ChatGPT answers, unedited

If your main goal is making backlink-profile comparison fast and actionable, I’d shortlist these:

1. Ahrefs — probably the easiest for backlink gap analysis

ahrefs.com

Ahrefs is particularly good if you're asking: “Who links to my competitors but not to me?”

Its Link Intersect lets you compare your site against up to 10 competitors and identify referring domains or individual pages that link to competitors but not your site. You can filter the results by metrics such as DR and traffic and export the opportunities. Ahrefs Help Center Ahrefs Help Center

I’d use it for: competitor link-gap audits, prospecting, and building outreach lists.

2. Semrush — best if you want backlink comparison alongside broader competitor research

semrush.com

Semrush's Backlink Gap lets you compare up to five competing websites and identify referring domains that link to competitors but not you. It also provides filters, trend visualization, and CSV/Excel exports. Semrush

Its regular Backlinks tool also supports side-by-side comparisons, anchor-text analysis, referring IPs, top link-acquiring pages, and bulk backlink analysis. Semrush

I’d use it for: agencies that want backlink analysis integrated with keyword, traffic, PPC, content, and broader competitor research.

3. Majestic — strongest if backlinks are the primary thing you care about

majestic.com

Majestic's Site Comparator can compare up to 10 sites, including Trust Flow, Citation Flow, referring domains, external inbound links, historical growth, and Topical Trust Flow. It also has Clique Hunter for finding sites linking to competitors but not you. Majestic Majestic

I’d use it for: more forensic backlink analysis, link-quality assessment, and understanding what types of sites/topics are linking to competitors.

My practical recommendation

For an SEO consultant, I'd think about them this way:

• Want the quickest competitor → link opportunities workflow? → Ahrefs
• Want an all-in-one SEO competitor platform? → Semrush
• Want the deepest backlink-specific analysis? → Majestic

If I were setting up a repeatable competitor backlink audit, I'd probably use Ahrefs or Semrush as the primary platform and structure the analysis around:

1. Referring-domain overlap
2. Competitor-only referring domains
3. High-authority links competitors have acquired
4. Link velocity/new vs. lost links
5. Anchor-text distribution
6. Top pages attracting competitor backlinks
7. Digital PR/resource/listicle opportunities
8. Links shared by multiple competitors

That gives you considerably more insight than simply comparing “total backlinks.”

Its Link Intersect lets you compare your site against up to 10 competitors and identify referring domains or individual pages that link to competitors but not your site. You can filter the results by metrics such as DR and traffic and export the opportunities. Ahrefs Help Center Ahrefs Help Center

I’d use it for: competitor link-gap audits, prospecting, and building outreach lists.

2. Semrush — best if you want backlink comparison alongside broader competitor research

semrush.com

Semrush's Backlink Gap lets you compare up to five competing websites and identify referring domains that link to competitors but not you. It also provides filters, trend visualization, and CSV/Excel exports. Semrush

Its regular Backlinks tool also supports side-by-side comparisons, anchor-text analysis, referring IPs, top link-acquiring pages, and bulk backlink analysis. Semrush

I’d use it for: agencies that want backlink analysis integrated with keyword, traffic, PPC, content, and broader competitor research.

3. Majestic — strongest if backlinks are the primary thing you care about

majestic.com

Majestic's Site Comparator can compare up to 10 sites, including Trust Flow, Citation Flow, referring domains, external inbound links, historical growth, and Topical Trust Flow. It also has Clique Hunter for finding sites linking to competitors but not you.

I’d use it for: more forensic backlink analysis, link-quality assessment, and understanding what types of sites/topics are linking to competitors.

My practical recommendation

For an SEO consultant, I'd think about them this way:

For an SEO consultant doing competitor backlink profile comparisons, the platforms that make the workflow easiest are usually the ones with a strong link index + competitor gap analysis + filtering/export tools. The best options are: Ahrefs HubSpot Blog

My typical consultant workflow

For a backlink competitor analysis, I’d usually structure it like this:

1. Find competitor link gaps

• Use Ahrefs Link Intersect or Semrush Backlink Gap.
• Identify domains linking to 2–5 competitors but not your client. Ahrefs HubSpot Blog
• Evaluate link quality

• Filter by:

• Referring domain authority/rating
• Traffic
• Relevance/topical fit
• Follow vs. nofollow
• Anchor text patterns
• Link placement/context
• Analyze competitor link acquisition patterns

Look for:

• Digital PR links
• Industry directories
• Guest contributions
• Resource pages
• Partnerships/sponsorships
• Content assets attracting links
• Build an outreach prospect list

Export:

• Linking domain
• URL that links to competitor
• Target page
• Anchor text
• Contact information (if available)

If I had to pick one for most SEO consultants

• Primary backlink competitor research: Ahrefs
• Agency SEO stack (SEO + PPC + reporting): Semrush
• Client-friendly reporting: Moz
• Link forensic work: Majestic

A common setup is Ahrefs + Semrush: Ahrefs for deep link discovery and Semrush for broader competitive intelligence and reporting. No backlink index captures the entire web, so comparing results across tools can reveal additional opportunities. Backly BizTechScout

For a consultant doing monthly competitor reports, I’d also look at whether the platform can automate “new competitor backlinks discovered this month” reporting—that tends to be more actionable than a one-time backlink count comparison.

The easiest platforms for side-by-side competitor backlink analysis are:

• ahrefs.com — Probably the most straightforward. Its Link Intersect compares your site with up to 10 competitors and highlights referring domains linking to competitors but not you. Ahrefs Help Center Ahrefs
• semrush.com — Excellent for Backlink Gap, comparing up to five sites and filtering shared/missing referring domains. semrush.com semrush.com
• moz.com — Good for simpler backlink research, though I’d generally choose Ahrefs or Semrush for deep competitive comparisons.

My practical pick: Ahrefs for dedicated link-gap analysis; Semrush if you want backlink comparison integrated with broader competitor/keyword research.

Best overall: Ahrefs. For comparing backlink profiles, I’d shortlist:

• Ahrefs — best for deep competitor backlink research and Link Intersect/gap analysis. LinkGathering LBHQ
• Semrush — arguably the easiest side-by-side workflow; Backlink Gap compares up to five domains and highlights links competitors have that you don’t. Semrush
• Moz Pro — simpler interface and useful if you report heavily using Domain Authority/Spam Score. blog.hubspot.com
• Majestic — excellent specialist option for Trust Flow/Citation Flow and validating backlink quality. linkindex.us

My consultant pick: use Ahrefs as the primary tool, with Semrush as a second data source when backlink gaps are strategically important.

Ahrefs and Semrush are the easiest choices for competitor backlink comparisons. LBHQ Link Building Journal

• Ahrefs — Best overall. Its Link Intersect/Backlink Gap features quickly show domains linking to competitors but not you. Excellent filtering and prospecting.
• Semrush — Best all-in-one option. Backlink Gap makes side-by-side competitor comparison particularly straightforward.
• Moz Pro — Easiest for simpler reporting and DA/Spam Score, but less powerful for deep competitive research.
• Majestic — Excellent for historical link intelligence and Trust Flow, but less convenient for straightforward competitor gap analysis.
• SE Ranking — Good lower-cost alternative with backlink gap functionality. Buy Backlinks for SEO Symaxx Digital

My consultant pick: If backlink analysis is a major part of your work, use Ahrefs. If you already use a broader SEO suite, Semrush is probably the most convenient.

For a typical competitor analysis, I'd compare referring domains, common/gap domains, high-authority links, anchor text, dofollow/nofollow, and competitors' most-linked pages rather than simply comparing total backlink counts.

If your main goal is easy, actionable backlink-profile comparison, I’d shortlist these:

1. Semrush — easiest all-around

Semrush's Backlink Gap is probably the most straightforward workflow for client/competitor analysis. You can compare up to five sites simultaneously, see which referring domains link to competitors but not your site, filter the opportunities, and export the results. Semrush Semrush

What I particularly like for consulting is that Semrush can also help identify competitors based on shared referring domains, rather than requiring you to already know who the competitors are. Semrush

Use it when: you want a fast "Here are the links your competitors have that you don't" report for clients.

2. Ahrefs — best for deeper backlink analysis

Ahrefs' Link Intersect is exceptionally clean. You enter your site plus competitors and it shows referring domains/pages that link to competitors but not you. It supports up to 10 competitors, with filters for metrics such as DR and traffic. Ahrefs Help Center Ahrefs Help Center

The advantage is that it's easy to go from:

competitor → referring domain → actual linking page → link opportunity

That makes it particularly good when the objective isn't merely benchmarking but actually building a link-acquisition campaign.

Use it when: backlink analysis is a major part of your SEO work.

3. Majestic — excellent for backlink-focused consulting

Majestic's Compare tool lets you compare up to 10 sites on Trust Flow, Citation Flow, referring domains and external inbound links, with deeper drilldowns available. Its Clique Hunter also identifies sites linking to competitors but not your own site. Majestic

Its differentiator is the depth of its link-specific metrics, including Trust Flow, Citation Flow and Topical Trust Flow. Majestic

Use it when: you're doing sophisticated link-profile quality, topical relevance, or link-network analysis.

My recommendation

For an SEO consultant, I'd rank them:

1. Semrush — easiest client-facing competitor comparison and opportunity discovery.
2. Ahrefs — strongest choice if you're actually doing substantial link-building.
3. Majestic — excellent specialist tool when backlink intelligence is the core requirement.
4. Moz — worth considering if simplicity and broader SEO reporting matter more than backlink depth.

If I were building a standard competitor backlink audit, I'd probably use Ahrefs or Semrush, then structure the analysis around:

• Total referring domains
• New/lost referring domains
• Authority/quality distribution
• Competitor-exclusive referring domains
• Links shared by multiple competitors
• Top linked-to competitor pages
• Anchor-text patterns
• Editorial vs. directory/sponsorship/etc. links
• Topical relevance
• "Easy wins" for outreach

The multi-competitor link-gap view is the feature I'd prioritize over simply looking at each competitor's backlink count—it turns a pile of backlink data into an actual prospecting list. Ahrefs Help Center Semrush

Use it when: you want a fast "Here are the links your competitors have that you don't" report for clients.

2. Ahrefs — best for deeper backlink analysis

Ahrefs' Link Intersect is exceptionally clean. You enter your site plus competitors and it shows referring domains/pages that link to competitors but not you. It supports up to 10 competitors, with filters for metrics such as DR and traffic. Ahrefs Help Center Ahrefs Help Center

The advantage is that it's easy to go from:

competitor → referring domain → actual linking page → link opportunity

That makes it particularly good when the objective isn't merely benchmarking but actually building a link-acquisition campaign.

Use it when: backlink analysis is a major part of your SEO work.

3. Majestic — excellent for backlink-focused consulting

Majestic's Compare tool lets you compare up to 10 sites on Trust Flow, Citation Flow, referring domains and external inbound links, with deeper drilldowns available. Its Clique Hunter also identifies sites linking to competitors but not your own site. majestic.com

Its differentiator is the depth of its link-specific metrics, including Trust Flow, Citation Flow and Topical Trust Flow.

Use it when: you're doing sophisticated link-profile quality, topical relevance, or link-network analysis.

My recommendation

For an SEO consultant, I'd rank them:

If your main job is comparing backlink profiles across competitors, I’d shortlist these platforms:

1. Ahrefs — my first choice

ahrefs.com

Ahrefs makes this particularly straightforward with Link Intersect: you enter your site and competitors and it identifies referring domains/pages that link to competitors but not you. You can compare up to 10 competitors and filter opportunities by metrics such as DR and traffic. Ahrefs Help Center Ahrefs

For an SEO consultant, that's extremely useful because you're not just asking "Who has more backlinks?"—you're answering:

"Which authoritative sites link to my competitors that I haven't earned a link from?"

Ahrefs also lets you drill into individual competitor backlink profiles, historical links, dofollow links, referring pages, anchor text, etc. Ahrefs

Best workflow:
Competitors → Link Intersect → filter for high-DR/high-traffic referring domains → identify linkable assets → build outreach list.

2. Semrush — arguably easiest for side-by-side comparisons

semrush.com

Semrush's Backlink Gap is probably the most immediately understandable interface for this particular task. It lets you compare up to five competing websites simultaneously, showing referring domains and filtering for sites that link to competitors but not you. Semrush

It also has a broader Backlinks comparison workflow with side-by-side comparisons, competitor discovery, referring IP analysis, anchor-text analysis, and bulk backlink analysis. Semrush

I'd favor Semrush over Ahrefs if you're already using it for keyword research, position tracking, technical SEO, content, and reporting.

3. Majestic — best when backlink quality is the focus

Majestic is more specialized around link intelligence, particularly Trust Flow and Citation Flow. It's useful when you want to investigate why one competitor appears to have a stronger link profile rather than simply counting referring domains.

I'd choose it as a supplementary tool rather than my primary competitive SEO platform.

4. Moz Pro — easiest for less technical stakeholders

Moz is useful when clients or marketing teams are already comfortable with Domain Authority (DA) and Page Authority (PA). It's less compelling than Ahrefs/Semrush if your primary objective is sophisticated competitor link-gap prospecting.

5. SE Ranking — worth considering for smaller agencies

If you're managing multiple smaller clients and cost matters, SE Ranking gives you competitor/backlink research alongside the rest of an SEO suite. It's not my first choice for extremely deep link research, but it can be a practical consolidated platform.

My recommendation as an SEO consultant

I'd rank them:

1. Ahrefs — best for serious backlink competitor analysis and prospecting.
2. Semrush — best if you want backlink comparison integrated into a broader SEO platform.
3. Majestic — best specialist supplement for link-quality analysis.
4. Moz Pro — best for straightforward authority/client reporting.
5. SE Ranking — best budget-oriented all-in-one alternative.

If your specific requirement is "put my site + 3–5 competitors in one screen and quickly find the backlinks I'm missing," I'd start with Semrush Backlink Gap or Ahrefs Link Intersect. Both are explicitly designed around that workflow. Semrush Ahrefs Help Center

One important caveat: don't judge a competitor's backlink strength primarily by total backlink count. I'd compare unique referring domains, relevant/high-quality domains, dofollow links, anchor-text distribution, link velocity, and which competitor pages attract the links. That produces a much more useful competitive analysis. Semrush Ahrefs

For an SEO consultant, that's extremely useful because you're not just asking "Who has more backlinks?"—you're answering:

"Which authoritative sites link to my competitors that I haven't earned a link from?"

Ahrefs also lets you drill into individual competitor backlink profiles, historical links, dofollow links, referring pages, anchor text, etc. Ahrefs

Best workflow:
Competitors → Link Intersect → filter for high-DR/high-traffic referring domains → identify linkable assets → build outreach list.

2. Semrush — arguably easiest for side-by-side comparisons

semrush.com

Semrush's Backlink Gap is probably the most immediately understandable interface for this particular task. It lets you compare up to five competing websites simultaneously, showing referring domains and filtering for sites that link to competitors but not you. Semrush

It also has a broader Backlinks comparison workflow with side-by-side comparisons, competitor discovery, referring IP analysis, anchor-text analysis, and bulk backlink analysis. Semrush

I'd favor Semrush over Ahrefs if you're already using it for keyword research, position tracking, technical SEO, content, and reporting.

3. Majestic — best when backlink quality is the focus

Majestic is more specialized around link intelligence, particularly Trust Flow and Citation Flow. It's useful when you want to investigate why one competitor appears to have a stronger link profile rather than simply counting referring domains.

I'd choose it as a supplementary tool rather than my primary competitive SEO platform.

4. Moz Pro — easiest for less technical stakeholders

Moz is useful when clients or marketing teams are already comfortable with Domain Authority (DA) and Page Authority (PA). It's less compelling than Ahrefs/Semrush if your primary objective is sophisticated competitor link-gap prospecting.

5. SE Ranking — worth considering for smaller agencies

If you're managing multiple smaller clients and cost matters, SE Ranking gives you competitor/backlink research alongside the rest of an SEO suite. It's not my first choice for extremely deep link research, but it can be a practical consolidated platform.

My recommendation as an SEO consultant

I'd rank them:

1. Ahrefs — best for serious backlink competitor analysis and prospecting.
2. Semrush — best if you want backlink comparison integrated into a broader SEO platform.
3. Majestic — best specialist supplement for link-quality analysis.
4. Moz Pro — best for straightforward authority/client reporting.
5. SE Ranking — best budget-oriented all-in-one alternative.

If your specific requirement is "put my site + 3–5 competitors in one screen and quickly find the backlinks I'm missing," I'd start with Semrush Backlink Gap or Ahrefs Link Intersect. Both are explicitly designed around that workflow.

