ChatGPT answers, unedited

If your priority is clean, client-facing toxic-link reporting, I’d rank them:

My pick: Semrush

For agencies, Semrush Backlink Audit is probably the cleanest fit. It gives every backlink a 0–100 Toxicity Score, shows the toxic markers behind the score, lets you whitelist legitimate links, and produces removal/disavow lists. It also supports exports and integrates GSC data. www.semrush.com

Semrush Backlink Audit

That makes it particularly easy to turn an audit into something like:

Backlink Health: 86/100
Referring domains: 247
Links requiring review: 18
High-risk links: 4
Recommended action: Monitor / investigate / disavow where appropriate

Ahrefs: better data, worse for a “toxic links” deliverable

I actually prefer Ahrefs for investigating the backlink profile, especially when you want to show clients referring domains, organic traffic, DR, anchor text, lost links, and competitive link gaps.

But Ahrefs explicitly doesn't provide a spam/toxic score. Its current guidance is to use filters such as DR, organic traffic and outbound links to identify lower-quality backlinks. help.ahrefs.com

Ahrefs

So I'd use Ahrefs when the deliverable is “backlink profile analysis”, rather than “toxic backlink report.”

Moz Pro: good for less technical clients

Moz's Spam Score is easier to explain than a giant collection of link-quality metrics. For local-business clients who don't want a 40-page SEO lecture, that simplicity can be useful.

Moz Pro

One important caveat

I wouldn't put “X toxic links are hurting your rankings” in client reports solely because Semrush/Moz labels them that way.

That's an important distinction. Ahrefs itself cautions that SEO-tool “toxic” labels aren't necessarily evidence that a link is actually harming a site, and recommends being particularly cautious about disavowing links. ahrefs.com

For local SEO clients, I'd therefore make the report say “suspicious/low-quality links requiring review” rather than “harmful links.”

Best agency stack: Semrush for the polished toxicity report + Ahrefs for deeper backlink investigation + GSC as a first-party cross-check. Using two commercial indexes is useful because backlink databases don't contain identical link sets. www.searchscientists.com

If you're producing these reports white-label for clients, Semrush is the one I'd choose first.

For client-facing local SEO deliverables, I’d prioritize tools that give you an explainable audit rather than simply dumping a “toxic links” number.

My picks

1. semrush.com — best for polished client reports

• Has an explicit Toxicity Score, with the underlying toxic markers exposed.
• Evaluates links using 50+ parameters.
• Lets you separate links into review/keep/remove/disavow workflows.
• Can connect Google Search Console and export/disavow lists.
• Particularly good if clients expect a simple “here's what we found → here's what we're doing” report. Semrush Semrush
• ahrefs.com — best for a cleaner, less alarmist audit

• I actually prefer Ahrefs when the deliverable needs to educate the client rather than scare them with a toxicity percentage.
• It doesn't use a proprietary spam/toxicity score. Instead, you can filter for known spammy domains, low-quality links, traffic, DR, etc. Ahrefs Help Center Ahrefs Help Center
• Excellent backlink/anchor-text data and PDF/CSV export. Ahrefs
• This makes it easier to say “these 17 links warrant review” instead of “your site has 23% toxic backlinks.”
• Moz Pro — worth considering if you specifically want its Spam Score as an additional signal. I wouldn't make it my primary audit platform if you manage lots of clients, though; Semrush/Ahrefs generally give you a stronger end-to-end backlink workflow.

One important caveat

I wouldn't put “toxic backlinks” = “bad backlinks” in a client report. That's too simplistic.

Even Ahrefs now explicitly notes that there isn't a universally reliable “toxic” score and that Google doesn't define a numerical threshold for when a link should be disavowed. Ahrefs Help Center

For local businesses, I'd structure the deliverable around something like:

That produces a much more defensible client deliverable than a screenshot of a toxicity score.

If I were managing several local-business clients: I'd use Semrush for the client-facing audit workflow + Ahrefs as the second-source backlink check. The combination gives you both a clean automated flagging system and enough raw backlink data to challenge false positives.

If your priority is clean, client-facing toxic-link reporting, I’d rank them:

My pick: Semrush

For an agency managing multiple local businesses, Semrush Backlink Audit is probably the easiest to turn into a polished deliverable. It provides a 0–100 Toxicity Score, toxic markers, referring-domain information, filters, and CSV/TXT/PDF exports. You can also build branded reports through its reporting system. www.semrush.com

Semrush Backlink Audit

The important caveat: don't present the tool's “toxic” count as “links Google will penalize.” Semrush itself says the score is based on its markers and recommends manually reviewing links before removal/disavow. www.semrush.com

Ahrefs is actually excellent for “clean” reports

I'd use Ahrefs if your clients are sophisticated enough that they don't need a simplistic red/yellow/green toxic score. Ahrefs deliberately doesn't provide a spam score because it argues that Google doesn't define a universal threshold for a “toxic” backlink. Instead, it gives you DR, organic traffic, referring domains, link attributes, anchors, etc., and lets you filter the backlink set. help.ahrefs.com

Ahrefs Backlink Checker

That can actually make for a more defensible client report: “Here are 17 links we recommend investigating because they're irrelevant, manipulative-looking, deindexed, etc.” rather than “17 toxic links will hurt you.”

Moz is good when client readability matters

Moz's Spam Score is straightforward and easy to explain to non-SEOs. But I'd label it explicitly as a prioritization signal, not a Google penalty indicator. Moz itself cautions that a high Spam Score doesn't necessarily mean a site is actually spammy. www.youtube.com

One big reporting recommendation

For local SEO clients, I'd structure the deliverable around:

Backlink health → suspicious links → manually reviewed links → recommended action

rather than simply:

“Client has 143 toxic backlinks.”

That distinction matters because Google says there isn't a universal “toxic backlink” metric, and Google's current guidance generally says sites don't need to disavow ordinary spammy links unless there's a substantial issue such as artificial links/manual action. Ahrefs' current guidance makes the same point. help.ahrefs.com

If I were running your agency stack:
Semrush for automated/client-facing audits + Ahrefs for deeper investigation. That combination gives you both the clean “report card” and the evidence needed when a client asks, “Why exactly did you flag this domain?”

If the goal is clean, client-facing toxic-link reporting, I’d shortlist these:

1. Semrush Backlink Audit — best for agency deliverables

This is probably the easiest choice if you're managing multiple local-business accounts. Semrush explicitly assigns links to an audit workflow, surfaces suspicious/toxic signals, gives you an Overall Toxicity Score, and supports filtering, outreach, and disavow-file generation. www.semrush.com

The client-friendly part is particularly useful: you can turn a messy backlink database into something like:

• Total referring domains
• Total backlinks
• Toxic / potentially harmful links
• Toxicity trend
• Top suspicious domains
• Links requiring review
• Recommended actions

Semrush currently defines Low toxicity as under 3%, Medium as 3–9%, and High as over 10%. www.semrush.comwww.semrush.com

Caveat: I wouldn't present the toxicity percentage to a client as "X% of your links are hurting rankings." It's a tool-generated risk classification, not a Google metric.

2. Ahrefs Site Explorer — best if you want defensible analysis

Interestingly, Ahrefs doesn't have a proprietary "toxic score." Its current guidance explicitly argues against reducing backlink quality to a single spam/toxicity number. help.ahrefs.com

That's actually an advantage for sophisticated client reporting.

You can use its backlink filters to isolate:

• Known spammy domains
• Low-quality links
• Very low/no organic traffic
• Low DR
• UGC/forum/comment links
• Sponsored links
• Nofollow links
• Unusual anchor text patterns

Ahrefs added a Known spammy domains filter that can specifically surface backlinks tagged as SPAM. help.ahrefs.com

I'd use Ahrefs when the report needs to withstand the question "Why exactly did you classify this link as problematic?"

3. Moz Link Explorer — good for simpler SMB reports

Moz's Spam Score is easier for a non-SEO client to understand than a huge backlink spreadsheet. It's useful when your local-business clients primarily need a quick risk snapshot rather than a forensic backlink investigation.

My agency recommendation

For several local businesses, I'd actually use a two-tool workflow:

Semrush → client-facing risk report
Ahrefs → verification / deeper investigation

That lets you avoid the classic agency mistake of saying:

"You have 47 toxic backlinks, so we need to disavow them."

Instead, report something closer to:

47 backlinks flagged for review → 8 appear genuinely manipulative → 39 are low-quality but don't warrant action.

That's much more defensible, especially because Google's current guidance—and Ahrefs' own 2026 guidance—does not treat every low-quality backlink as something that should be disavowed. Ahrefs notes that Google generally ignores many bad links and recommends considering disavowal primarily when there's a substantial volume of spammy/artificial links plus a manual action or likely manual-action risk. help.ahrefs.com

If you only want one subscription: I'd pick Semrush for agency/client reporting.
If you're already using Ahrefs: I wouldn't buy another tool solely for a "toxic score"; build the report around Ahrefs' spam/quality filters instead.

If the goal is client-facing backlink/toxic-link reports, rather than just raw backlink research, I’d rank them:

My pick: Semrush

For your specific use case, Semrush Backlink Audit is probably the cleanest choice. It explicitly assigns a Toxicity Score, lets you review/whitelist suspicious links, and can export the audit as PDF, CSV, or TXT. Its My Reports system can also combine backlink data with GSC/GA4 and produce branded, scheduled client PDFs. www.semrush.com

Semrush Backlink Audit

For local SEO clients, I'd make the deliverable something like:

Backlink Health

• Referring domains
• New/lost referring domains
• Toxicity distribution
• Top suspicious domains
• Anchor-text distribution
• Links requiring manual review
• Recommended action: monitor / investigate / disavow

That looks much more professional than handing a client a giant CSV of "toxic" URLs.