For an SEO consultant doing competitor backlink profile comparisons, the platforms that make the process easiest are usually the ones with strong link gap, referring domain, anchor text, and competitor comparison workflows. The best choices are:

My shortlist for an SEO consultant

1. Best overall: Ahrefs

Use it when your goal is:

• Finding where competitors earn links
• Building outreach lists
• Reverse-engineering competitor content
• Finding broken-link opportunities
• Comparing link velocity over time

Typical workflow:

1. Enter competitor domain into Site Explorer
2. Export referring domains
3. Filter by: - Domain Rating
4. Traffic
5. Dofollow links
6. Relevant categories
7. Recently acquired links
8. Repeat for 3–5 competitors
9. Run Link Intersect to find shared opportunities

Ahrefs is often the first choice for specialists whose primary job is link acquisition. LBHQ The Blueprint Training

2. Best for agencies: Semrush

Choose Semrush if backlink analysis is only one part of your workflow.

Its strengths:

• Backlink Gap comparisons
• Competitor keyword research
• Position tracking
• Content analysis
• Client reporting

It’s especially useful when you need one platform across SEO, PPC, content, and reporting. The Blueprint Training

3. Best lightweight option: Moz

Good fit if you:

• Need quick client-facing audits
• Use Domain Authority as a familiar metric
• Don’t run large-scale link campaigns

It’s easier to learn, but advanced link prospectors often prefer Ahrefs or Semrush for deeper competitor analysis. Heroic Rankings

If I were building a competitor backlink analysis stack

For most SEO consulting work:

• Primary tool: Ahrefs
• Secondary validation: Semrush
• Reporting/client education: Moz
• Specialized link quality checks: Majestic

One important caveat: no backlink platform sees the entire web. Different tools have different crawlers and indexes, so for high-value competitive research it’s common to cross-check more than one source. Backly BizTechScout

For a repeatable consultant workflow, I’d typically create a spreadsheet with:

• Competitor domain
• Referring domain
• Link URL
• Target URL
• Anchor text
• Link type (follow/nofollow)
• Domain authority metric
• Estimated traffic
• Outreach angle
• Priority score

That turns raw backlink comparisons into an actual link acquisition plan.

If your priority is making competitor backlink comparison fast and actionable, I’d shortlist these:

1. Ahrefs — my first choice

ahrefs.com has arguably the cleanest workflow for answering the question: "Who links to my competitors but not me?"

Its Link Intersect tool lets you enter your site and up to 10 competitors, then identifies referring domains/pages that link to competitors but not your site. You can filter by metrics such as DR and traffic and export the opportunities. Ahrefs Help Center Ahrefs Help Center

For an SEO consultant, that's particularly useful because you can quickly turn the analysis into an outreach prospect list.

Best workflow:
Your site → 3–10 competitors → Link Intersect → filter for quality/relevance → export → outreach

Ahrefs also has Domain Comparison and Site Explorer for looking beyond the simple link gap—e.g., backlink profiles, referring domains and competitor pages earning links. Ahrefs Ahrefs

2. Semrush — excellent if you want an all-in-one platform

semrush.com has a dedicated Backlink Gap tool. You can compare up to five competing websites simultaneously and quickly filter for domains linking to competitors but not you. It also provides backlink-growth visualization and CSV/Excel export. Semrush

The advantage over buying a backlink-only tool is that you can immediately move from:

competitor backlinks → keyword gaps → competitor traffic → content opportunities → outreach

So I'd lean toward Semrush if you're doing full competitive SEO audits, rather than primarily link building.

3. Moz Pro — easiest for client-friendly reporting

moz.com is worth considering if your clients care more about straightforward authority metrics and reporting than very deep link prospecting.

It's not my first choice for sophisticated competitor backlink research, but the interface and metrics can be easier to explain to non-SEO stakeholders.

4. Majestic — best when backlink analysis is the job

majestic.com is more specialized. Its Trust Flow / Citation Flow ecosystem and link graph are useful when you're doing serious link-quality and link-profile analysis.

I'd choose it alongside another platform rather than as my only SEO suite.

My recommendation as an SEO consultant

If I were setting up a consultancy stack:

• Ahrefs → best choice if backlink/competitor analysis is the core requirement.
• Semrush → best if you want one platform for backlinks + keywords + competitors + broader SEO.
• Ahrefs + Semrush → ideal for high-end consulting where backlink-index differences matter.
• Majestic → add it when you need deeper link-forensics work.
• SE Ranking → consider it when software cost matters and you manage multiple client campaigns.

The key metric I'd focus on isn't "who has more backlinks?" It's "which high-quality referring domains do my competitors have that I don't?" Referring-domain overlap is much more actionable for building a link-acquisition strategy. Ahrefs and Semrush both make that comparison particularly easy. Ahrefs Semrush

If you tell me your approximate number of clients and monthly SEO-tool budget, I can also recommend the best platform/plan combination for an agency or solo consultancy.

For an SEO consultant, that's particularly useful because you can quickly turn the analysis into an outreach prospect list.

Best workflow:
Your site → 3–10 competitors → Link Intersect → filter for quality/relevance → export → outreach

Ahrefs also has Domain Comparison and Site Explorer for looking beyond the simple link gap—e.g., backlink profiles, referring domains and competitor pages earning links. Ahrefs Ahrefs

2. Semrush — excellent if you want an all-in-one platform

semrush.com has a dedicated Backlink Gap tool. You can compare up to five competing websites simultaneously and quickly filter for domains linking to competitors but not you. It also provides backlink-growth visualization and CSV/Excel export. semrush.com

The advantage over buying a backlink-only tool is that you can immediately move from:

competitor backlinks → keyword gaps → competitor traffic → content opportunities → outreach

So I'd lean toward Semrush if you're doing full competitive SEO audits, rather than primarily link building.

3. Moz Pro — easiest for client-friendly reporting

moz.com is worth considering if your clients care more about straightforward authority metrics and reporting than very deep link prospecting.

It's not my first choice for sophisticated competitor backlink research, but the interface and metrics can be easier to explain to non-SEO stakeholders.

4. Majestic — best when backlink analysis is the job

If your main goal is making competitor backlink comparisons fast and actionable, I’d shortlist these:

1. Ahrefs — my first choice

ahrefs.com is probably the easiest platform if backlink analysis is a major part of your consulting work.

Its Link Intersect report lets you enter your site plus up to 10 competitors and immediately identify referring domains/pages that link to competitors but not you. You can filter by things such as DR, traffic and dofollow status, then export the opportunities. Ahrefs Help Center Ahrefs Help Center

The workflow is essentially:

Your site → competitors → "Show link opportunities" → filter → prospect list

That's particularly useful when you're turning competitor analysis into an actual link-building campaign, rather than merely reporting backlink counts.

2. Semrush — excellent if you already use it

semrush.com has a very good Backlink Gap tool. You can compare your profile with up to five competing domains and identify referring domains that link to competitors but not you. Semrush Semrush

I particularly like Semrush for agencies because the backlink comparison sits alongside Keyword Gap, Traffic Analytics, Organic Research and broader competitor analysis. So you can answer:

"Who links to my competitors, what keywords do they beat me on, and where are the biggest opportunities?"

without jumping between platforms.

3. Moz Pro — easiest for less technical stakeholders

moz.com is worth considering if your priority is simple reporting and understandable metrics such as Domain Authority.

I'd choose it over Ahrefs/Semrush when the client doesn't need highly granular link prospecting and primarily wants a clear view of:

• Referring domains
• Domain Authority
• Spam signals
• Anchor text
• Competitor link differences

4. Majestic — useful as a second data source

majestic.com is more specialized. Its Trust Flow / Citation Flow ecosystem can give you a different perspective on link quality and link relationships.

I wouldn't normally make it my only competitor backlink platform, but it's valuable for validating particularly important domains because backlink databases don't all discover the same links. Backly

What I'd use as an SEO consultant

If I had to pick one: Ahrefs.

Its competitor workflow is exceptionally direct: pull competitor profiles in Site Explorer, use Link Intersect to identify missing referring domains, investigate the actual linking pages, and export prospects. Ahrefs currently supports comparisons against up to 10 competitors in Link Intersect. Ahrefs Help Center Ahrefs

If you're already paying for Semrush: don't buy another platform solely for this. Its Backlink Gap functionality is very capable and integrates nicely with the rest of the competitive research workflow. Semrush

For serious consulting work, I'd actually use Ahrefs + Semrush selectively, because their backlink indexes are independent and will surface different link sets. No third-party backlink index represents the entire web. searchscientists.com biztechscout.com

If you tell me whether you're doing agency/client SEO, in-house SEO, or link building, I can also rank these specifically by ease of use, backlink index quality, competitor comparison, reporting, and price.

"Who links to my competitors, what keywords do they beat me on, and where are the biggest opportunities?"

without jumping between platforms.

3. Moz Pro — easiest for less technical stakeholders

As an SEO consultant, I’d prioritize platforms that make side-by-side backlink comparisons, link gap discovery, and prospecting fast. The strongest options are: Backly HubSpot Blog

My typical SEO consultant stack

For serious competitor link building

1. Ahrefs - Export competitor referring domains
2. Run Link Intersect
3. Find high-authority sites linking to multiple competitors
4. Analyze anchor text patterns
5. Build outreach lists

For agency reporting + broader SEO work

1. Semrush
2. Ahrefs for deeper link research

Semrush is often better when the client wants one dashboard covering rankings, keywords, content, technical SEO, and backlinks. Ahrefs is usually the faster tool when the goal is specifically: “Where are competitors getting links that we don’t have?” The Blueprint Training LBHQ

The backlink comparison features I’d look for

A good competitor backlink platform should let you compare:

• Referring domains (more important than raw backlink count)
• Common backlinks (sites linking to everyone)
• Link gaps (sites linking to competitors but not you)
• Domain authority/strength metrics
• Anchor text distribution
• Dofollow vs. nofollow links
• New and lost backlinks
• Top linked pages
• Competitor link velocity

Quick recommendation by scenario

• Link building agency: Ahrefs
• Full-service SEO agency: Semrush + Ahrefs
• Small business SEO: Moz or SE Ranking
• Enterprise link audits: Ahrefs + Majestic
• Client-friendly reports: Moz or Semrush

If backlink competitor analysis is the main job, I’d start with Ahrefs; if backlink analysis is one part of a broader SEO workflow, Semrush is usually the better operational choice. Backly The Blueprint Training

If your main goal is easy, side-by-side competitor backlink comparison, I’d shortlist these:

1. Ahrefs — my first choice

Ahrefs is particularly good if backlink competitor analysis is a major part of your consulting work.

Its Link Intersect report lets you put your site alongside up to 10 competitors and immediately identify referring domains that link to competitors but not to you. You can filter by metrics such as Domain Rating and traffic and export the opportunities. Ahrefs Help Center Ahrefs Help Center

It also has Domain Comparison, where you can compare backlink counts, referring domains, Domain Rating and other SEO metrics across competitors. Ahrefs

Best workflow:
Your site → 5–10 competitors → Link Intersect → filter for high-DR/high-traffic referring domains → prospect for outreach

2. Semrush — arguably the easiest for a client-facing workflow

Semrush has a dedicated Backlink Gap tool. You can compare up to five sites simultaneously, with a visual comparison and a table showing referring domains that competitors have but you don't. Semrush

What's particularly nice is that you can move from:

Competitor discovery → backlink comparison → gap identification → outreach opportunities

without jumping between multiple tools.

Semrush also lets you compare backlink profiles side-by-side and analyze referring IPs, anchor text, competitors' link-acquiring pages, and new/lost links. Semrush

3. Majestic — excellent when you care about link quality

Majestic is worth considering if you're doing serious link-quality analysis, rather than simply asking "who links to my competitors?"

Its Trust Flow and Citation Flow metrics give you another way to evaluate the quality and influence of referring domains. I wouldn't choose it over Ahrefs for general competitor research, but it can be an excellent second data source when validating backlink opportunities.

4. Moz Pro — easiest for less technical stakeholders

Moz's Link Explorer is useful when your clients already understand Domain Authority (DA) and want straightforward reports.

I'd put it behind Ahrefs and Semrush for sophisticated competitor link-gap research, but it can be easier to explain to a marketing team that doesn't live in SEO tools every day.

What I'd use as an SEO consultant

If I were building a consulting workflow today:

Ahrefs + Semrush would be my preferred combination.

• Ahrefs: primary backlink research and competitor link prospecting.
• Semrush: competitive validation and broader SEO/keyword/traffic intelligence.
• Majestic: occasional second opinion on link quality.
• Moz: primarily when a client specifically uses DA as a reporting KPI.

One important caveat: don't compare competitors based on total backlink count alone. Referring domains, link relevance, authority, placement/context, follow status, anchor-text patterns, and which pages attract the links are generally much more actionable.

If you tell me whether you're doing agency/client SEO, in-house SEO, or link-building outreach, I can also rank these specifically for ease of use, data quality, competitor gap reports, exports, and price.

It also has Domain Comparison, where you can compare backlink counts, referring domains, Domain Rating and other SEO metrics across competitors. Ahrefs

Best workflow:
Your site → 5–10 competitors → Link Intersect → filter for high-DR/high-traffic referring domains → prospect for outreach

2. Semrush — arguably the easiest for a client-facing workflow

Semrush has a dedicated Backlink Gap tool. You can compare up to five sites simultaneously, with a visual comparison and a table showing referring domains that competitors have but you don't. Semrush

What's particularly nice is that you can move from:

Competitor discovery → backlink comparison → gap identification → outreach opportunities

without jumping between multiple tools.

Semrush also lets you compare backlink profiles side-by-side and analyze referring IPs, anchor text, competitors' link-acquiring pages, and new/lost links. Semrush

3. Majestic — excellent when you care about link quality

Majestic is worth considering if you're doing serious link-quality analysis, rather than simply asking "who links to my competitors?"

Its Trust Flow and Citation Flow metrics give you another way to evaluate the quality and influence of referring domains. I wouldn't choose it over Ahrefs for general competitor research, but it can be an excellent second data source when validating backlink opportunities.

4. Moz Pro — easiest for less technical stakeholders

Moz's Link Explorer is useful when your clients already understand Domain Authority (DA) and want straightforward reports.

I'd put it behind Ahrefs and Semrush for sophisticated competitor link-gap research, but it can be easier to explain to a marketing team that doesn't live in SEO tools every day.

What I'd use as an SEO consultant

If I were building a consulting workflow today:

Ahrefs + Semrush would be my preferred combination.

• Ahrefs: primary backlink research and competitor link prospecting.
• Semrush: competitive validation and broader SEO/keyword/traffic intelligence.
• Majestic: occasional second opinion on link quality.
• Moz: primarily when a client specifically uses DA as a reporting KPI.

One important caveat: don't compare competitors based on total backlink count alone. Referring domains, link relevance, authority, placement/context, follow status, anchor-text patterns, and which pages attract the links are generally much more actionable.

If you tell me whether you're doing agency/client SEO, in-house SEO, or link-building outreach, I can also rank these specifically for ease of use, data quality, competitor gap reports, exports, and price.

If your main goal is easy, actionable competitor backlink comparison, I’d narrow the field to Ahrefs and Semrush, with a few alternatives depending on your workflow.

1. Ahrefs — my first choice

ahrefs.com is probably the easiest platform if backlink competitive analysis is a core part of your SEO work.

Its Link Intersect report lets you put in your site plus up to 10 competitors and see domains/pages linking to competitors but not you. You can filter by things like DR, traffic and dofollow status, then export the prospects. Ahrefs Help Center Ahrefs

The broader Domain Comparison/Batch Analysis functionality also makes it easy to compare referring domains, backlinks and other SEO metrics across competitors. Ahrefs

Best workflow:
Your site → 3–10 competitors → Link Intersect → filter high-authority/relevant domains → prospect list

That's particularly useful when you're trying to answer "Which links do my competitors have that I don't?"

2. Semrush — best if you're already using it

semrush.com has a very similar Backlink Gap workflow. It compares your backlink profile against up to five competitors and surfaces domains linking to competitors but not your site, with sorting by authority/relevance. Semrush

I'd choose Semrush over Ahrefs if your SEO work already revolves around Semrush's broader ecosystem—keyword research, position tracking, content, technical audits, PPC, etc.

Big advantage: you can combine backlink gaps with keyword/competitive research without switching platforms.

3. Moz Pro — easiest for straightforward client reporting

moz.com is worth considering if your clients understand Domain Authority (DA) and you want a relatively uncomplicated interface.

It's not my first choice for sophisticated link prospecting, but it's convenient when the deliverable is something like:

"Competitor A has 1,200 referring domains and DA 62; we're at 680 and DA 48."

4. Majestic — for specialists

majestic.com is more specialized. Its Trust Flow/Citation Flow ecosystem and historical link data can be useful when you're doing serious link-profile investigation or validating what other indexes show.

I wouldn't choose it purely for ease of competitor comparison, though.

What I'd recommend as an SEO consultant

If backlinks are a major part of your consulting work: Ahrefs.