One important caveat about "toxic"

I wouldn't present a tool's Toxicity Score as "these links are hurting your rankings." That's too strong.

Ahrefs explicitly notes in its current documentation that it doesn't provide a spam score, because Google doesn't publish a formula for determining whether an individual backlink is spammy. It recommends filtering/analyzing links rather than treating an automated score as ground truth. help.ahrefs.com

Google's current philosophy also means that random low-quality links aren't automatically something you should disavow. Ahrefs' guidance says disavow is generally appropriate when there's a substantial volume of spammy/artificial links and a manual action or likely manual-action risk. ahrefs.com

So for client reporting, I'd call the section "Suspicious / Potentially Harmful Links" rather than "Toxic Links."

Where Ahrefs fits

I'd still want Ahrefs in an agency stack if backlinks are a major part of your work. Its strength is the underlying backlink research: referring domains, anchor text, link growth/loss, competitors, etc. But as of June 2026, Ahrefs specifically says it does not have a predefined spam/toxic score. help.ahrefs.com

Ahrefs Backlink Checker

Bottom line: If you want one tool that produces clean, explainable backlink-health reports for clients → Semrush. If you want the strongest backlink research/data layer → Ahrefs. If you're doing a lot of local SEO at agency scale, using Semrush for the report and manually validating the genuinely suspicious domains is a very defensible workflow.

If the goal is client-facing backlink/toxic-link reports that look clean and defensible, I’d shortlist these:

My pick: Semrush

For an agency managing multiple local-business clients, Semrush Backlink Audit is probably the cleanest fit. It produces a Toxicity Score, identifies the toxic markers behind individual links, lets you whitelist links, and organizes links into review/remove/disavow workflows. It can also combine Semrush's backlink data with Google Search Console and Majestic data. www.semrush.com

That makes it easy to turn the raw audit into something like:

• Total referring domains
• Total backlinks
• Toxic / potentially harmful links
• Links reviewed
• Links recommended for removal
• Links recommended for disavow
• New/lost backlinks
• Top referring domains
• Anchor-text distribution
• Short explanation of methodology

One important caveat: don't present Semrush's Toxicity Score as proof that a link is actually harming rankings. Semrush describes it as a way to prioritize links for investigation, and its score is based on numerous signals. www.semrush.com

Ahrefs is my second choice

Ahrefs is excellent when you want a more conservative, analyst-driven report rather than a big red “TOXIC” number. In fact, Ahrefs explicitly cautions that “toxic backlinks” is terminology invented by SEO tools and distinguishes those from genuinely manipulative links. help.ahrefs.comwww.semrush.com

For client work, I'd use Ahrefs to validate questionable Semrush findings:

Semrush flags → Ahrefs investigates → you make the recommendation.

That avoids telling a client that 300 random directory links are “toxic” simply because an algorithm doesn't like them.

For local SEO specifically

I'd actually make the deliverable less focused on “toxic links” and more focused on link quality + risk.

For a local business, a backlink from a small local newspaper, chamber of commerce, community organization, supplier, sponsorship, or relevant local directory can look weak according to some automated metrics while being perfectly legitimate and useful.

So I'd use categories such as:

Healthy / Relevant
Low-value but harmless
Review
Potentially manipulative
Clear spam/manipulation

That terminology is much easier to defend in front of clients than “your website has 147 toxic backlinks.”

If you want one tool for scalable agency reporting, I'd go Semrush. If you want the cleanest methodology, I'd pair Semrush + Ahrefs + GSC and manually review anything you're actually recommending for removal/disavow. help.ahrefs.comwww.semrush.com

Semrush Backlink Audit
Ahrefs Site Explorer

For client-facing toxic-link reports, I’d prioritize tools that make the output understandable and defensible—not just tools with the biggest backlink database.

Best fit for agency/client deliverables

1. Semrush Backlink Audit — best overall for “toxic link” reporting

Semrush Backlink Audit

This is probably the cleanest choice if the deliverable literally needs a Toxicity Score + suspicious-link list + recommended action. It evaluates links using 45+ toxic markers, gives each link a 0–100 Toxicity Score, and supports exports/disavow workflows. www.semrush.com

For local SEO clients, I'd present:

• Overall backlink count / referring domains
• Toxicity score
• Number of suspicious domains
• Top 5–10 links requiring review
• “No action recommended” where appropriate
• Separate disavow recommendations rather than implying every “toxic” link should be removed

Semrush also lets you combine its backlink data with Google Search Console and Majestic, which is useful when you want the report to look more comprehensive. www.semrush.comhelp.ahrefs.comhelp.ahrefs.com

2. Ahrefs — best for a more credible, less “SEO-score-y” report

Ahrefs

Interesting distinction: Ahrefs doesn't provide a proprietary spam/toxic score. It explicitly argues that “toxic backlinks” aren't a Google-defined metric and recommends evaluating links based on actual evidence of manipulation. help.ahrefs.comhelp.ahrefs.com

That makes Ahrefs particularly good if your clients are sophisticated and you want to avoid saying:

“You have 37 toxic backlinks!”

when what you really mean is:

“We identified 37 links with characteristics worth reviewing.”