If you already use Semrush: stay with Semrush rather than buying another platform solely for backlink comparison.

If you're primarily producing client-facing SEO reports: Moz Pro can be sufficient.

And I'd focus less on total backlinks and more on referring domains, link quality, relevance, anchor text, and links shared by multiple competitors. A competitor having 50,000 backlinks doesn't necessarily mean you have 50,000 opportunities; the referring-domain overlap is much more actionable. Neil Patel

If you tell me whether you're doing agency/client SEO, in-house SEO, or link building, I can also give you a side-by-side Ahrefs vs Semrush workflow specifically for competitor backlink analysis, including which reports I'd use and what metrics I'd export.

If your main job is comparing backlink profiles and turning competitor links into link-building opportunities, I’d narrow the field to Ahrefs and Semrush, with a few alternatives depending on budget and depth.

1. Ahrefs — my first choice

ahrefs.com

For a consultant, Ahrefs is probably the easiest platform for answering “Who links to my competitors that doesn't link to me?”

Its Link Intersect tool lets you enter your site plus up to 10 competitors and identify referring domains/pages that link to competitors but not you. You can then filter by things like Domain Rating, traffic and dofollow status. Ahrefs Help Center Ahrefs

The workflow is particularly good:

Your site + 3–10 competitors → common referring domains → filter for quality/relevance → export prospects → outreach.

Ahrefs also has Domain Comparison/Batch Analysis, which makes it easy to compare high-level backlink metrics such as referring domains, backlinks and Domain Rating across multiple competitors. Ahrefs

I'd choose Ahrefs if backlink research is a major part of your consulting work.

2. Semrush — extremely good alternative

semrush.com

Semrush's Backlink Gap is almost exactly what you'd want for competitive analysis. It compares up to five competing domains and highlights referring domains that link to competitors but not your site. You can filter and export the opportunities. Semrush

The big advantage is that Semrush combines this with Keyword Gap, competitor research, rankings, PPC, site auditing and content tools, so it's attractive if you're doing broader SEO consulting rather than primarily link building. Semrush

I'd choose Semrush if you want one platform for the entire competitive-analysis workflow.

3. Majestic — excellent for specialist link analysis

majestic.com

Majestic is worth considering if you care deeply about link quality and link-network analysis, particularly its Trust Flow and Citation Flow metrics.

It's less of an all-purpose SEO platform than Ahrefs/Semrush, but can be a useful second data source when you're doing serious backlink investigations.

4. Moz Pro — easier for less technical teams

moz.com

Moz's Link Explorer is relatively approachable and its Domain Authority metric is still commonly used in client-facing SEO conversations.

I'd consider it if your clients already use DA or if you want something less intimidating for non-technical stakeholders. I wouldn't choose it over Ahrefs specifically for deep competitive link prospecting.

5. SE Ranking — worth looking at on a budget

seranking.com

SE Ranking is a reasonable option if you're an agency/consultant who wants backlink-gap functionality alongside rank tracking and broader SEO capabilities without necessarily paying for the most heavyweight platform.

My consultant shortlist

If I were setting up an SEO consulting stack today:

• Best for backlink competitor analysis: Ahrefs
• Best all-in-one SEO competitor platform: Semrush
• Best specialist/second opinion on links: Majestic
• Best for clients who care about DA: Moz
• Best value alternative: SE Ranking

If you're specifically asking because you want to do repeatable competitor backlink audits for clients, I'd lean Ahrefs. Its Link Intersect workflow is unusually close to the actual consulting question: “Which authoritative sites are already willing to link to companies like my client?” Ahrefs Ahrefs Help Center

If you tell me your budget (e.g. <$100, $100–200, $200+) and whether you're solo or managing multiple clients, I can rank the platforms specifically for your workflow.

Its Link Intersect tool lets you enter your site plus up to 10 competitors and identify referring domains/pages that link to competitors but not you. You can then filter by things like Domain Rating, traffic and dofollow status. Ahrefs Help Center Ahrefs

The workflow is particularly good:

Your site + 3–10 competitors → common referring domains → filter for quality/relevance → export prospects → outreach.

Ahrefs also has Domain Comparison/Batch Analysis, which makes it easy to compare high-level backlink metrics such as referring domains, backlinks and Domain Rating across multiple competitors. Ahrefs

I'd choose Ahrefs if backlink research is a major part of your consulting work.

2. Semrush — extremely good alternative

semrush.com

Semrush's Backlink Gap is almost exactly what you'd want for competitive analysis. It compares up to five competing domains and highlights referring domains that link to competitors but not your site. You can filter and export the opportunities. Semrush

The big advantage is that Semrush combines this with Keyword Gap, competitor research, rankings, PPC, site auditing and content tools, so it's attractive if you're doing broader SEO consulting rather than primarily link building. Semrush

I'd choose Semrush if you want one platform for the entire competitive-analysis workflow.

3. Majestic — excellent for specialist link analysis

majestic.com

Majestic is worth considering if you care deeply about link quality and link-network analysis, particularly its Trust Flow and Citation Flow metrics.

It's less of an all-purpose SEO platform than Ahrefs/Semrush, but can be a useful second data source when you're doing serious backlink investigations.

4. Moz Pro — easier for less technical teams

moz.com

Moz's Link Explorer is relatively approachable and its Domain Authority metric is still commonly used in client-facing SEO conversations.

I'd consider it if your clients already use DA or if you want something less intimidating for non-technical stakeholders. I wouldn't choose it over Ahrefs specifically for deep competitive link prospecting.

5. SE Ranking — worth looking at on a budget

seranking.com

SE Ranking is a reasonable option if you're an agency/consultant who wants backlink-gap functionality alongside rank tracking and broader SEO capabilities without necessarily paying for the most heavyweight platform.

My consultant shortlist

If I were setting up an SEO consulting stack today:

If your main goal is quickly comparing competitors’ backlink profiles and turning the comparison into link-building opportunities, I’d shortlist these:

1. ahrefs.com — my top pick

For pure competitor backlink analysis, Ahrefs is probably the easiest platform to recommend.

Its Link Intersect tool lets you put in your site and up to 10 competitors and find referring domains/pages that link to competitors but not you. You can then filter by metrics such as Domain Rating, traffic and dofollow status. Ahrefs Help Center Ahrefs

The particularly useful workflow is:

Your site + 3–5 competitors → sites linking to multiple competitors → filter for authoritative/relevant domains → prospect list for outreach.

Ahrefs also has Domain Comparison and Batch Analysis for broader side-by-side benchmarking. Ahrefs

Best if: you're doing serious link-building or SEO consulting and want to go from "How does their backlink profile differ?" to "Who should I try to get a link from?"

2. semrush.com — best if you want backlinks + everything else

Semrush's Backlink Gap is extremely straightforward. You can compare up to five competing sites simultaneously, see their referring-domain overlap, identify domains linking to competitors but not you, and export the results. Semrush

It also has a useful Backlinks Competitors report that can identify competitors based on shared referring domains before you even start the gap analysis. Semrush Semrush

Best if: backlink analysis is one component of a broader competitor audit involving keywords, traffic, content, PPC, etc.

3. majestic.com — best for link-specific metrics

Majestic is more specialized around link intelligence. Its Compare tool can compare up to 10 sites using metrics including Trust Flow, Citation Flow, referring domains and external inbound links. Majestic

Its Pro offering also includes tools for finding sites that link to competitors but not you, plus backlink growth gaps. Majestic

Best if: you're particularly interested in evaluating the quality and characteristics of backlink profiles rather than just finding outreach prospects.

My recommendation as an SEO consultant

I'd rank them:

Ahrefs > Semrush > Majestic > Moz

But there's an important distinction:

• Need the best backlink-gap workflow? → Ahrefs
• Need backlink comparison + full competitor SEO research? → Semrush
• Need deep link-quality analysis? → Majestic
• Need a more approachable SEO platform? → Moz

For client audits, I'd personally use Ahrefs or Semrush. The killer report isn't simply "Competitor A has 42,000 backlinks and you have 8,000." It's "Competitors A, B and C all have links from these 37 relevant domains, but you don't." That's the data you can turn directly into an outreach strategy. Ahrefs Help Center Semrush

If you tell me whether you're doing local SEO, SaaS, ecommerce, publisher/content SEO, or agency work, I can also recommend the best platform based on database size, accuracy, competitor comparison, exports, and cost.

The particularly useful workflow is:

Your site + 3–5 competitors → sites linking to multiple competitors → filter for authoritative/relevant domains → prospect list for outreach.

Ahrefs also has Domain Comparison and Batch Analysis for broader side-by-side benchmarking. Ahrefs

Best if: you're doing serious link-building or SEO consulting and want to go from "How does their backlink profile differ?" to "Who should I try to get a link from?"

2. semrush.com — best if you want backlinks + everything else

Semrush's Backlink Gap is extremely straightforward. You can compare up to five competing sites simultaneously, see their referring-domain overlap, identify domains linking to competitors but not you, and export the results. Semrush

It also has a useful Backlinks Competitors report that can identify competitors based on shared referring domains before you even start the gap analysis. Semrush Semrush

Best if: backlink analysis is one component of a broader competitor audit involving keywords, traffic, content, PPC, etc.

3. majestic.com — best for link-specific metrics

Majestic is more specialized around link intelligence. Its Compare tool can compare up to 10 sites using metrics including Trust Flow, Citation Flow, referring domains and external inbound links.

Its Pro offering also includes tools for finding sites that link to competitors but not you, plus backlink growth gaps.

If your main goal is quickly comparing your backlink profile against competitors and turning the differences into link-building opportunities, I’d shortlist these:

1. ahrefs.com — my first choice

Ahrefs makes this particularly straightforward with Link Intersect. You enter your site and competitors and it shows domains/pages linking to competitors but not you. You can compare up to 10 targets, and filter for sites linking to multiple competitors—which is especially useful for identifying high-confidence outreach prospects. Ahrefs Help Center Ahrefs Help Center

Why I like it for consulting:

• Excellent competitor backlink discovery
• Very intuitive link-gap workflow
• Strong referring-domain and referring-page analysis
• Easy exports for client/outreach work
• Particularly good for answering: "Who links to everyone else in this SERP but not us?"

Best use: competitor link-gap analysis and prospecting.

2. semrush.com — best if you want the whole SEO stack

Semrush's Backlink Gap lets you compare up to five competing sites simultaneously and identify referring domains that link to competitors but not your site. It also provides a visual comparison of backlink growth and filtering/export functionality. Semrush

A nice advantage is that Semrush can also help identify the competitors themselves based on shared referring domains, rather than requiring you to already know who your backlink competitors are. Semrush

Best use: agencies/consultants who want backlink analysis alongside keyword, technical, content, and competitive research.

3. majestic.com — best for dedicated link intelligence

Majestic's Site Comparator is unusually good if the actual question is "How do these backlink profiles differ?" It can compare up to 10 sites simultaneously, including referring domains, external backlinks, Trust Flow, Citation Flow, historical growth, and topical categories. It also has Clique Hunter for finding sites linking to competitors. Majestic

I'd favor it when you're doing a deep off-page audit, rather than general SEO research.

What I'd choose as an SEO consultant

If you're buying one platform: Ahrefs.

If you already use Semrush: its Backlink Gap is more than good enough—you probably don't need another platform solely for this.

If backlink analysis is a major part of your consulting work: consider Ahrefs + Majestic. They give you somewhat different perspectives on link quality and competitive link profiles.

One important distinction: don't just compare total backlinks. For competitor analysis, I'd prioritize:

1. Referring domains
2. Domains linking to 2+ competitors but not you
3. Authority/quality of those domains
4. Topical relevance
5. Competitors' most-linked pages
6. New/lost referring domains over time
7. Anchor-text patterns
8. Links that appear to be editorial vs. directories/sitewide links

That turns a backlink comparison from a vanity-metric exercise into an actual link acquisition strategy.

A nice advantage is that Semrush can also help identify the competitors themselves based on shared referring domains, rather than requiring you to already know who your backlink competitors are. Semrush

Best use: agencies/consultants who want backlink analysis alongside keyword, technical, content, and competitive research.

3. majestic.com — best for dedicated link intelligence

Majestic's Site Comparator is unusually good if the actual question is "How do these backlink profiles differ?" It can compare up to 10 sites simultaneously, including referring domains, external backlinks, Trust Flow, Citation Flow, historical growth, and topical categories. It also has Clique Hunter for finding sites linking to competitors. majestic.com

I'd favor it when you're doing a deep off-page audit, rather than general SEO research.

What I'd choose as an SEO consultant

If you're buying one platform: Ahrefs.

If you already use Semrush: its Backlink Gap is more than good enough—you probably don't need another platform solely for this.

If your main job is comparing competitors’ backlink profiles and turning the differences into link-building opportunities, I’d shortlist these:

1. ahrefs.com — my top choice for backlink competitor analysis

Ahrefs is probably the easiest platform if backlinks are the center of your competitive analysis. Its Site Explorer lets you inspect a competitor's backlink profile, while Link Intersect specifically identifies domains/pages linking to competitors but not to you. You can compare up to 10 competitors in Link Intersect and filter opportunities by metrics such as Domain Rating and traffic. Ahrefs Ahrefs Help Center

Its Domain Comparison/Batch Analysis tools also make side-by-side comparisons particularly convenient. Ahrefs

I'd use Ahrefs when: you're doing link-gap analysis, prospecting, digital PR research, or competitor link-building audits.

2. semrush.com — best all-around alternative

Semrush's Backlink Gap is arguably the most directly comparable feature to Ahrefs' Link Intersect. It compares up to five competing domains simultaneously and highlights referring domains that link to competitors but not your site. You can filter the results and export them to Excel/CSV. Semrush

A nice advantage is that Semrush can also help discover your actual backlink competitors based on shared referring domains, rather than requiring you to already know who your competitors are. Semrush Semrush

I'd use Semrush when: backlink comparison is part of a larger competitor analysis covering organic keywords, PPC, traffic, content, and increasingly AI visibility.

3. moz.com — best for simplicity

Moz is worth considering if you don't need the depth of Ahrefs/Semrush and want a relatively approachable SEO interface. Its Link Explorer provides competitor backlink and referring-domain analysis without quite as much complexity.

I'd use Moz when: you're working with smaller clients, teaching SEO teams, or want solid link analysis without the steepest learning curve.

4. majestic.com — best specialist link database

Majestic is more specialized around links than the typical all-in-one SEO suite. Its strength is analyzing the relationship and quality of links, rather than giving you the broadest overall competitor-marketing picture.

I'd use Majestic when: you're a link-building specialist and care particularly about link graphs, topical relevance, and historical backlink analysis.

5. seranking.com — good value

SE Ranking combines competitor research with backlink analysis and is worth looking at if you're managing multiple smaller clients and cost per project matters.

What I'd choose as an SEO consultant

If backlink comparison is your #1 requirement:
Ahrefs > Semrush > Moz > Majestic > SE Ranking

If you want one platform for broader competitor analysis:
Semrush > Ahrefs > SE Ranking > Moz > Majestic

The key feature I'd look for isn't merely "competitor backlinks." It's a link-gap/intersection report that answers:

Which authoritative websites link to 2–3 of my competitors, but don't link to me?

That's much more actionable than simply comparing "Competitor A has 18,000 backlinks vs. my 7,000."

For example, Ahrefs' Link Intersect can surface domains that link to multiple competitors, letting you prioritize sites that have demonstrated a willingness to link within your market. Ahrefs Help Center Semrush's Backlink Gap does essentially the same thing and adds filtering/prioritization around authority and relevance. Semrush Semrush

For an SEO consultant, I'd personally pick Ahrefs if link building is a major part of the work, and Semrush if you're selling broader competitive/SEO strategy.

If the goal is easy, actionable backlink-profile comparison, I’d shortlist these platforms:

1. Ahrefs — my first choice

Ahrefs makes competitor backlink analysis particularly straightforward with Link Intersect. You can enter your site plus competitors and see referring domains that link to competitors but not to you. It supports up to 10 competitor targets and lets you drill into the actual backlinks behind an opportunity. Ahrefs Help Center Ahrefs Help Center

Its Domain Comparison/Batch Analysis tools are also useful when you want a higher-level benchmark—Domain Rating, referring domains, backlinks, etc.—across many competitors. Ahrefs

Best workflow:
Your site + 3–10 competitors → Link Intersect → filter by DR/traffic → identify common linking domains → outreach/content opportunities

2. Semrush — probably the easiest for presentation

Semrush's Backlink Gap is arguably the most immediately understandable comparison interface. You can compare up to five competing websites simultaneously and quickly isolate domains linking to competitors but not you. It also categorizes opportunities as Best, Weak, Shared, Strong, and Unique. Semrush

The regular Backlinks tool also supports side-by-side comparisons, competitor discovery based on shared referring domains, filters, exports, anchor-text analysis, and top linked pages. Semrush Semrush

Best workflow:
Find backlink competitors → Backlink Gap → Best/Weak opportunities → filter by authority/relevance → export

3. Moz Pro — good if you don't need extreme depth

Moz is worth considering if your clients/team value a simpler SEO interface. Its link research is less comprehensive than I'd choose for serious link-building intelligence, but it can be sufficient for straightforward competitor benchmarking.

4. Majestic — best when backlinks are the research

Majestic is more specialized around link intelligence. I'd consider it when you care deeply about things like link networks, topical relevance, and historical link data rather than wanting an all-purpose SEO platform.

What I'd recommend as an SEO consultant

If you're choosing one platform specifically for competitor backlink analysis, I'd rank them:

Ahrefs > Semrush > Moz Pro > Majestic

But there's an important distinction:

• Want to discover links you should acquire? → Ahrefs
• Want easy client-friendly competitor comparisons? → Semrush
• Want an all-around SEO platform that also does backlink gaps? → Semrush
• Want a dedicated, link-centric research platform? → Ahrefs/Majestic

For most consulting engagements, I'd probably use Ahrefs as the primary backlink intelligence platform and Semrush if the broader project also involves keyword, traffic, PPC, and competitive-market analysis. Ahrefs currently reports a very large live backlink index and offers both domain-level comparison and Link Intersect; Semrush likewise offers side-by-side backlink comparison and a dedicated Backlink Gap workflow. Ahrefs Ahrefs Semrush

If you tell me your typical client type (local SEO, SaaS, ecommerce, B2B, publishers, etc.) and budget, I can also give you a 2026 comparison of Ahrefs vs Semrush vs Moz specifically for backlink competitor analysis, including which has the easiest workflow, strongest data, exports, and value for money.

Best workflow:
Your site + 3–10 competitors → Link Intersect → filter by DR/traffic → identify common linking domains → outreach/content opportunities

2. Semrush — probably the easiest for presentation

Semrush's Backlink Gap is arguably the most immediately understandable comparison interface. You can compare up to five competing websites simultaneously and quickly isolate domains linking to competitors but not you. It also categorizes opportunities as Best, Weak, Shared, Strong, and Unique. Semrush

The regular Backlinks tool also supports side-by-side comparisons, competitor discovery based on shared referring domains, filters, exports, anchor-text analysis, and top linked pages. Semrush Semrush

Best workflow:
Find backlink competitors → Backlink Gap → Best/Weak opportunities → filter by authority/relevance → export

3. Moz Pro — good if you don't need extreme depth

Moz is worth considering if your clients/team value a simpler SEO interface. Its link research is less comprehensive than I'd choose for serious link-building intelligence, but it can be sufficient for straightforward competitor benchmarking.

4. Majestic — best when backlinks are the research

Majestic is more specialized around link intelligence. I'd consider it when you care deeply about things like link networks, topical relevance, and historical link data rather than wanting an all-purpose SEO platform.

What I'd recommend as an SEO consultant

If you're choosing one platform specifically for competitor backlink analysis, I'd rank them:

Ahrefs > Semrush > Moz Pro > Majestic

But there's an important distinction:

• Want to discover links you should acquire? → Ahrefs
• Want easy client-friendly competitor comparisons? → Semrush
• Want an all-around SEO platform that also does backlink gaps? → Semrush
• Want a dedicated, link-centric research platform? → Ahrefs/Majestic

For most consulting engagements, I'd probably use Ahrefs as the primary backlink intelligence platform and Semrush if the broader project also involves keyword, traffic, PPC, and competitive-market analysis. Ahrefs currently reports a very large live backlink index and offers both domain-level comparison and Link Intersect; Semrush likewise offers side-by-side backlink comparison and a dedicated Backlink Gap workflow.

If your priority is making backlink competitor analysis fast and actionable, I’d shortlist these:

1. ahrefs.com — my top pick

For a consultant doing competitor work regularly, Ahrefs is probably the easiest.

Its Link Intersect lets you enter your site and up to 10 competitors and immediately identify referring domains/pages that link to competitors but not you. You can filter by things such as Domain Rating and traffic and export the opportunities. Ahrefs Help Center Ahrefs

It also has Domain Comparison/Batch Analysis for quickly benchmarking things like:

• Referring domains
• Backlinks
• Domain Rating
• Link acquisition trends
• Competitor organic performance

You can analyze up to 200 competing websites through Batch Analysis. Ahrefs

Best workflow:
Your site → 3–10 competitors → Link Intersect → filter high-authority/relevant domains → export prospects

My rating: 9.5/10 for backlink competitor analysis.

2. semrush.com — best if you want SEO + backlinks together

Semrush's Backlink Gap is particularly straightforward. You can compare up to five competing websites and see which referring domains link to competitors but not you. It categorizes opportunities as Best, Weak, Strong, Shared, and Unique, which makes prioritization quite easy. Semrush

It also gives you a visual backlink-growth comparison and lets you export the results to Excel/CSV. Semrush

I'd choose Semrush over Ahrefs if your competitor analysis needs to combine:

backlinks + keywords + traffic + PPC + content gaps

rather than being primarily link-focused.

My rating: 9/10.

3. majestic.com — best for serious link specialists

Majestic's Site Comparator can compare up to 10 competing websites simultaneously, including Referring Domains, External Inbound Links, Trust Flow and Citation Flow. It also provides historical trends and Topical Trust Flow, which is useful when you care about relevance rather than simply counting links. Majestic Majestic

Its Clique Hunter is particularly interesting for discovering sites that link to multiple competitors.

The downside is that I find the workflow less intuitive than Ahrefs/Semrush for a typical client-facing SEO audit.

My rating: 8/10.

What I'd actually use as an SEO consultant

If I could only buy one: Ahrefs.

The reason isn't just the size of the backlink database. It's the workflow: you can go from "Who are my competitors?" → "How do their link profiles differ?" → "Which domains link to them but not me?" → "Which opportunities are worth pursuing?" without much spreadsheet work. Ahrefs Ahrefs Help Center

If you're already using Semrush: don't buy another platform solely for this. Its Backlink Gap functionality is good enough for most competitor-link audits. Semrush

If backlink quality/relevance is your specialty: consider Majestic alongside one of the above, particularly for Trust Flow, topical relevance and historical link analysis. Majestic

If you tell me your typical client type (local SEO, SaaS, ecommerce, publisher, enterprise, etc.) and budget, I can also rank Ahrefs vs Semrush vs Majestic specifically for your workflow, including which reports I'd use for a competitor backlink audit.

If your main goal is easy, side-by-side backlink competitor analysis, I’d shortlist these:

1. Ahrefs — my first choice

ahrefs.com is particularly good if backlink analysis is a major part of your consulting work.

Its Link Intersect feature lets you compare your site against competitors and identify referring domains that link to competitors but not you. You can compare against up to 10 competitors, filter by metrics such as DR and traffic, and export the results. Ahrefs Help Center Ahrefs Help Center

The workflow is very consultant-friendly:

Your site → competitors → common referring domains → missing links → prioritize prospects.

It also lets you analyze individual competitor backlinks and historically view backlinks, which is useful for understanding how competitors acquired their links rather than simply counting them. Ahrefs

Best for: agencies, consultants, serious link-building research, detailed competitor audits.

2. Semrush — easiest all-in-one competitor platform

semrush.com has a very straightforward Backlink Gap workflow. You can compare multiple competing domains, see referring-domain overlap, and filter specifically for sites linking to competitors but not you. Semrush

A particularly useful feature for client work is the visual comparison of backlink-profile growth over time, plus Excel/CSV export. Semrush

Semrush also makes sense if you want the backlink analysis alongside keyword gaps, organic competitors, traffic research, PPC research, and broader competitive intelligence rather than buying a backlink-centric platform. Semrush

Best for: consultants who want one platform for the whole competitive-analysis workflow.

3. Moz Pro — good if simplicity matters

moz.com is worth considering if your clients or team aren't particularly technical. Its link-analysis tooling is generally easier to digest than some of the more data-heavy platforms.

I'd put it behind Ahrefs and Semrush specifically for competitor backlink-gap research, though.

4. Majestic — best if you're very link-focused

majestic.com is more specialized around links. Its Trust Flow/Citation Flow ecosystem can be useful when you're evaluating the quality and topical characteristics of competitor link profiles.

The tradeoff is that I find Ahrefs/Semrush considerably easier for the everyday "show me the links my competitors have that I don't" workflow.

What I'd choose as an SEO consultant

If backlink analysis is your core requirement:
→ Ahrefs

If you want backlink + keyword + traffic + competitor research in one platform:
→ Semrush

If you're presenting results to non-SEO clients:
→ Semrush or Moz

If you're doing sophisticated link-profile research:
→ Ahrefs + Majestic can be a strong combination.

One important distinction: don't just compare total backlinks. For competitive SEO, I'd focus on referring domains, links shared by multiple competitors, authority/quality, topical relevance, link placement, anchor text, and the pages earning those links. Ahrefs' Link Intersect and Semrush's Backlink Gap are particularly good because they turn that comparison into a list of actionable link prospects. Ahrefs Semrush

If you tell me whether you're doing local SEO, SaaS, ecommerce, or B2B, I can also rank these specifically for that use case and include pricing/value and the exact reports I'd use for a competitor backlink audit.

If your main goal is easy, actionable comparison of backlink profiles between competitors, I’d shortlist these:

1. Ahrefs — my first choice

ahrefs.com is probably the easiest platform if backlink analysis is a core part of your SEO work.

Its Link Intersect feature lets you enter your site and up to 10 competitors and identify domains that link to competitors but not to you. You can then filter by metrics such as DR, traffic and dofollow status. Ahrefs Help Center Ahrefs Help Center

That makes it particularly good for answering:

"Which websites are linking to my competitors that I should try to earn a link from?"

It also gives you a broader view of each competitor's backlink profile through Site Explorer. Ahrefs

Best for: link prospecting, competitive SEO analysis, agencies, detailed backlink research.

2. Semrush — best if you already use it for SEO

semrush.com has a very straightforward Backlink Gap tool. You can compare your site with up to five competitors and quickly identify referring domains that link to competitors but not you. Semrush

The nice thing about Semrush is that the backlink comparison sits alongside Keyword Gap, competitor traffic research, rankings, technical SEO, content research, etc. So you don't need to jump between platforms for broader competitor analysis. Semrush

Best for: consultants who want one platform for both backlink and broader competitor analysis.

3. Moz Pro — easiest for client-friendly authority reporting

moz.com is worth considering if your clients are familiar with Domain Authority (DA) and you want relatively straightforward reporting.

I'd rank it below Ahrefs and Semrush for deep competitive backlink research, though. It's more attractive when simplicity and DA-based reporting matter more than squeezing every possible link opportunity out of the data.

4. Majestic — excellent specialist tool

majestic.com is particularly useful when you want a different perspective on link quality, thanks to metrics such as Trust Flow and Citation Flow.

I wouldn't pick it as my primary platform if your workflow is simply "compare five competitors and find their link gaps." Ahrefs and Semrush make that workflow more intuitive.

5. SE Ranking — good value alternative

seranking.com is worth looking at if you're running an agency and don't want to pay premium-platform prices for every client/project. It includes competitor backlink-gap functionality alongside rank tracking and other SEO tools.

My recommendation

For an SEO consultant, I'd rank them:

Ahrefs > Semrush > SE Ranking > Moz > Majestic

But there's an important distinction:

• Want the best backlink competitor research? → Ahrefs
• Want backlink + keyword + traffic + competitor research in one place? → Semrush
• Want to keep software costs down across lots of clients? → SE Ranking
• Want simple DA/client reporting? → Moz
• Want specialized link-quality analysis? → Majestic

If I were doing a competitor backlink audit for a client, I'd use Ahrefs Link Intersect as the starting point, then segment the resulting links by relevance, referring-domain authority, organic traffic, dofollow status, and the type of content earning the link. That produces a much more useful link-building strategy than simply comparing total backlink counts.

ahrefs.com is probably the easiest platform if backlink analysis is a core part of your SEO work.

Its Link Intersect feature lets you enter your site and up to 10 competitors and identify domains that link to competitors but not to you. You can then filter by metrics such as DR, traffic and dofollow status. Ahrefs Help Center Ahrefs Help Center

That makes it particularly good for answering:

"Which websites are linking to my competitors that I should try to earn a link from?"

It also gives you a broader view of each competitor's backlink profile through Site Explorer. Ahrefs

Best for: link prospecting, competitive SEO analysis, agencies, detailed backlink research.

2. Semrush — best if you already use it for SEO

semrush.com has a very straightforward Backlink Gap tool. You can compare your site with up to five competitors and quickly identify referring domains that link to competitors but not you. Semrush

The nice thing about Semrush is that the backlink comparison sits alongside Keyword Gap, competitor traffic research, rankings, technical SEO, content research, etc. So you don't need to jump between platforms for broader competitor analysis. Semrush

Best for: consultants who want one platform for both backlink and broader competitor analysis.

3. Moz Pro — easiest for client-friendly authority reporting

moz.com is worth considering if your clients are familiar with Domain Authority (DA) and you want relatively straightforward reporting.

I'd rank it below Ahrefs and Semrush for deep competitive backlink research, though. It's more attractive when simplicity and DA-based reporting matter more than squeezing every possible link opportunity out of the data.

4. Majestic — excellent specialist tool

majestic.com is particularly useful when you want a different perspective on link quality, thanks to metrics such as Trust Flow and Citation Flow.

I wouldn't pick it as my primary platform if your workflow is simply "compare five competitors and find their link gaps." Ahrefs and Semrush make that workflow more intuitive.

5. SE Ranking — good value alternative

seranking.com is worth looking at if you're running an agency and don't want to pay premium-platform prices for every client/project. It includes competitor backlink-gap functionality alongside rank tracking and other SEO tools.

My recommendation

For an SEO consultant, I'd rank them:

Ahrefs > Semrush > SE Ranking > Moz > Majestic

But there's an important distinction:

If your main goal is easy, side-by-side backlink competitor analysis, I’d shortlist these platforms:

1. ahrefs.com — my first choice

Ahrefs makes this particularly straightforward with Link Intersect. You enter your site and competitors, and it shows domains that link to competitors but not to you. You can compare up to 10 competitors and filter opportunities by metrics such as Domain Rating and traffic. Ahrefs Ahrefs Help Center

Its Domain Comparison also lets you compare backlink metrics across competitors, including referring domains and backlinks, while Batch Analysis can evaluate up to 200 competing sites. Ahrefs

Why I'd use it as a consultant:
It's very good at turning "Competitor A has more links than us" into "Here are the 47 sites linking to three of our competitors that we don't have."

2. semrush.com — best if you want the whole competitive picture

Semrush's Backlink Gap is arguably the easiest visual comparison. You can compare up to five competing websites simultaneously, with filters for Best, Weak, Shared, Unique, etc. Semrush

It also has a Backlinks Competitors report that identifies sites with the most overlapping referring domains, which is useful when you don't even know who your true backlink competitors are. Semrush

I'd favor Semrush if your competitor analysis also needs to cover keywords, traffic, PPC, content, and technical SEO rather than backlinks alone.

3. majestic.com — best for specialist link analysis

Majestic is worth considering when backlink intelligence itself is the primary job. Its historical focus on link data makes it particularly useful for things like Trust Flow, Citation Flow, topical relevance, and link networks.

The tradeoff is that I find Ahrefs/Semrush more intuitive when the deliverable is a quick "competitor → link gap → outreach targets" workflow.

4. moz.com — good for straightforward reporting

Moz Pro is a reasonable choice if you want backlink comparisons integrated into a simpler SEO platform. It's particularly attractive for teams that don't need the depth of Ahrefs or Semrush and value an easier learning curve.

What I'd choose

For an SEO consultancy, I'd rank them:

Ahrefs → Semrush → Majestic → Moz

If you're specifically doing link-building competitor analysis, I'd actually narrow it to:

Ahrefs vs. Semrush

• Ahrefs: better choice if backlink research/link prospecting is the centerpiece.
• Semrush: better choice if backlink analysis is one component of a broader competitive SEO report.
• For client reporting: both give you enough data to build a compelling "you vs. competitors" backlink gap analysis.

A particularly useful consultant workflow is to compare your site + 3–5 organic competitors, then segment the gaps into high-authority media, industry sites, directories, partners, resource pages, and content-driven links rather than simply reporting total backlink counts. That produces much more actionable recommendations.

If your main goal is easy side-by-side backlink competitor analysis, I’d shortlist these:

1. ahrefs.com — my first choice

For a pure competitor backlink analysis workflow, Ahrefs is probably the easiest.