Ahrefs' backlink exports and filters can produce a very clean appendix, especially around DR, organic traffic, referring domains, and link attributes. It also has customizable SEO reporting. help.ahrefs.com

My agency recommendation

If you're managing multiple local-business clients, I'd actually use:

Semrush for the client-facing toxic-link dashboard + Ahrefs for manual validation.

That gives you the convenience of a standardized toxicity metric while preventing the common mistake of treating the tool's automated score as Google's judgment.

One important caveat: don't automatically recommend disavowing everything Semrush labels toxic. Semrush itself notes that a high Toxicity Score isn't by itself a reason to disavow; you should establish that the link is actually manipulative/problematic. www.semrush.com

For a polished client report, I'd call the section “Potentially Harmful / Suspicious Backlinks” rather than “Toxic Backlinks.” It sounds more professional and is much easier to defend when a client asks why a random directory link got flagged.

For client-facing backlink/toxic-link reporting, I’d prioritize tools that give you a clean export and an explainable methodology—not just a scary “toxic” number.

My picks

Semrush is probably the closest match to what you're asking for. Its Backlink Audit has a 0–100 Toxicity Score, 45+ toxic markers, link-level explanations, whitelist/review/disavow workflows, and PDF/CSV/TXT exports. You can also combine it with GSC and other backlink data sources. www.semrush.com

The important caveat: don't present a tool's “toxic” score to clients as proof that Google considers those links harmful. Semrush itself describes the score as a way to prioritize investigation. Ahrefs explicitly rejects the idea that there is a definitive “toxic backlink” score and recommends evaluating manipulative links based on evidence instead. help.ahrefs.com

What I'd use for local-business clients

My agency workflow would be:

1. Semrush → initial automated audit and polished client-facing summary.
2. Ahrefs → independently validate important referring domains, organic traffic, anchors, DR/UR, and link context.
3. GSC → sanity-check Google's own discovered-link data.
4. Manually classify questionable links as Natural / Low-quality / Manipulative / Needs review, rather than automatically calling everything with a high tool score “toxic.”

That's especially useful for local SEO because a low-DR local newspaper, chamber of commerce, niche directory, supplier, community organization, or local blog can be perfectly legitimate despite looking weak according to generic link metrics.

For your deliverable, I'd actually rename the section “Potentially Harmful / Suspicious Backlinks” rather than “Toxic Links.” It sounds more professional and is much easier to defend when a client asks, “Why exactly is this link toxic?”

If you manage several clients, Semrush + Ahrefs is the combination I'd choose: Semrush for scalable reporting/workflow, Ahrefs for deeper validation.

If your priority is clean, client-presentable toxic-link reporting, I’d shortlist these:

1. Semrush Backlink Audit — best for client deliverables.

It gives each backlink a 0–100 Toxicity Score, identifies the toxic markers behind the score, lets you whitelist/review links, and exports to PDF/CSV/TXT. Its My Reports system also lets you turn the audit into branded client reports. www.semrush.com
Semrush Backlink Audit

2. Ahrefs — best as a second-opinion data source.

Ahrefs deliberately doesn't use a single "toxic score." Instead, you can filter for known spammy domains, low-quality links, organic traffic, DR, etc. That's useful because it avoids presenting an algorithmic score as if Google itself declared a link toxic. help.ahrefs.com
Ahrefs Site Explorer

3. Moz Link Explorer — useful for a simple client-facing spam signal.

Moz's Spam Score is easy to understand in a report, though I'd use it more as a screening metric than as a basis for recommending disavows.

What I'd use for agency reporting

Semrush + Ahrefs is probably the strongest combination:

• Semrush: produce the polished toxic-link report and initial candidate list.
• Ahrefs: cross-check whether those domains actually look problematic and whether there are important links Semrush missed.
• Google Search Console: use as another source of Google's own discovered-link data.
• Then manually classify the final candidates as Keep / Monitor / Investigate / Remove or Disavow.

One important client-reporting caveat: don't equate "toxic" with "bad for rankings." Semrush itself says a high Toxicity Score isn't by itself a reason to disavow; low-quality, irrelevant-looking links aren't necessarily manipulative links. www.semrush.com

For local SEO clients specifically, I'd make the deliverable less alarmist: show suspicious/manipulative links requiring review rather than handing the client a giant list of "toxic backlinks." That tends to be much more defensible.

If by “clean toxic-link reports” you mean something you can hand to a local-business client without a giant spreadsheet of questionable links and scary-but-not-actionable scores, I’d rank them:

1. Semrush — best for deliverables

Semrush Backlink Audit is probably the easiest fit for an agency managing several local clients.