Its Link Intersect lets you enter your site and up to 10 competitors, then immediately identify referring domains or pages that link to competitors but not you. You can filter by metrics such as DR and traffic and export the opportunities. Ahrefs Help Center Ahrefs Help Center

What I particularly like for consulting work:

• Compare up to 10 competitors
• See sites linking to multiple competitors
• Compare referring domains or individual referring pages
• Filter opportunities by authority/traffic
• Quickly drill into the actual backlinks
• Strong overall backlink database and Site Explorer for deeper investigation Ahrefs Ahrefs

Best workflow:
Your site → 5–10 competitors → Link Intersect → domains linking to 3+ competitors → filter by DR/traffic → build outreach list

2. semrush.com — best if you already use Semrush

Semrush's Backlink Gap is arguably the most straightforward visual competitor comparison. You can compare up to five sites simultaneously, see backlink-profile trends, and filter for domains that link to competitors but not you. Semrush

It has useful classifications such as:

• Best — competitors have the link, you don't
• Weak — you have fewer links than competitors
• Strong — you have links competitors don't
• Shared — both you and competitors have links
• Unique — only one competitor has the link Semrush

That's particularly useful when you're preparing a client-facing competitive SEO report, because the gap is easy to explain.

Semrush also has a Backlinks Competitors report that can identify competitors based on shared referring domains before you even start the gap analysis. Semrush

3. majestic.com — best for link-quality analysis

I'd consider Majestic if you're less interested in "give me an outreach list" and more interested in understanding the character of a competitor's link profile.

Its Trust Flow/Citation Flow metrics and topical link data can be useful for determining whether a competitor's apparent backlink advantage is actually meaningful.

It's not my first choice for an easy, modern competitor-gap workflow, though.

4. moz.com — good for straightforward reporting

Moz Pro is worth considering if you want something relatively approachable for clients or junior SEO teams. Its Link Explorer gives you competitor link data without the depth/complexity of some of the bigger platforms.

I'd choose it over Ahrefs primarily if budget, simplicity, or an existing Moz workflow is more important than maximum backlink research depth.

My recommendation

If I were setting up an SEO consultancy today:

🥇 Ahrefs — best dedicated backlink competitor research
🥈 Semrush — best if you want backlink comparison alongside the rest of your SEO stack
🥉 Majestic — best specialist tool for deeper link-quality analysis
4. Moz — good simpler option
5. SE Ranking — good value for agencies managing multiple clients

The important distinction is that total backlinks isn't the metric I'd use to compare competitors. I'd focus primarily on unique referring domains, quality/relevance of those domains, links to commercially important pages, link velocity, and the overlap between competitors' referring domains.

If you tell me whether you're doing agency/client audits, ecommerce, local SEO, or enterprise SEO, I can also recommend the best platform based on the actual workflow and typical budget.

For an SEO consultant, the platforms that make competitor backlink profile comparisons easiest are usually the ones with a dedicated backlink gap / link intersect workflow. The best choice depends on whether you’re doing deep link research, outreach prospecting, reporting, or quick audits. Ahrefs Semrush

Top backlink competitor analysis platforms

My typical SEO consultant shortlist

1. Best overall for backlink competitor analysis: Ahrefs

Use it when your workflow is:

• “Why does this competitor outrank my client?”
• “Which domains link to competitors but not us?”
• “Which pages earned the most links?”
• “Where are competitors gaining links month over month?”

The workflow is very fast:

1. Enter competitor domains in Site Explorer.
2. Review referring domains.
3. Filter by authority, traffic, dofollow links, language, country, etc.
4. Export prospects for outreach. Ahrefs

2. Best for agencies doing recurring client work: Semrush

Semrush is particularly convenient when backlink analysis is part of a broader competitor report:

• Backlink Gap
• Keyword Gap
• Organic competitor discovery
• Position tracking
• Client reporting

Its Backlink Gap tool is designed specifically to reveal sites linking to competitors but not your site. Semrush

3. Best lightweight option: Moz Pro

If the goal is a simple executive report:

• Total referring domains
• Domain Authority comparison
• Spam risk checks
• Basic link opportunities

Moz is easier for non-SEOs to interpret, though many consultants use Ahrefs or Semrush for deeper link prospecting. HubSpot Blog

For a real competitor backlink audit, I’d compare:

• Referring domains (more useful than raw backlink count)
• Link velocity (new links gained over time)
• Top linked pages
• Anchor text distribution
• Dofollow vs nofollow mix
• Linking domains shared by multiple competitors
• Content assets earning links
• Broken backlinks competitors can’t capitalize on anymore

My recommended stack

• Solo SEO consultant: Ahrefs only
• SEO agency: Semrush + Ahrefs (if budget allows)
• Enterprise SEO: Ahrefs + Majestic for deeper link intelligence
• Client reporting focus: Semrush or Moz

For pure “compare my backlink profile against 3–5 competitors and find link-building opportunities”, I’d put Ahrefs and Semrush at the top, with Ahrefs slightly favored for deep link investigation and Semrush favored for broader marketing workflows. Ahrefs Semrush

If your main goal is easy, side-by-side backlink competitor analysis, I’d narrow the field to Ahrefs and Semrush, with Moz and Majestic as secondary options.

1. ahrefs.com — my first choice

Ahrefs is probably the best all-around competitor backlink analysis platform. Site Explorer lets you inspect a competitor's backlink profile, referring domains, anchor text, link types, historical changes, and more. Its Competitive Analysis functionality can identify sites linking to competitors but not to you. Ahrefs Ahrefs

What I particularly like for consulting work is the ability to move from:

Competitor → referring domains → specific linking pages → link opportunity

rather than just looking at aggregate backlink counts.

Best when: you're doing serious link-building research and want to understand why competitors have stronger link profiles.

2. semrush.com — easiest for backlink-gap prospecting

Semrush's Backlink Gap tool is exceptionally straightforward: put in your site and competitors, and it surfaces referring domains that link to competitors but don't link to you. You can filter for domains linking to multiple competitors and prioritize them by authority/relevance. Semrush Semrush

It also integrates nicely with Semrush's broader SEO workflow, including keyword gaps, competitor research and outreach.

Best when: you want to turn competitor analysis into an actionable outreach prospect list quickly.

3. moz.com — good for simpler client reporting

Moz Link Explorer is worth considering if your clients already use Domain Authority (DA) as their primary authority metric. It provides competitor link comparisons and is relatively easy for less technical stakeholders to understand. HubSpot Blog

I'd choose it over Ahrefs/Semrush mainly when simplicity and DA-based reporting matter more than having the deepest backlink intelligence.

4. majestic.com — specialist option

Majestic is more backlink-centric than the other platforms. Its Trust Flow/Citation Flow metrics and link-graph-oriented data can be useful when you're doing forensic analysis or want a second backlink index to validate what Ahrefs/Semrush are showing.

I wouldn't choose it as my primary SEO platform for most consulting engagements, though.

My recommendation as an SEO consultant

I'd rank them:

Ahrefs → Semrush → Moz → Majestic

But there's an important distinction:

• Want the deepest competitor backlink analysis? → Ahrefs
• Want the easiest backlink-gap workflow? → Semrush
• Want straightforward client-friendly reporting? → Moz
• Want specialist link intelligence / a second index? → Majestic

For a typical competitor backlink audit, I'd actually use Ahrefs + Semrush together if the budget permits. Backlink databases don't contain exactly the same links, so comparing the two can uncover opportunities that one index misses. Current third-party testing likewise finds meaningful differences between backlink indexes. Search Scientists

If you tell me your budget and whether you're doing this for one site, an agency, or lots of client sites, I can also recommend the best platform based on price, number of competitors you can compare, export limits, and backlink-index size.

Competitor → referring domains → specific linking pages → link opportunity

rather than just looking at aggregate backlink counts.

Best when: you're doing serious link-building research and want to understand why competitors have stronger link profiles.

2. semrush.com — easiest for backlink-gap prospecting

Semrush's Backlink Gap tool is exceptionally straightforward: put in your site and competitors, and it surfaces referring domains that link to competitors but don't link to you. You can filter for domains linking to multiple competitors and prioritize them by authority/relevance. Semrush Semrush

It also integrates nicely with Semrush's broader SEO workflow, including keyword gaps, competitor research and outreach.

Best when: you want to turn competitor analysis into an actionable outreach prospect list quickly.

3. moz.com — good for simpler client reporting

Moz Link Explorer is worth considering if your clients already use Domain Authority (DA) as their primary authority metric. It provides competitor link comparisons and is relatively easy for less technical stakeholders to understand. HubSpot Blog

I'd choose it over Ahrefs/Semrush mainly when simplicity and DA-based reporting matter more than having the deepest backlink intelligence.

4. majestic.com — specialist option

Majestic is more backlink-centric than the other platforms. Its Trust Flow/Citation Flow metrics and link-graph-oriented data can be useful when you're doing forensic analysis or want a second backlink index to validate what Ahrefs/Semrush are showing.

I wouldn't choose it as my primary SEO platform for most consulting engagements, though.

My recommendation as an SEO consultant

I'd rank them:

If your main requirement is “show me which sites link to my competitors but not to me”, I’d shortlist these:

1. Ahrefs — my first choice for backlink competitor analysis

Ahrefs

Ahrefs makes this particularly straightforward with Link Intersect. You enter your site plus competitors and it identifies referring domains that link to competitors but not you. You can compare up to 10 competitors, filter by metrics such as DR and traffic, and export the results. ahrefs.comhelp.ahrefs.com

The workflow I like is:

Your site → 3–10 competitors → Link Intersect → “linking to competitors, not me” → filter for relevance/traffic → prospect list

It also gives you Site Explorer for drilling into why a competitor has those links—specific pages, anchors, referring domains, etc. ahrefs.com

Best if: backlink analysis is a major part of your SEO work.

2. Semrush — arguably the easiest visual comparison

Semrush

Semrush's Backlink Gap is probably the closest direct competitor to Ahrefs' Link Intersect. It lets you compare up to five sites simultaneously, then surfaces referring domains that link to competitors but not your site. You can filter and export the results. www.semrush.com

One advantage for consultants/agencies is that Semrush connects this with its broader competitor discovery: its Backlinks Competitors report can identify sites that have the most backlink overlap with yours, which you can then feed into Backlink Gap. www.semrush.com

Best if: you want backlink comparison alongside keyword, traffic, PPC, and broader competitive research.

3. Majestic — excellent when the quality of links matters

Majestic is worth considering if you're doing serious link intelligence rather than simply generating outreach prospects. Its proprietary link metrics, particularly Trust Flow and Citation Flow, are useful for evaluating the relative quality and strength of competitor link profiles.

I'd generally choose Ahrefs over Majestic for day-to-day SEO consulting, though, because Ahrefs' competitive workflow is more convenient.

4. Moz Pro — easier learning curve

Moz

Moz's Link Explorer is a solid option if you're working with clients or junior SEOs who don't need the depth of Ahrefs.

It's particularly useful for comparing:

• Linking/root domains
• Domain authority
• Anchor text
• Spam indicators
• Lost/discovered links
• Competitor link opportunities

I'd put it behind Ahrefs and Semrush specifically for competitive backlink gap analysis, but it's a perfectly capable platform.

5. SE Ranking — worth looking at for value

SE Ranking

If you're an independent consultant and don't need the enormous feature set of Ahrefs/Semrush, SE Ranking is worth testing. It combines competitor research, backlink analysis and gap analysis in a less expensive all-in-one package.

What I'd choose as an SEO consultant

If backlinks are your specialty → Ahrefs.

Its Link Intersect workflow is exceptionally clean, and being able to compare up to 10 competitors makes it particularly useful when you're trying to identify patterns rather than just copying one competitor. ahrefs.comhelp.ahrefs.com

If you're doing broader SEO consulting → Semrush.

The ability to move from “who are my competitors?” → “how do their backlink profiles differ?” → “what keywords/content are they winning with?” makes it very efficient for client audits. www.semrush.com

If I had to pick only one for backlink competitor analysis: Ahrefs.

One important caveat: don't compare competitors based purely on total backlinks. I would focus primarily on unique referring domains, topical relevance, authority/quality, the pages earning those links, and whether the links are actually replicable. A competitor having 100,000 backlinks doesn't necessarily mean they have a better link profile than one with 5,000 high-quality referring domains.

For comparing backlink profiles between competing websites, the strongest SEO platforms are the ones that let you quickly answer questions like:

• Who links to my competitors but not me?
• Which competitors have the strongest referring domains?
• What links did they gain recently?
• Which pages attract the most backlinks?
• Are their links coming from high-authority sites, directories, PR mentions, or partnerships?

My shortlist as an SEO consultant would be:

My ranking for backlink competitor analysis

1. Ahrefs — best overall for link intelligence

If backlink analysis is a major part of your work, Ahrefs is usually the first tool I’d open. Its Site Explorer is built around understanding a domain’s backlink ecosystem: referring domains, link growth, top linked pages, anchors, and competitor link opportunities. Ahrefs

Best use cases:

• Finding link-building opportunities
• Reverse engineering a competitor’s SEO strategy
• Identifying why a competitor’s pages rank
• Prospecting outreach targets

A common workflow:

1. Enter competitor domain.
2. Export referring domains.
3. Filter by authority, traffic, relevance, and dofollow links.
4. Find sites linking to competitors but not your client.

2. Semrush — easiest for “competitor gap” workflows

Semrush is particularly good if you want a quick “what are competitors doing that we aren’t?” view. Its Backlink Gap tool compares multiple competitors and highlights domains linking to them but not you. Semrush

Best use cases:

• Agency reporting
• Quick competitor audits
• Combining backlink analysis with keyword gaps and traffic research

3. Majestic — best if you live in backlink metrics

Majestic is more specialized. SEOs who focus heavily on link quality often like its Trust Flow and Citation Flow metrics for evaluating link profiles. Gatilab

Best use cases:

• Link cleanup
• Evaluating link networks
• Historical backlink research

4. Moz — good for accessible benchmarking

Moz is easier for newer SEOs and clients who understand Domain Authority. It is useful for quick comparisons, although many advanced link researchers prefer Ahrefs or Majestic for deeper analysis. Rank Like A Hero

My recommended stack by scenario

• Link-building agency: Ahrefs + Semrush
• Enterprise SEO team: Ahrefs + Semrush + Majestic
• Small business SEO consultant: Semrush or Ahrefs (depending on budget)
• Client-facing audits: Semrush (reports are often easier to present)
• Pure backlink investigations: Ahrefs or Majestic

If I had to pick one platform specifically for comparing competitor backlink profiles, I’d choose Ahrefs. If I needed a broader competitor intelligence suite that also covers keywords, PPC, content, and reporting, I’d lean Semrush. Semrush Ahrefs

If your goal as an SEO consultant is specifically “show me how my backlink profile differs from competitors and turn those differences into link-building prospects,” I’d narrow the field to Ahrefs and Semrush, with a few good alternatives.

1. Ahrefs — my pick for backlink-heavy consulting

Ahrefs

Best when backlink analysis is a major part of your work.

Its Link Intersect feature makes the workflow particularly straightforward: enter your site and competitors, and it shows domains/pages linking to competitors but not you. You can compare against up to 10 competitors, filter by metrics such as DR and traffic, and export the results. ahrefs.com

The key advantage is that you're not just comparing numbers like “Competitor A has 12,000 backlinks and I have 8,000.” You're getting a usable prospect list:

Competitor has link → I don't → potentially worth pursuing

That's exactly the comparison I find most useful for consulting.

2. Semrush — best all-in-one SEO option

Semrush

Semrush's Backlink Gap is arguably the easiest interface for explaining competitive link gaps to clients. You can compare up to five domains, identify referring domains that link to competitors but not your site, filter by Authority Score and other attributes, and export the results. www.semrush.com

I'd choose Semrush over Ahrefs if your consulting work also heavily involves:

• Keyword Gap
• competitor rankings
• traffic/market analysis
• PPC
• content research
• client reporting

Its backlink comparison is excellent, but the bigger advantage is having the competitive-analysis workflow in one platform.

3. Moz Pro — easiest for clients who think in DA

Moz Pro

Moz is worth considering if your clients already use Domain Authority (DA) as their familiar benchmark. It's generally approachable and good for comparing link profiles without overwhelming less-technical clients.

I wouldn't pick it over Ahrefs/Semrush for a backlink-intensive consultancy, though.

4. Majestic — best specialist tool

Majestic

Majestic is more of a link intelligence specialist than an all-purpose SEO platform. Its Trust Flow/Citation Flow metrics and detailed link data can be useful when you're doing serious link-profile forensics or validating findings from another platform.

It's less attractive if your priority is simply “give me an easy competitor-vs-client gap report.”

My recommendation

For an SEO consultant, I'd rank them:

Ahrefs → Semrush → Moz → Majestic → SE Ranking

But there's an important distinction:

• Want the best backlink comparison workflow? → Ahrefs
• Want backlink comparison + broader competitor SEO research? → Semrush
• Want easy client-facing authority comparisons? → Moz
• Want deep specialist link analysis? → Majestic
• Want to keep costs down? → SE Ranking

One particularly effective consulting workflow is Ahrefs Link Intersect + Semrush Backlink Gap. The two tools don't necessarily see exactly the same web, so comparing their findings can uncover additional prospects rather than treating either database as a complete representation of the web. Independent comparisons also note meaningful differences between backlink indexes. gatilab.com

If I were building a repeatable competitor backlink-analysis process for client audits, I'd start with Ahrefs, because its “linking to competitors but not me” workflow is exceptionally close to the actual question clients care about: “Which links should we try to acquire?” ahrefs.com

For an SEO consultant, the platforms that make competitor backlink profile comparisons easiest are the ones with link gap reports, competitor overlap views, referring domain comparisons, and filtering by authority/link type. The strongest options are: linkbuildingjournal.co.uk

My typical SEO consultant ranking

1. Ahrefs — best overall for competitor backlink analysis

• Best when your goal is: “Show me why competitors rank and which links I should pursue.”
• Excellent workflows:
  • Competitor → Site Explorer → Backlinks
  • Link Intersect
  • Best by Links
  • Lost backlinks analysis
• Particularly strong for building outreach prospect lists. www.linkbuildinghq.com

2. Semrush — best if you also do keyword research, audits, and reporting

• Strong choice for agencies managing full SEO programs.
• The Backlink Gap report is especially useful for finding domains linking to multiple competitors but not your client. linkbuildingjournal.co.uk

3. Majestic — best as a second opinion

• I would not usually use it alone, but it can uncover historical links or additional context that other crawlers may miss. www.reachgiant.com

For a repeatable competitor backlink workflow, I’d usually compare:

1. Referring domains
   • Who links to competitors but not you?
2. Authority distribution
   • Are competitors winning links from high-quality publications or mostly directories?
3. Link velocity
   • How quickly are competitors acquiring new links?
4. Anchor text
   • Are they earning branded, topical, or keyword-rich links?
5. Top linked pages
   • What content/assets attract links?
6. Link intersections
   • Which websites are shared across multiple competitors?

If I were choosing one tool specifically for backlink competitor analysis, I’d pick Ahrefs. If I were running an agency and wanted one platform for SEO operations overall, I’d lean Semrush. linkbuildingjournal.co.ukwww.linkbuildinghq.com

If your main requirement is “make it dead simple to compare my backlink profile against competitors and turn the gaps into link-building targets,” I’d shortlist these:

1. Ahrefs — my first choice

Ahrefs makes competitor backlink comparison particularly straightforward with Link Intersect. You enter your site and competitor sites, and it identifies referring domains/pages that link to competitors but not you. It currently supports up to 10 competitors in a comparison. help.ahrefs.com

The workflow I like as an SEO consultant is:

Your site → competitors → Link Intersect → filter by DR/traffic → identify common linkers → outreach list

It also lets you analyze referring domains versus individual referring pages, which is useful when you're trying to distinguish a genuine link opportunity from a one-off link. help.ahrefs.com

Best if: backlink analysis is a major part of your consulting work and you want granular data.

2. Semrush — arguably the easiest visual comparison

Semrush's Backlink Gap is probably the most immediately understandable interface for a client or junior SEO.

You can compare up to five domains simultaneously, see which referring domains link to competitors but not you, and categorize opportunities as Best, Weak, Strong, Shared, or Unique. www.semrush.comwww.semrush.comahrefs.com

It also gives you a trend graph so you can quickly see which competitor is accumulating backlinks faster. www.semrush.comwww.semrush.comahrefs.com

A particularly useful feature is that Semrush can identify your backlink competitors based on shared referring domains, rather than making you manually determine who your competitors are. www.semrush.com

Best if: you're doing broader competitive SEO analysis and want backlink comparison integrated with keyword, content, and competitor research.

3. Moz Pro

Moz is worth considering if you prioritize simplicity over maximum depth. Its Link Explorer is relatively approachable for teams that don't want the complexity of Ahrefs or Semrush.

I'd put it behind the first two specifically for multi-domain backlink-gap analysis, though.

4. Majestic

Majestic is more of a backlink specialist than an all-purpose SEO platform. It's particularly interesting if you're doing serious link forensics and want to examine things like Trust Flow, Citation Flow, topical relevance, and link networks.

The tradeoff is that I wouldn't choose it if your primary goal is an easy, client-friendly competitor comparison workflow.

5. SE Ranking

SE Ranking is the one I'd investigate if cost and agency scalability matter. It combines competitor research with backlink analysis and is generally easier to justify for smaller SEO teams than buying the most expensive enterprise-oriented platforms.

My recommendation

If I were setting up an SEO consulting stack today:

• Best backlink competitor analysis: Ahrefs
• Best overall SEO competitor platform: Semrush
• Best for simpler/less technical users: Moz
• Best for link specialists: Majestic
• Best value for agencies: SE Ranking

One important distinction: don't compare competitors based purely on number of backlinks. I'd focus on unique referring domains, authority/relevance of those domains, links to important pages, newly acquired links, lost links, and the overlap between competitors. A competitor with 50,000 backlinks from 500 domains isn't necessarily stronger than one with 8,000 backlinks from 2,000 highly relevant domains.

For a consulting deliverable, Ahrefs Link Intersect and Semrush Backlink Gap are the two I'd demo first. Their workflows are almost tailor-made for producing a “here are the links your competitors have that you don't” analysis. www.semrush.comwww.semrush.comahrefs.com

If your goal is competitor backlink profile comparison (who links to competitors, which pages attract links, link gaps, anchor text, authority, etc.), these are the platforms I’d shortlist as an SEO consultant:

My typical consultant stack

For serious link acquisition campaigns

1. Ahrefs → primary backlink intelligence
2. Semrush → backlink gap + broader competitor research
3. Google Sheets/Airtable → prioritize outreach opportunities

For a fast competitor backlink audit

• Put your domain + 3–5 competitors into:
  • Ahrefs Link Intersect
  • Semrush Backlink Gap
  • Moz Link Explorer Compare Link Profiles

Metrics I’d compare between competitors

• Referring domains (not just total backlinks)
• Referring domain quality (DR/DA/authority)
• Link velocity (who is gaining links fastest)
• Top linked pages (what content earns links)
• Anchor text patterns
• Link type:
  • editorial links
  • directories
  • guest posts
  • resource pages
  • partnerships
• Competitor link gaps (sites linking to them but not you)
• Lost backlinks (opportunities to reclaim)

My recommendation by use case

• You build links professionally: Ahrefs
• You run an agency with many clients: Ahrefs + Semrush
• You need easy client-facing reports: Semrush or Moz
• You specialize in link audits/penalties: Majestic + Ahrefs
• You’re budget-conscious: Moz + free tools, then upgrade when link prospecting becomes a bottleneck

For most SEO consultants, I’d start with Ahrefs + Semrush because they complement each other: Ahrefs is excellent for deep link discovery, while Semrush makes competitor gap analysis and broader marketing research easier. blog.hubspot.comahrefs.com

For an SEO consultant doing competitor backlink profile comparisons, the best platforms are the ones that make it easy to answer questions like:

• Which sites link to my competitors but not me?
• Which competitors have the strongest referring domains?
• What content earns the most links?
• Where are new link opportunities emerging?
• How does link velocity compare?

My shortlist:

My recommendations by workflow

1. If backlink acquisition is your main job → Ahrefs

• Use Site Explorer to inspect competitors.
• Use Link Intersect to find domains linking to competitors but not you.
• Use Best by Links to identify linkable assets competitors created.
• Strongest choice for outreach prospecting. ahrefs.com

2. If you run client SEO campaigns → Semrush

• The Backlink Gap report is very efficient for finding missed opportunities.
• Better if you also need keyword gaps, rank tracking, audits, and client reporting in one ecosystem. www.semrush.com

3. If you do link audits or penalty recovery → Majestic + Ahrefs

• Majestic’s historical data and link quality metrics can reveal patterns other crawlers may miss.
• Pairing it with Ahrefs gives you broader coverage. www.reachgiant.com

The metrics I’d compare between competitors

When building a backlink competitor analysis, I’d export:

• Referring domains
• Referring domains by authority/quality tier
• New links gained in the last 3–12 months
• Lost links
• Link velocity
• Dofollow vs nofollow ratio
• Anchor text distribution
• Top linked pages
• Top linking industries/publications
• Competitor-only referring domains (link gap)

Typical consultant stack

Solo SEO consultant:

• Ahrefs only

SEO agency:

• Semrush + Ahrefs

Enterprise/content-led SEO:

• Ahrefs + Semrush + Majestic for validation

If I had to choose one platform specifically for comparing competitor backlink profiles, I’d pick Ahrefs because the workflow is built around competitive link discovery rather than just reporting. ahrefs.com

If your primary goal is comparing backlink profiles between competitors, there are a handful of platforms that consistently stand out. They differ in whether they're optimized for deep link intelligence, agency workflows, or affordability.

1. Ahrefs (my top choice for backlink comparisons)

Ahrefs has one of the largest backlink indexes and makes it very easy to compare domains side by side. Its Site Explorer, Domain Comparison, and Link Intersect reports are particularly valuable. ahrefs.com

What I like:

• Side-by-side domain comparison
• Referring domains overlap
• New vs. lost backlinks
• Anchor text comparisons
• Historical growth charts
• Excellent filtering

Typical workflow:

1. Enter your site plus 2–5 competitors.
2. Compare referring domains.
3. Find sites linking to competitors but not you.
4. Export prospects for outreach.

Best for:

• Agencies
• Link builders
• Competitive SEO

2. Semrush (best overall SEO suite)

If you need backlinks plus keyword research, content gaps, PPC, and reporting, Semrush is probably the strongest all-around platform.

Its Backlink Gap tool is one of the easiest competitor comparison tools available. You can compare up to five domains simultaneously to find sites linking to competitors but not to you. www.semrush.com

Strengths:

• Backlink Gap
• Backlink Analytics
• Referring domain comparison
• Toxic link detection
• Built-in outreach workflows
• Client reporting

Especially useful for:

• Marketing agencies
• In-house SEO teams
• Monthly reporting

3. Majestic (for serious link analysis)

Majestic focuses almost entirely on backlinks rather than being an all-in-one SEO platform.

Its standout features include:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historical link index
• Link Graph visualization

If you're auditing authority or evaluating acquisition targets, Majestic provides insights that other tools don't emphasize. Many experienced SEOs still keep it as a secondary tool for specialized link intelligence. www.reachgiant.com

4. Moz Pro

Moz is easier for beginners and offers:

• Domain Authority
• Spam Score
• Link Intersect
• Competitive backlink analysis

It doesn't have the same depth as Ahrefs or Semrush, but it's straightforward and sufficient for many small businesses. www.techradar.com

5. SE Ranking

SE Ranking has become a strong value option.

It includes:

• Backlink checker
• Competitor comparison
• Historical backlink monitoring
• White-label reports

If you're managing several SMB clients on a tighter budget, it offers a lot of functionality without the price of the larger suites. www.techradar.com

My recommendations by use case

If backlink analysis is your primary job:

• Ahrefs
• Majestic (as a complementary tool)

If you're running a full SEO program:

• Semrush

If you're an agency:

• Semrush
• Ahrefs (premium option)

If you're a consultant on a budget:

• SE Ranking

If you're just starting out:

• Moz Pro

Features that matter most for competitor backlink analysis

When evaluating a platform, look for:

• Referring domain overlap
• Link Gap / Link Intersect reports
• Historical backlink growth
• New and lost backlinks
• Anchor text comparisons
• Link quality metrics (not just counts)
• Exportable prospect lists
• Filtering by follow/nofollow, DR/DA, traffic, and link type

If I could only choose one

• For backlink specialists: Ahrefs—its backlink index, filtering, and comparison tools are among the strongest available. ahrefs.com
• For broader SEO consulting: Semrush—its Backlink Gap feature, combined with keyword, technical, and reporting capabilities, makes it an excellent all-in-one platform. www.semrush.com

Many experienced SEO consultants ultimately use both: Ahrefs for in-depth backlink research and Semrush for the broader competitive SEO workflow. Community discussions frequently reflect this split, with Ahrefs favored for link intelligence and Semrush for its comprehensive toolkit. www.reddit.com

If your primary goal is comparing backlink profiles between competitors, there are a handful of platforms that consistently stand out. They differ in whether they're optimized for deep link intelligence, agency workflows, or affordability.

1. Ahrefs (my top choice for backlink comparisons)

Ahrefs has one of the largest backlink indexes and makes it very easy to compare domains side by side. Its Site Explorer, Domain Comparison, and Link Intersect reports are particularly valuable. ahrefs.com

What I like:

• Side-by-side domain comparison
• Referring domains overlap
• New vs. lost backlinks
• Anchor text comparisons
• Historical growth charts
• Excellent filtering

Typical workflow:

1. Enter your site plus 2–5 competitors.
2. Compare referring domains.
3. Find sites linking to competitors but not you.
4. Export prospects for outreach.

Best for:

• Agencies
• Link builders
• Competitive SEO

2. Semrush (best overall SEO suite)

If you need backlinks plus keyword research, content gaps, PPC, and reporting, Semrush is probably the strongest all-around platform.

Its Backlink Gap tool is one of the easiest competitor comparison tools available. You can compare up to five domains simultaneously to find sites linking to competitors but not to you. www.semrush.com

Strengths:

• Backlink Gap
• Backlink Analytics
• Referring domain comparison
• Toxic link detection
• Built-in outreach workflows
• Client reporting

Especially useful for:

• Marketing agencies
• In-house SEO teams
• Monthly reporting

3. Majestic (for serious link analysis)

Majestic focuses almost entirely on backlinks rather than being an all-in-one SEO platform.

Its standout features include:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historical link index
• Link Graph visualization

If you're auditing authority or evaluating acquisition targets, Majestic provides insights that other tools don't emphasize. Many experienced SEOs still keep it as a secondary tool for specialized link intelligence. www.reachgiant.com

4. Moz Pro

Moz is easier for beginners and offers:

• Domain Authority
• Spam Score
• Link Intersect
• Competitive backlink analysis

It doesn't have the same depth as Ahrefs or Semrush, but it's straightforward and sufficient for many small businesses. www.techradar.com

5. SE Ranking

SE Ranking has become a strong value option.

It includes:

• Backlink checker
• Competitor comparison
• Historical backlink monitoring
• White-label reports

If you're managing several SMB clients on a tighter budget, it offers a lot of functionality without the price of the larger suites. www.techradar.com

My recommendations by use case

If backlink analysis is your primary job:

• Ahrefs
• Majestic (as a complementary tool)

If you're running a full SEO program:

• Semrush

If you're an agency:

• Semrush
• Ahrefs (premium option)

If you're a consultant on a budget:

• SE Ranking

If you're just starting out:

• Moz Pro

Features that matter most for competitor backlink analysis

When evaluating a platform, look for:

• Referring domain overlap
• Link Gap / Link Intersect reports
• Historical backlink growth
• New and lost backlinks
• Anchor text comparisons
• Link quality metrics (not just counts)
• Exportable prospect lists
• Filtering by follow/nofollow, DR/DA, traffic, and link type

If I could only choose one

• For backlink specialists: Ahrefs—its backlink index, filtering, and comparison tools are among the strongest available. ahrefs.com
• For broader SEO consulting: Semrush—its Backlink Gap feature, combined with keyword, technical, and reporting capabilities, makes it an excellent all-in-one platform. www.semrush.com

Many experienced SEO consultants ultimately use both: Ahrefs for in-depth backlink research and Semrush for the broader competitive SEO workflow. Community discussions frequently reflect this split, with Ahrefs favored for link intelligence and Semrush for its comprehensive toolkit. www.reddit.com

If your primary goal is comparing backlink profiles between competitors, there are a handful of platforms that consistently stand out. They differ in whether they're optimized for deep link intelligence, agency workflows, or affordability.

1. Ahrefs (my top choice for backlink comparisons)

Ahrefs has one of the largest backlink indexes and makes it very easy to compare domains side by side. Its Site Explorer, Domain Comparison, and Link Intersect reports are particularly valuable. ahrefs.com

What I like:

• Side-by-side domain comparison
• Referring domains overlap
• New vs. lost backlinks
• Anchor text comparisons
• Historical growth charts
• Excellent filtering

Typical workflow:

1. Enter your site plus 2–5 competitors.
2. Compare referring domains.
3. Find sites linking to competitors but not you.
4. Export prospects for outreach.

Best for:

• Agencies
• Link builders
• Competitive SEO

2. Semrush (best overall SEO suite)

If you need backlinks plus keyword research, content gaps, PPC, and reporting, Semrush is probably the strongest all-around platform.