It gives each backlink a Toxicity Score, identifies the markers behind that score, lets you categorize links for review/keep/removal, and can generate a disavow file. Semrush says its evaluation uses 50+ parameters and its audit can incorporate Google Search Console and Majestic data. www.semrush.com

The big advantage for client reporting is that you can turn:

“There are 1,847 backlinks”

into something much more digestible:

Backlink health: Good
Links requiring review: 17
High-risk links: 4
Recommended action: Monitor / investigate; no blanket disavow recommended

That is much more useful to a local-business owner.

Caveat: Don't present Semrush's Toxicity Score as Google's assessment. It's Semrush's proprietary classification. www.semrush.com

2. Ahrefs — better when you want to show your work

Ahrefs is my preference if you, rather than the client, are doing the forensic analysis.

Interestingly, Ahrefs explicitly pushes back on the generic concept of “toxic backlinks”: its current guidance says the term is largely a tool-created label and distinguishes it from Google's concept of manipulative/link-spam links. help.ahrefs.com

That's actually a useful philosophy for client reports. Instead of saying:

“You have 63 toxic links!”

I'd report:

• suspicious/manipulative patterns
• obvious sitewide links
• irrelevant paid/inserted links
• hacked/spam pages
• anchor-text anomalies
• links that are simply low-quality but harmless

That avoids creating unnecessary client anxiety.

3. Majestic — excellent second opinion

Majestic Site Explorer is particularly good for context and link quality, rather than giving you a single “toxic” number.

Its Trust Flow, Citation Flow and Topical Trust Flow let you evaluate whether a referring domain is actually relevant and trustworthy. Majestic also has Link Context and Link Graph reports, plus PDF reporting. majestic.com

For local SEO, I especially like Topical Trust Flow because a backlink from a moderately authoritative locally relevant site can be more interesting than a high-metric but completely unrelated domain. Majestic's topical system covers 800+ categories. blog.majestic.com

What I'd use for an agency

For several local-business accounts, I'd build the workflow around:

Semrush → Google Search Console → manual review → client-facing summary

and use Ahrefs or Majestic as the second opinion when something looks suspicious.

One important distinction: “low quality” ≠ “needs to be disavowed.” Google doesn't expect you to chase down every weird directory, scraper, foreign-domain link, or automatically generated backlink. Your deliverable should focus on evidence of manipulation rather than simply labeling anything with a low third-party metric “toxic.”

If you want, I can also compare Semrush vs Ahrefs vs Majestic specifically for agency reporting, white-label PDFs, multi-location clients, exports, and cost per client.

If your priority is clean, client-facing toxic-link reporting, I’d shortlist them like this:

My pick: Semrush for the deliverable

Semrush's Backlink Audit is particularly suited to what you're describing. It gives you a domain-level Toxicity Score, individual toxic markers, filtering/grouping, and a workflow for putting links into review, removal, or disavow lists. It can also incorporate Google Search Console and Majestic data. www.semrush.com

The important caveat: don't present the Toxicity Score to clients as “these links are hurting your rankings.” Semrush itself describes it as an indicator for links that warrant investigation. Its score is based on its own signals, not a Google-issued toxicity metric. www.semrush.com

Ahrefs is actually better for a more conservative report

Ahrefs explicitly says it doesn't provide a spam/toxic score, because Google doesn't publish a formula for determining whether an individual backlink is “toxic.” Instead, Ahrefs recommends filtering backlinks using things like DR, organic traffic, and outbound-link counts. help.ahrefs.com

For sophisticated clients, I actually like that approach: “potentially manipulative/low-quality links requiring review” is more defensible than a giant red “TOXIC” number.

For local SEO specifically

I'd structure the deliverable around:

Backlink → referring domain → anchor → follow/nofollow → topical relevance → estimated traffic → authority → reason for review → recommended action

Then classify links as:

• Keep — legitimate/local/editorial
• Monitor — questionable but not actionable
• Remove — clearly manipulative or inappropriate
• Disavow candidate — only when there's a compelling reason

That last category matters because Google's position is essentially that you shouldn't routinely disavow random low-quality backlinks. A tool's toxicity flag is a triage signal, not proof that Google is penalizing the client.

Bottom line: If you want the cleanest visual toxic-link report, go Semrush. If you want the most defensible SEO audit methodology, pair Ahrefs + Google Search Console and make the human-review criteria explicit. For an agency managing lots of local clients, Semrush + a standardized report template is probably the most efficient workflow.

If your priority is clean, client-facing toxic-link reporting, I’d shortlist these:

1. Semrush Backlink Audit — best overall for client deliverables.

Its Toxicity Score is explicit, uses 45+ toxic markers, lets you group/filter suspicious links, and has a built-in removal/disavow workflow. That makes it especially easy to turn an audit into a polished client report. www.semrush.com

2. Ahrefs — best for the underlying backlink data.

I’d use it when you care more about finding a comprehensive backlink set than having an opinionated “toxic” score. For agency work, it’s particularly useful for validating whether Semrush's flagged links are actually worth investigating. www.techradar.com

3. Moz Pro — good if you want a simpler, recognizable report.

Moz's link metrics are useful for explaining link quality to less-technical clients, although I wouldn't choose it over Semrush specifically for toxic-link workflow.

My agency workflow

For local-business clients, I'd avoid presenting “X toxic backlinks” as a fact. A tool's toxicity/spam score is a heuristic, not a Google penalty determination. Instead, make the deliverable:

Backlink health → links requiring review → clearly manipulative/spammy links → recommended action

I'd typically use Semrush as the presentation/audit layer + Ahrefs as a second data source, then manually review the genuinely concerning domains. This prevents a client from getting alarmed because an otherwise harmless directory, scraper, or low-authority local site happened to receive a high automated toxicity score.

Also, don't automatically recommend disavowing everything flagged. Semrush itself recommends careful consideration and removal outreach before disavow, and its workflow supports exporting a disavow file when appropriate. www.semrush.com

If I had to pick just one for an agency: Semrush.
If I wanted the strongest two-tool stack: Semrush + Ahrefs.

For local SEO client deliverables, I’d prioritize tools that produce easy-to-explain reports (risk score, suspicious domains, anchors, reasons flagged, actions) rather than just raw backlink data.

Here are the strongest options:

My agency-style stack recommendation

For most local SEO clients:

1. Run a monthly/quarterly Semrush Backlink Audit.
2. Export:
   • Toxicity score summary
   • New referring domains
   • High-risk links
   • Anchor text distribution
   • Action list (monitor/remove/disavow)
3. Manually review anything flagged before telling a client it is "bad."

Semrush is probably the cleanest choice when the deliverable itself is the product because the report language is already client-friendly. www.semrush.com

A few cautions for local SEO reporting

• Avoid telling clients "these toxic links are hurting rankings" unless you have evidence. Many low-quality links are simply ignored by Google.
• A high "toxicity" score is a tool-generated risk signal, not a Google penalty diagnosis.
• For local businesses, I’d also include a separate local authority link report (chambers, associations, local news, sponsorships, niche directories), because removing bad links is usually less valuable than building strong local relevance.

If you manage several locations, I’d lean toward Semrush + Google Search Console + a Looker Studio template so every client gets a consistent monthly backlink health page.

For client-facing SEO deliverables, you’ll usually want backlink tools that do three things well:

1. Clean toxic-link identification (not just a giant spam-score export)
2. Readable reports clients can understand
3. Export options (PDF/CSV/white-label where possible)

Here are the strongest options for local SEO agencies:

My picks for local SEO agencies

Best overall for recurring client reports:
Semrush

• Backlink Audit tool gives a simple “toxic / potentially toxic / safe” view.
• Good for monthly client PDFs.
• Easy to explain: “We found X suspicious links and reviewed them.”

Best budget-friendly agency stack:
SE Ranking

• Good mix of rank tracking, backlinks, reporting, and agency features.
• Useful if you have many small-business clients.

Best if clients are sophisticated or you’re doing audits:
Ahrefs + manual review

• Their backlink index is often preferred for link research.
• I’d avoid presenting a raw “toxic score” as the conclusion; use it as a prioritization signal.

Best “client won’t understand SEO jargon” option:
Moz

• Spam Score is easy to communicate in a local business report.

A practical agency workflow

For local businesses, I’d typically deliver:

Backlink Health Summary

• Total referring domains
• New/lost links
• Authority distribution
• Top linking domains
• Suspicious links reviewed
• Actions taken (monitor / request removal / disavow consideration)

Avoid sending clients a list of hundreds of “toxic links” without context. Many automated toxicity systems over-flag normal low-authority links (directories, local citations, small blogs, etc.), which are common in local SEO.

A solid stack for most agencies:

• Semrush → automated toxic-link reporting + client PDFs
• Ahrefs → deeper investigation
• Google Search Console → Google’s own link data sanity check

If you manage 10+ local clients, I’d lean toward an agency platform with white-label reporting rather than just the strongest backlink crawler.

If the goal is client-facing backlink/toxic-link reports that look clean, understandable, and defensible, I’d shortlist these:

1. Semrush — best for polished agency reports

Semrush's Backlink Audit is probably the closest match to what you're describing. It gives every backlink a 0–100 Toxicity Score, identifies the toxic markers behind the score, and groups links into toxic, potentially toxic, and non-toxic categories. It also supports exports, GSC data, removal workflows, and disavow lists. www.semrush.comwww.semrush.com

Semrush Backlink Audit

For recurring local-SEO clients, I'd use this as the presentation layer:
Total referring domains → suspicious links → highest-risk domains → examples → recommended action.