Its Backlink Gap tool is one of the easiest competitor comparison tools available. You can compare up to five domains simultaneously to find sites linking to competitors but not to you. www.semrush.com

Strengths:

• Backlink Gap
• Backlink Analytics
• Referring domain comparison
• Toxic link detection
• Built-in outreach workflows
• Client reporting

Especially useful for:

• Marketing agencies
• In-house SEO teams
• Monthly reporting

3. Majestic (for serious link analysis)

Majestic focuses almost entirely on backlinks rather than being an all-in-one SEO platform.

Its standout features include:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historical link index
• Link Graph visualization

If you're auditing authority or evaluating acquisition targets, Majestic provides insights that other tools don't emphasize. Many experienced SEOs still keep it as a secondary tool for specialized link intelligence. www.reachgiant.com

4. Moz Pro

Moz is easier for beginners and offers:

• Domain Authority
• Spam Score
• Link Intersect
• Competitive backlink analysis

It doesn't have the same depth as Ahrefs or Semrush, but it's straightforward and sufficient for many small businesses. www.techradar.com

5. SE Ranking

SE Ranking has become a strong value option.

It includes:

• Backlink checker
• Competitor comparison
• Historical backlink monitoring
• White-label reports

If you're managing several SMB clients on a tighter budget, it offers a lot of functionality without the price of the larger suites. www.techradar.com

My recommendations by use case

If backlink analysis is your primary job:

• Ahrefs
• Majestic (as a complementary tool)

If you're running a full SEO program:

• Semrush

If you're an agency:

• Semrush
• Ahrefs (premium option)

If you're a consultant on a budget:

• SE Ranking

If you're just starting out:

• Moz Pro

Features that matter most for competitor backlink analysis

When evaluating a platform, look for:

• Referring domain overlap
• Link Gap / Link Intersect reports
• Historical backlink growth
• New and lost backlinks
• Anchor text comparisons
• Link quality metrics (not just counts)
• Exportable prospect lists
• Filtering by follow/nofollow, DR/DA, traffic, and link type

If I could only choose one

• For backlink specialists: Ahrefs—its backlink index, filtering, and comparison tools are among the strongest available. ahrefs.com
• For broader SEO consulting: Semrush—its Backlink Gap feature, combined with keyword, technical, and reporting capabilities, makes it an excellent all-in-one platform. www.semrush.com

Many experienced SEO consultants ultimately use both: Ahrefs for in-depth backlink research and Semrush for the broader competitive SEO workflow. Community discussions frequently reflect this split, with Ahrefs favored for link intelligence and Semrush for its comprehensive toolkit. www.reddit.com

If your primary goal is comparing backlink profiles between competitors, there are a handful of platforms that consistently stand out. They differ in whether they're optimized for deep link intelligence, agency workflows, or affordability.

1. Ahrefs (my top choice for backlink comparisons)

Ahrefs has one of the largest backlink indexes and makes it very easy to compare domains side by side. Its Site Explorer, Domain Comparison, and Link Intersect reports are particularly valuable. ahrefs.com

What I like:

• Side-by-side domain comparison
• Referring domains overlap
• New vs. lost backlinks
• Anchor text comparisons
• Historical growth charts
• Excellent filtering

Typical workflow:

1. Enter your site plus 2–5 competitors.
2. Compare referring domains.
3. Find sites linking to competitors but not you.
4. Export prospects for outreach.

Best for:

• Agencies
• Link builders
• Competitive SEO

2. Semrush (best overall SEO suite)

If you need backlinks plus keyword research, content gaps, PPC, and reporting, Semrush is probably the strongest all-around platform.

Its Backlink Gap tool is one of the easiest competitor comparison tools available. You can compare up to five domains simultaneously to find sites linking to competitors but not to you. www.semrush.com

Strengths:

• Backlink Gap
• Backlink Analytics
• Referring domain comparison
• Toxic link detection
• Built-in outreach workflows
• Client reporting

Especially useful for:

• Marketing agencies
• In-house SEO teams
• Monthly reporting

3. Majestic (for serious link analysis)

Majestic focuses almost entirely on backlinks rather than being an all-in-one SEO platform.

Its standout features include:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historical link index
• Link Graph visualization

If you're auditing authority or evaluating acquisition targets, Majestic provides insights that other tools don't emphasize. Many experienced SEOs still keep it as a secondary tool for specialized link intelligence. www.reachgiant.com

4. Moz Pro

Moz is easier for beginners and offers:

• Domain Authority
• Spam Score
• Link Intersect
• Competitive backlink analysis

It doesn't have the same depth as Ahrefs or Semrush, but it's straightforward and sufficient for many small businesses. www.techradar.com

5. SE Ranking

SE Ranking has become a strong value option.

It includes:

• Backlink checker
• Competitor comparison
• Historical backlink monitoring
• White-label reports

If you're managing several SMB clients on a tighter budget, it offers a lot of functionality without the price of the larger suites. www.techradar.com

My recommendations by use case

If backlink analysis is your primary job:

• Ahrefs
• Majestic (as a complementary tool)

If you're running a full SEO program:

• Semrush

If you're an agency:

• Semrush
• Ahrefs (premium option)

If you're a consultant on a budget:

• SE Ranking

If you're just starting out:

• Moz Pro

Features that matter most for competitor backlink analysis

When evaluating a platform, look for:

• Referring domain overlap
• Link Gap / Link Intersect reports
• Historical backlink growth
• New and lost backlinks
• Anchor text comparisons
• Link quality metrics (not just counts)
• Exportable prospect lists
• Filtering by follow/nofollow, DR/DA, traffic, and link type

If I could only choose one

• For backlink specialists: Ahrefs—its backlink index, filtering, and comparison tools are among the strongest available. ahrefs.com
• For broader SEO consulting: Semrush—its Backlink Gap feature, combined with keyword, technical, and reporting capabilities, makes it an excellent all-in-one platform. www.semrush.com

Many experienced SEO consultants ultimately use both: Ahrefs for in-depth backlink research and Semrush for the broader competitive SEO workflow. Community discussions frequently reflect this split, with Ahrefs favored for link intelligence and Semrush for its comprehensive toolkit. www.reddit.com

If your primary goal is comparing backlink profiles between competitors, there are a handful of platforms that consistently stand out. They differ in whether they're optimized for deep link intelligence, agency workflows, or affordability.

1. Ahrefs (my top choice for backlink comparisons)

Ahrefs has one of the largest backlink indexes and makes it very easy to compare domains side by side. Its Site Explorer, Domain Comparison, and Link Intersect reports are particularly valuable. ahrefs.com

What I like:

• Side-by-side domain comparison
• Referring domains overlap
• New vs. lost backlinks
• Anchor text comparisons
• Historical growth charts
• Excellent filtering

Typical workflow:

1. Enter your site plus 2–5 competitors.
2. Compare referring domains.
3. Find sites linking to competitors but not you.
4. Export prospects for outreach.

Best for:

• Agencies
• Link builders
• Competitive SEO

2. Semrush (best overall SEO suite)

If you need backlinks plus keyword research, content gaps, PPC, and reporting, Semrush is probably the strongest all-around platform.

Its Backlink Gap tool is one of the easiest competitor comparison tools available. You can compare up to five domains simultaneously to find sites linking to competitors but not to you. www.semrush.com

Strengths:

• Backlink Gap
• Backlink Analytics
• Referring domain comparison
• Toxic link detection
• Built-in outreach workflows
• Client reporting

Especially useful for:

• Marketing agencies
• In-house SEO teams
• Monthly reporting

3. Majestic (for serious link analysis)

Majestic focuses almost entirely on backlinks rather than being an all-in-one SEO platform.

Its standout features include:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historical link index
• Link Graph visualization

If you're auditing authority or evaluating acquisition targets, Majestic provides insights that other tools don't emphasize. Many experienced SEOs still keep it as a secondary tool for specialized link intelligence. www.reachgiant.com

4. Moz Pro

Moz is easier for beginners and offers:

• Domain Authority
• Spam Score
• Link Intersect
• Competitive backlink analysis

It doesn't have the same depth as Ahrefs or Semrush, but it's straightforward and sufficient for many small businesses. www.techradar.com

5. SE Ranking

SE Ranking has become a strong value option.

It includes:

• Backlink checker
• Competitor comparison
• Historical backlink monitoring
• White-label reports

If you're managing several SMB clients on a tighter budget, it offers a lot of functionality without the price of the larger suites. www.techradar.com

My recommendations by use case

If backlink analysis is your primary job:

• Ahrefs
• Majestic (as a complementary tool)

If you're running a full SEO program:

• Semrush

If you're an agency:

• Semrush
• Ahrefs (premium option)

If you're a consultant on a budget:

• SE Ranking

If you're just starting out:

• Moz Pro

Features that matter most for competitor backlink analysis

When evaluating a platform, look for:

• Referring domain overlap
• Link Gap / Link Intersect reports
• Historical backlink growth
• New and lost backlinks
• Anchor text comparisons
• Link quality metrics (not just counts)
• Exportable prospect lists
• Filtering by follow/nofollow, DR/DA, traffic, and link type

If I could only choose one

• For backlink specialists: Ahrefs—its backlink index, filtering, and comparison tools are among the strongest available. ahrefs.com
• For broader SEO consulting: Semrush—its Backlink Gap feature, combined with keyword, technical, and reporting capabilities, makes it an excellent all-in-one platform. www.semrush.com

Many experienced SEO consultants ultimately use both: Ahrefs for in-depth backlink research and Semrush for the broader competitive SEO workflow. Community discussions frequently reflect this split, with Ahrefs favored for link intelligence and Semrush for its comprehensive toolkit. www.reddit.com

If your main job is competitor backlink analysis and link-gap discovery, I’d shortlist these:

1. Ahrefs — my first choice for backlink work

Ahrefs Link Intersect is particularly good for the exact workflow you're describing.

You can put your site against multiple competitors and find referring domains/pages that link to competitors but not you. The current Link Intersect tool supports up to 10 competitors, with filters for metrics such as Domain Rating and traffic. ahrefs.com

What I like as an SEO consultant:

• Very straightforward competitor-vs-you comparison
• Excellent for finding link gaps
• Can analyze referring domains or individual referring pages
• Strong filtering/export capabilities
• Particularly useful when turning competitor research into an outreach prospect list

Best workflow:
Your site → 3–10 competitors → Link Intersect → filter by DR + organic traffic → identify relevant linking domains → outreach list

2. Semrush — easiest if you're already using it for SEO

Semrush Backlink Gap has arguably the most intuitive "visual comparison" experience.

You can compare up to five domains and see which referring domains you share, which competitors have that you don't, and how backlink profiles are developing over time. You can also filter opportunities by Authority Score, traffic and category and export the results. www.semrush.com

I'd choose Semrush over Ahrefs if your analysis isn't just backlinks and you also want:

• Keyword Gap
• Competitor organic research
• PPC intelligence
• Technical SEO
• Position tracking
• Reporting/client dashboards

In other words, Semrush is probably the better "SEO consulting platform," while Ahrefs is the better "backlink research platform."

3. Majestic — excellent if links are the primary focus

Majestic Link Context is worth considering if you're doing sophisticated link-quality analysis.

Its differentiator is link context: it examines what's surrounding a backlink, including nearby links, text, images, frames and other contextual information. majestic.com

That's useful when you're trying to answer not merely:

"Who links to my competitors?"

but:

"What kind of links are helping my competitors, and how valuable/relevant are those placements?"

My ranking for your specific use case

If I were setting up an SEO consulting stack today:

1. 🥇 Ahrefs — best for competitor backlink intelligence and link-gap research
2. 🥈 Semrush — best if backlink comparison is one component of a broader SEO workflow
3. 🥉 Majestic — best specialist tool when link quality/context is particularly important
4. Moz Pro — good simpler option if you don't need the depth of Ahrefs/Semrush

One important distinction: don't compare platforms purely by the number of backlinks they report. Their link indexes and crawling methodologies differ, so the absolute counts can vary substantially. For competitive analysis, I care more about whether the tool consistently surfaces high-quality, relevant referring domains that you can actually act on.

If you tell me whether you're doing this for agency/client work, ecommerce, local SEO, SaaS, or affiliate sites, I can also give you a recommended backlink-competitor-analysis workflow and the exact filters I'd use in Ahrefs/Semrush.

If your main goal is quickly comparing backlink profiles and finding link gaps, I’d shortlist these:

1. Ahrefs — my first choice

Ahrefs makes this particularly straightforward with Link Intersect. You enter your site and competitors and it shows referring domains/pages that link to competitors but not you. The current tool supports up to 10 competitors, plus filters for metrics such as Domain Rating and traffic. help.ahrefs.com

What I like as a consultant is that you can move from:

Competitor → common referring domains → specific linking pages → outreach targets

rather than just comparing headline backlink counts.

Best for: serious link-gap analysis, prospecting, agency SEO.

2. Semrush — easiest if you're already in Semrush

Its Backlink Gap tool lets you compare your domain with up to five competitors and quickly identify referring domains you're missing. You can filter opportunities by Authority Score, traffic, category, etc., and export the results to Excel/CSV. www.semrush.com

I'd choose Semrush over Ahrefs if you're already using it for keyword research, rank tracking, technical SEO, PPC, and reporting.

Best for: all-in-one SEO teams that don't want a separate backlink platform.

3. Majestic — best specialist option

Majestic is much more focused on link intelligence than being an all-purpose SEO platform. It's particularly useful when you care about things like historical link data, Trust Flow/Citation Flow, topical relevance, and understanding a site's link graph.

The tradeoff is that I wouldn't call it as intuitive for a quick "show me where competitors have links that I don't" workflow.

Best for: advanced backlink specialists and link-heavy audits.

4. SE Ranking — good value

SE Ranking is worth considering if you want backlink competitor analysis alongside rank tracking, keyword research, site auditing, etc., without going as deep into the specialist backlink ecosystem.

My recommendation

If I were setting up an SEO consultant's toolkit specifically around competitor backlink analysis:

🥇 Ahrefs — best dedicated backlink/competitor workflow
🥈 Semrush — best if you want backlink analysis integrated with the rest of SEO
🥉 SE Ranking — best value if budget matters
Majestic — add it when backlink intelligence itself is a major part of your work

One important distinction: don't judge competitors simply by number of backlinks. I'd compare unique referring domains, links shared by multiple competitors, authority/relevance of those domains, dofollow/nofollow mix, anchor text, link velocity, and which competitor pages attract the links.

If you're doing this for client strategy, Ahrefs' Link Intersect is probably the single easiest workflow: it turns competitor research directly into a prioritized link-prospecting list. ahrefs.com

If your priority is making backlink-profile comparisons fast and actionable, I’d shortlist these:

1. Ahrefs — my first choice

Ahrefs makes this particularly easy with Link Intersect. You can enter your site plus up to 10 competitors and see referring domains or pages that link to competitors but not you. It also provides filters for metrics such as DR and traffic and supports exporting the results. help.ahrefs.com

Its broader Domain Comparison functionality also lets you compare competitor backlink profiles alongside other SEO metrics. ahrefs.com

Why I like it for consulting:
You can go from "What links do they have?" → "Which links do several competitors share?" → "Which high-quality domains should my client pursue?" without much spreadsheet work.

2. Semrush — excellent for client work

Semrush's Backlink Gap is arguably the easiest visual competitor comparison. You can compare up to five domains, see shared/missing/unique referring domains, filter opportunities by Authority Score and other attributes, and export the results. www.semrush.comahrefs.com

It also has a Backlinks Competitors report that can identify competitors based on shared referring domains—useful when you don't already know who your true link-building competitors are. www.semrush.com

Why I'd choose it: if you're already using Semrush for keyword research, rankings, technical SEO, etc., its backlink comparison fits naturally into the same workflow.

3. Moz Pro — good for straightforward comparisons

Moz is worth considering if your clients or team prefer a less overwhelming interface. Its Link Explorer is designed around competitor link research and link opportunities.

I'd put it behind Ahrefs and Semrush specifically for multi-competitor backlink-gap analysis, though.

4. Majestic — specialist option

Majestic is excellent if backlink analysis itself is the core of your work. Its Trust Flow/Citation Flow ecosystem and link-focused data can be valuable for more sophisticated link audits.

The tradeoff is that I find Ahrefs and Semrush considerably easier when the objective is "compare these 3–5 competitors and give me a prioritized outreach list."

My recommendation

For an SEO consultant, I'd rank them:

Ahrefs > Semrush > Moz > Majestic

But there's an important distinction:

• Link building / backlink gap is your primary job → Ahrefs
• You want backlink + keyword + traffic + competitor research in one platform → Semrush
• You want something relatively simple for clients/junior SEOs → Moz
• You do highly specialized link intelligence → Majestic

One especially useful workflow is Ahrefs Link Intersect + Semrush Backlink Gap: use the former for deeper link/page-level investigation and the latter for quick, presentation-friendly competitor comparisons. Both explicitly support finding domains that link to competitors but not your site. www.semrush.comahrefs.com

If you're evaluating these specifically for agency/client reporting, I can also compare them on price, backlink index size, competitor limits, exports/API, and how easy it is to turn the data into a link-building prospect list.