One caveat: don't present Semrush's Toxicity Score as proof that Google considers a link harmful. It's Semrush's algorithmic assessment based on its own markers. www.semrush.comwww.semrush.com

2. Ahrefs — best for a more defensible report

Ahrefs deliberately doesn't have a single "toxic backlink score." Its current guidance says there's no reliable universal spam score, and instead recommends looking at things such as DR, organic traffic, outgoing links, and known spammy domains. help.ahrefs.comhelp.ahrefs.com

It does now let you filter specifically for known spammy domains, producing a report containing links tagged "SPAM." help.ahrefs.com

That's actually attractive for sophisticated clients because you can say:

"These are links exhibiting specific spam signals"

rather than:

"These 137 links are toxic."

I'd choose Ahrefs if your clients are technically savvy or likely to challenge the methodology.

3. Majestic — excellent second opinion

Majestic's Trust Flow measures the quality of a site's backlink profile, while Citation Flow focuses more on link quantity. Comparing the two can help identify domains whose link profiles deserve investigation. majestic.com

It's particularly useful as a supporting metric, rather than your primary toxic-link detector.

What I'd use for local-business clients

For an agency managing multiple SMB/local SEO accounts, I'd actually use:

Semrush + Google Search Console + manual review

Then make the client report deliberately simple:

• Healthy / natural links
• Low-quality but harmless links
• Potentially manipulative links
• Links requiring investigation
• Actual action recommended: none / monitor / removal / disavow

That's important because a low-authority or irrelevant backlink isn't automatically a harmful backlink. Google's guidance distinguishes actual link spam/manipulation from the much broader universe of poor-quality links, and Ahrefs specifically cautions against treating a generic "toxic" score as authoritative. help.ahrefs.comhelp.ahrefs.com

If you want the cleanest white-label client deliverable, I'd pick Semrush. If you want the most defensible methodology, I'd use Ahrefs data and manually classify the links.

If your priority is clean, client-facing toxic-link reporting, I’d rank them:

My pick: Semrush

For agency/local SEO work, Semrush Backlink Audit is probably the cleanest fit. It gives every backlink a 0–100 Toxicity Score, explains the toxic markers behind the score, and lets you segment links into toxic, potentially toxic, and non-toxic. www.semrush.com

It also has the workflow clients actually understand: review → whitelist → removal/disavow list → export. You can connect Search Console and import additional backlink data, which is useful when you're trying to make the report more defensible. www.semrush.com

For a client PDF, I'd present something like:

• Total referring domains
• Total backlinks
• Toxic: X
• Potentially toxic: X
• Non-toxic: X
• Top 10–20 domains requiring review
• Reason/marker for each suspicious domain
• Recommended action: Monitor / Investigate / Removal / Disavow

Where Ahrefs fits

I'd actually use Ahrefs alongside Semrush if backlink accuracy matters more than having a single "toxic score." Ahrefs explicitly does not use a generic spam/toxic score, because it considers those classifications too unreliable. Instead, it provides filters for known spammy domains, low-quality links, DR, organic traffic, etc. help.ahrefs.com

That makes Ahrefs excellent for the evidence behind your conclusion, while Semrush is better for the easy-to-read client report.

One important caveat

I wouldn't tell clients that "X toxic backlinks are hurting your rankings." A tool's toxicity score is a vendor heuristic, not a Google measurement. Even Ahrefs explicitly distinguishes its approach from the idea of a universal "toxic backlink" category. help.ahrefs.com

For local businesses especially, I'd label the section "Suspicious / potentially manipulative backlinks" rather than "Toxic links hurting SEO."

Best agency stack: Semrush for the deliverable + Ahrefs for validation. Majestic is a nice third source when you want Trust Flow/Citation Flow context; its Trust Flow is specifically designed as a link-quality metric. majestic.com

If you tell me whether you're delivering these as PDFs, Looker Studio dashboards, or monthly SEO reports, I can suggest a clean backlink/toxic-link report template that clients won't misinterpret.

If you're producing reports that clients actually read, the biggest differences between backlink tools are:

• How many links they find
• How useful their toxicity scoring is
• How clean and exportable the reports look

Here's how the major options compare.

1. Semrush (my top recommendation)

For client deliverables, this is probably the easiest.

Pros:

• Toxic Score that's understandable
• Categorizes links by risk
• Shows reasons a link is considered risky
• White-label PDF exports
• Easy disavow workflow
• Good charts for presentations

The reports are polished enough that many agencies use them with minimal editing.

One caveat: no automated toxicity system is perfect. Semrush can flag legitimate low-authority local citations, so it's worth reviewing before recommending disavows.

2. Ahrefs

Ahrefs has arguably the best backlink database, but it intentionally avoids assigning a "toxic" score.

Instead you'll evaluate:

• DR
• traffic
• anchor text
• link neighborhoods
• spam patterns

This makes it stronger for experienced SEOs but weaker if clients expect a simple "toxic links" section.

Many agencies actually pair:

• Ahrefs for backlink discovery
• Semrush for toxicity reports

3. SE Ranking

A surprisingly solid option if you manage many SMB clients.