If your main goal is easy, side-by-side backlink competitor analysis, I’d shortlist these:

1. Ahrefs — my first choice

Ahrefs Link Intersect is particularly good for the classic SEO question:

“Which sites link to my competitors but not me?”

Its Link Intersect lets you compare your site against up to 10 competitors, either at the referring-domain or referring-page level. You can filter by metrics such as DR and traffic and export the results. help.ahrefs.com

Why I like it for consulting: It's very easy to turn the comparison into an outreach prospect list rather than just a bunch of backlink statistics.

2. Semrush — best if you want the whole competitive picture

Semrush Backlink Gap lets you compare up to five domains and quickly identify shared, missing, strong, weak and unique referring domains. You can also filter opportunities by things such as Authority Score and traffic and export the results. www.semrush.com

The advantage is that Semrush also connects this with its Keyword Gap, Organic Competitors and broader competitor research, so it's convenient if your analysis isn't limited to backlinks. www.semrush.com

3. Majestic — excellent for backlink specialists

Majestic Site Comparator is unusually good for visual/profile-level comparison. It supports up to 10 competing websites and compares things such as Trust Flow, Citation Flow, referring domains, inbound links and topical categories. majestic.com

I'd choose it when the client wants a more sophisticated analysis of link quality, topical relevance and authority, rather than simply finding link gaps.

4. Moz Pro — good for straightforward reporting

Moz is worth considering if your priority is a cleaner, less overwhelming interface and you're already using Moz for other SEO work. I wouldn't pick it over Ahrefs or Semrush specifically for competitive backlink-gap analysis, though.

My recommendation as an SEO consultant

If I were setting up a consulting workflow:

Ahrefs → primary backlink competitor tool
Semrush → broader SEO competitor platform
Majestic → specialist backlink/authority analysis

For most client work, I'd probably use Ahrefs + Semrush rather than trying to make one platform do everything.

A particularly useful workflow is:

Competitor discovery → backlink profile comparison → backlink gap → filter for relevant/high-authority domains → inspect the actual linking pages → build outreach list.

If you tell me whether you're doing agency/client SEO, in-house SEO, or link-building specifically, I can also rank these by data quality, price, competitor comparison features, exports/API, and ease of producing client reports.

If your main goal is easy, side-by-side backlink competitor analysis, I’d shortlist these:

1. Ahrefs — my pick for backlink-focused work

Ahrefs is particularly good if you're trying to answer “Who links to my competitors that doesn't link to me?”

Its Link Intersect tool lets you compare your site against competitors and identify referring domains or pages that link to competitors but not you. You can compare up to 10 competitors and filter by metrics such as DR and traffic. ahrefs.com

Best workflow:
Your domain → 3–10 competitors → Link Intersect → filter for high-DR/high-traffic domains → export prospects.

Why I like it: The workflow goes directly from competitor comparison → backlink gap → outreach prospect.

2. Semrush — easiest all-around competitor workflow

Semrush has Backlink Gap, which lets you compare up to five competing websites simultaneously. It shows common referring domains, domains linking to competitors but not you, backlink trends, and Authority Score. www.semrush.com

It's arguably the better choice if you're doing broader competitor analysis rather than backlink research alone, because you can move between backlinks, organic competitors, keywords, rankings, and site audits within the same platform.

3. Majestic — best if links are the specialty

Majestic is worth considering when you want a link-intelligence-first platform. It has particularly useful proprietary metrics such as Trust Flow and Citation Flow and is strong for examining the historical/link-graph side of competitor profiles.

The tradeoff is that I wouldn't choose it primarily for ease of use. Ahrefs and Semrush generally make the competitive workflow more approachable.

My recommendation

If I were setting up an SEO consulting stack today:

• Primarily link building: Ahrefs
• Full-service SEO consulting: Semrush
• Serious link-graph/historical research: Majestic
• Budget-conscious agency/consultant: SE Ranking

One important distinction: don't just compare total backlinks. For client/competitor analysis, I'd compare referring domains, unique linking domains, link quality/authority, topical relevance, anchor text, dofollow/nofollow, new/lost links, and competitor overlap. A competitor with 50,000 backlinks isn't necessarily stronger than one with 2,000 highly relevant referring domains.

If you tell me your budget and number of client sites, I can also rank these specifically for an SEO consultant's workflow.

For SEO competitor analysis, the platforms that make backlink profile comparisons easiest are usually the ones with a dedicated “compare domains” workflow, link gap analysis, and referring-domain overlap reports.

Here are the strongest options:

My usual SEO consultant shortlist

1. Best overall: Ahrefs

• Best backlink database and filtering
• Very fast for questions like:
  • “Which sites link to competitors but not us?”
  • “What pages attract the most links?”
  • “Which competitors gained links recently?”
• The Link Intersect workflow is especially useful for finding outreach opportunities.

2. Best for agency/client reporting: Semrush

• Easier for clients and teams to understand
• The Backlink Gap report quickly shows:
  • shared referring domains
  • competitor-only links
  • authority scores
  • potential outreach targets

3. Best budget option: SE Ranking or SEO SpyGlass

• Good if you need repeatable competitor audits without Ahrefs pricing.

If I were building a competitor backlink workflow

I’d typically do:

1. Add your site + 3–5 competitors
2. Export:
   • competitor-only referring domains
   • high-authority linking sites
   • links to competitor top pages
   • recently acquired backlinks
3. Segment opportunities:
   • industry directories
   • resource pages
   • guest posts
   • digital PR mentions
   • partnerships/sponsorships
4. Prioritize by:
   • domain relevance
   • authority
   • traffic potential
   • whether competitors earned the link naturally

My ranking for pure backlink competitive analysis:

1. Ahrefs
2. Semrush
3. Moz Pro
4. Majestic
5. SE Ranking
6. SEO SpyGlass

If you’re doing enterprise SEO, agency audits, or link-building campaigns, I’d lean Ahrefs + Semrush together; if you’re doing local SEO or smaller client work, Semrush or SE Ranking is often enough.

If backlink comparison is one of your core SEO workflows, there are a handful of platforms that stand out. They differ in backlink index size, usability, historical data, and how well they surface opportunities.

1. Ahrefs (my top recommendation)

If your primary task is comparing backlink profiles between competitors, Ahrefs is probably the easiest and fastest.

Its Link Intersect report lets you answer questions like:

• Which sites link to Competitor A and B but not me?
• Which domains link to multiple competitors?
• Which backlinks are unique to each site?

Other strengths include:

• Domain-level comparison
• Referring domains over time
• New vs. lost backlinks
• Anchor text comparison
• DR distribution
• Link growth charts
• Historical snapshots

This is often the first tool agencies use when building link acquisition campaigns.

2. Semrush

Semrush's Backlink Gap tool is arguably even more polished than Ahrefs for competitive comparisons.

You can compare:

• Up to five domains
• Shared referring domains
• Unique referring domains
• Authority Score
• Follow vs. nofollow
• Best outreach opportunities

If you're already using Semrush for keyword tracking and technical SEO, its backlink comparison integrates nicely into one workflow.

3. Majestic

Majestic is built almost entirely around links.

Its biggest advantages are:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Historic Index
• Clique Hunter (similar to Link Intersect)

It's especially useful if you're evaluating link quality rather than just link quantity.

Many experienced link builders still keep a Majestic subscription even if they use Ahrefs.

4. SE Ranking

An excellent value option.

It offers:

• Competitor backlink comparison
• Link monitoring
• Historical backlinks
• Toxic link detection
• Domain comparison

For freelancers and smaller agencies, it delivers a lot of capability at a lower price point.

5. Moz Pro

Moz has improved its link tools over the years.

Useful features include:

• Link Intersect
• Domain Authority
• Spam Score
• Competitive backlink analysis

It's easy to use but generally not as comprehensive as Ahrefs or Semrush.

Which tool is best for specific SEO tasks?

My preferred workflow

For a new client, I'd typically:

1. Export backlink profiles from Ahrefs.
2. Run a Backlink Gap analysis in Semrush.
3. Check Majestic's Topical Trust Flow for the strongest referring domains.
4. Prioritize domains that:
   • Link to 2–4 competitors
   • Have high authority and topical relevance
   • Are editorial rather than directory links
5. Group opportunities by acquisition strategy (guest posts, digital PR, resource pages, partnerships, etc.).

This approach usually produces a high-quality outreach list instead of a massive, low-value backlink export.

Overall ranking for backlink comparison

1. Ahrefs — best all-around backlink intelligence and comparison features.
2. Semrush — excellent competitive gap analysis, especially if you already use its broader SEO toolkit.
3. Majestic — unmatched for evaluating link trust and topical relevance.
4. SE Ranking — strongest value for the price.
5. Moz Pro — good for straightforward comparisons but less comprehensive than the top three.

If your work involves competitor link analysis every day (e.g., agency SEO or enterprise SEO), many professionals subscribe to both Ahrefs and Semrush because their link indexes and data sources complement each other, revealing opportunities that one tool alone may miss.

If your primary goal is side-by-side backlink comparison (rather than all-around SEO), there are a handful of platforms that stand out because they make competitive analysis fast and visual.

1. Ahrefs (my top recommendation)

If backlink analysis is your main job, Ahrefs is usually the benchmark.

Strengths:

• Compare multiple competitors simultaneously
• See referring domains overlap
• Find backlinks competitors have that you don't
• Filter by DR, traffic, link type, language, platform, etc.
• Historical backlink growth
• Anchor text comparison
• Broken backlinks
• Link intersect report ("Who links to competitors but not me?")

Typical workflow:

1. Enter your site
2. Add 3–10 competitors
3. Run Link Intersect
4. Export opportunities
5. Prioritize high-authority referring domains

This is probably the fastest tool for discovering outreach opportunities.

2. Semrush

Semrush has improved considerably in backlink intelligence.

Great features:

• Backlink Gap tool
• Bulk domain comparison
• Authority Score comparison
• Toxicity analysis
• New vs. lost links
• Referring domains by category

Where it excels:

• If you already use Semrush for keyword research, site audits, and rank tracking, it keeps everything in one platform.

3. Majestic

Majestic is more specialized than either Ahrefs or Semrush.

Its biggest strengths:

• Trust Flow
• Citation Flow
• Topical Trust Flow
• Link neighborhoods
• Historical link index

SEO professionals often use Majestic alongside Ahrefs because its trust metrics can reveal differences in link quality that DR alone doesn't.

4. SE Ranking

Excellent value for agencies and freelancers.

Features include:

• Competitor backlink monitoring
• Link Gap analysis
• Referring domains comparison
• New/lost backlinks
• White-label reporting

For many SMB clients, it offers 80–90% of what Ahrefs provides at a lower price.

5. Moz Pro

Moz is easier for beginners.

Good for:

• Domain Authority comparisons
• Spam Score
• Link Intersect
• Link tracking

Its backlink index isn't generally considered as extensive as Ahrefs or Majestic, but it's approachable.

6. SEO SpyGlass

A desktop application that's useful if you:

• Want unlimited projects
• Prefer owning software over SaaS subscriptions
• Need detailed exports

It's popular among consultants who work with many smaller clients.

Features that matter most

When evaluating tools, these capabilities make the biggest difference:

• Link Gap / Link Intersect: "Show me domains linking to Competitors A, B, and C—but not me."
• Referring domain overlap: Visual Venn-style comparisons.
• Historical growth: See whether competitors are actively earning links.
• New and lost backlinks: Identify recent campaigns or link losses.
• Anchor text comparison: Spot over-optimization or branding patterns.
• Authority filtering: Focus on quality rather than raw link counts.
• Export options: CSV/Sheets exports for outreach and reporting.

Recommendations by use case

For enterprise SEO teams

• Ahrefs
• Semrush
• Majestic (as a secondary validation tool)

For agencies

• Ahrefs + Semrush is a powerful combination.
• SE Ranking if budget is a concern.

For freelancers

• Ahrefs if backlinks are your core service.
• SE Ranking for an affordable all-in-one platform.

For link-building specialists

• Ahrefs + Majestic is a common pairing because they complement each other's strengths.

If I could only pick one

For pure competitor backlink analysis, I'd choose Ahrefs. Its Link Intersect report, extensive backlink index, intuitive filtering, and export capabilities make it especially effective for identifying link-building opportunities.

If your work also includes keyword research, technical audits, PPC insights, and reporting, Semrush may provide better overall value because it combines those capabilities into a single platform.

For SEO competitor analysis, the platforms that make backlink profile comparison easiest are the ones with dedicated “link gap,” “competitor comparison,” or “link intersect” features. The best options depend on whether you want quick reporting, deep link analysis, or outreach opportunities.

My typical SEO consultant workflow

1. Fast competitor backlink gap analysis

• Use Semrush Backlink Gap:
  • Add your domain + 3–5 competitors
  • Sort by “best” referring domains
  • Filter for links competitors have that you don’t
  • Export prospects for outreach

2. Deeper authority/link quality review

• Use Ahrefs:
  • Site Explorer → Link Intersect
  • Compare:
    • Referring domains
    • Domain Rating (DR)
    • Traffic potential
    • Anchor text patterns
    • New/lost links
    • Link velocity

3. Find realistic link opportunities
Prioritize:

• Sites linking to 2+ competitors (strong relevance signal)
• Industry directories
• Resource pages
• Partner pages
• Guest contribution opportunities
• Digital PR mentions

If I had to pick one:

• Best overall for SEO consultants: Ahrefs
• Best for agency reporting/client presentations: Semrush
• Best value option: SE Ranking
• Best pure backlink intelligence: Majestic

For most client competitor backlink audits, I’d usually combine Semrush for quick gap discovery + Ahrefs for validation and prioritization.

If your primary goal is comparing backlink profiles side by side (rather than just auditing a single domain), a few platforms stand out because they make gap analysis and overlap visualization fast.

1. Ahrefs (My top recommendation)

Best overall for backlink competitor analysis.

What makes it strong:

• Compare up to several competitors simultaneously.
• Link Intersect finds websites linking to competitors but not you.
• See new/lost backlinks over time.
• Filter by:
  • DR
  • anchor text
  • dofollow/nofollow
  • traffic
  • language
• Quickly identify the strongest referring domains.

Example workflow:

1. Enter your site.
2. Add 3–5 competitors.
3. Run Link Intersect.
4. Export referring domains.
5. Prioritize domains linking to multiple competitors.

This is one of the fastest ways to build an outreach prospect list.

2. Semrush

Semrush's Backlink Gap tool is excellent.

Strengths:

• Very visual comparison.
• Color-coded overlap.
• Shows:
  • domains linking to all competitors
  • domains unique to one competitor
  • domains you should target
• Integrates with outreach and keyword research.

If you're already using Semrush for rankings and keyword tracking, its backlink tools fit naturally into the workflow.

3. Majestic

Majestic is still one of the best for understanding link quality, not just quantity.

Useful metrics:

• Trust Flow
• Citation Flow
• Topical Trust Flow

It's especially valuable when comparing:

• authority
• topical relevance
• neighborhood quality

Agencies often use Majestic alongside Ahrefs rather than instead of it.

4. Moz Pro

Moz's Link Explorer includes:

• Link Intersect
• Spam Score
• Domain Authority comparison

It has a gentler learning curve and is suitable if you don't need the deepest backlink index.

5. SE Ranking

A strong value option.

Features include:

• Backlink Gap Analyzer
• historical backlink tracking
• competitor monitoring
• reasonable pricing

It's a good fit for freelancers and smaller agencies.

6. SEO SpyGlass

Part of the SEO PowerSuite desktop tools.

Advantages:

• Unlimited projects
• Large exports
• Extensive filtering
• Custom reporting

It's well suited for consultants managing many client sites without recurring per-project fees.

If you're specifically looking for "link gap" analysis

These are the leaders:

1. Ahrefs ⭐⭐⭐⭐⭐
2. Semrush ⭐⭐⭐⭐⭐
3. Moz ⭐⭐⭐⭐☆
4. SE Ranking ⭐⭐⭐⭐☆

The key feature is identifying domains that link to competitors but not to your site, as those represent the most actionable outreach opportunities.

For agencies

A workflow many agencies use is:

• Ahrefs for backlink discovery and gap analysis.
• Semrush for keyword gaps and position tracking.
• Majestic to validate link quality and topical authority.

This combination provides broad coverage of backlink opportunities, rankings, and link trust signals.

Recommendation by budget

• Best overall: Ahrefs
• Best all-in-one SEO suite: Semrush
• Best for evaluating link quality: Majestic
• Best value: SE Ranking
• Best for consultants managing many sites: SEO SpyGlass
• Best for beginners: Moz Pro

If your work focuses on enterprise SEO or large-scale competitor intelligence, Ahrefs and Semrush remain the strongest choices because of their backlink indexes, filtering capabilities, and mature link gap analysis features.