Advantages:

• Link Health Score
• Toxicity indicators
• Automated monitoring
• Nice PDF reports
• White-label branding
• Much lower cost than Semrush

If budget matters, this is probably the best value.

4. LinkResearchTools (LRT)

This is still one of the deepest backlink audit platforms.

It excels at:

• penalty investigations
• manual action recovery
• sophisticated risk scoring
• historical analysis

Downside:

• steep learning curve
• expensive
• reports often need simplification before sending to clients

5. Moz

Moz's Spam Score is easy for clients to understand but shouldn't be treated as definitive.

It's useful as one signal among many rather than a standalone toxicity metric.

What experienced agencies typically include

Rather than saying "you have 437 toxic links," stronger reports usually classify links:

That approach is more defensible because search engines don't publish an official "toxicity" metric.

My recommended stack

If you're managing several local businesses:

• Best overall: Semrush
• Best data quality: Ahrefs
• Best budget option: SE Ranking
• Best for penalty work: LinkResearchTools
• Best reporting workflow: Semrush + Looker Studio (or your own branded report)

One additional point for local SEO: be careful not to classify low-authority but legitimate local citations (such as chamber of commerce listings, niche directories, or local business directories) as toxic simply because they have low metrics. For most local businesses, a manual review of links flagged as risky is an important step before recommending removal or submitting a disavow file.

If your goal is client-ready toxic backlink reports (not just internal analysis), the tools differ quite a bit in how polished and defensible their reporting is.

My recommendations

1. Semrush (best overall for deliverables)

If you're sending monthly SEO reports to local business owners, Semrush is probably the easiest.

Advantages:

• Dedicated Toxicity Score
• Explains why links are flagged (spam network, suspicious TLD, malware, etc.)
• One-click Keep / Remove / Disavow workflow
• White-label PDF reporting
• Google Search Console integration
• Easy exports for clients www.semrush.com

One caution: don't present every "toxic" link as something that must be disavowed. Google's guidance is that many low-quality links are simply ignored, and disavow is generally reserved for substantial spam or manual-action risks. www.reddit.com

2. Ahrefs (best data quality)

Ahrefs consistently has one of the largest and freshest backlink indexes.

Strengths:

• Finds links other tools miss
• Excellent lost/new backlink monitoring
• Anchor analysis
• Historical link data
• Great competitor comparisons

Weakness:

• Doesn't assign an aggressive "toxic score" like Semrush, so reports require more interpretation. www.techradar.com

3. SE Ranking (excellent agency value)

If you manage many SMB/local SEO clients:

• White-label reports
• Automated reporting
• Good backlink monitoring
• Solid toxicity indicators
• Lower cost than Semrush or Ahrefs

Many agencies find it offers one of the best price-to-feature ratios. www.techradar.com

4. LinkResearchTools

For difficult cases like:

• Previous black-hat SEO
• Manual penalties
• Large-scale cleanup projects

LRT provides extremely detailed risk analysis but has a steeper learning curve and can overwhelm typical local business clients. backlynk.io

A reporting workflow that clients understand

Instead of a long spreadsheet of "bad links," I recommend a one-page summary like:

• Backlinks analyzed: 4,812
• Healthy links: 4,401
• Links needing review: 267
• High-risk links: 38
• Actions taken: 12 removal requests, 26 monitored
• Overall backlink health: Good / Fair / Needs Attention

Then include:

• Top new quality links
• Lost valuable links
• Highest-authority referring domains
• Toxic domains requiring review
• Competitor link growth

This format is usually easier for local business owners to understand than raw exports.

If I were choosing for an agency

• Highest-quality backlink data: Ahrefs
• Best toxic-link reports for clients: Semrush
• Best value across multiple local SEO clients: SE Ranking
• Best enterprise-grade link risk analysis: LinkResearchTools

For agencies with dozens of local clients, a common setup is Ahrefs + Semrush: use Ahrefs for discovery and competitor research, and Semrush for backlink audits and polished client-facing toxic-link reports.

If you're creating reports for local SEO clients, I'd prioritize tools that separate "links to review" from "links that are definitely harmful." Google has repeatedly said it ignores most spammy backlinks automatically, so reports that label thousands of links as "toxic" without context can create unnecessary client concern. www.semrush.comwww.reddit.com

Here's how I'd rank the major options for agency deliverables:

1. Semrush (my top recommendation)

For agency reporting, this is still the easiest workflow.

Pros:

• Toxicity Score with explanations
• Filters by suspicious patterns
• Disavow file generation
• PDF and white-label reporting
• Integrates with Google Search Console for better coverage

The reports are easy for clients to understand because they categorize links as:

• Healthy
• Potentially toxic
• Review recommended
• Removed/disavowed

The biggest advantage is that you can show why a domain was flagged rather than just assigning a score. www.semrush.com

2. Ahrefs

Ahrefs has arguably the strongest backlink database, but it's intentionally less aggressive about calling links "toxic."

Instead it excels at:

• spam patterns
• anchor text
• DR
• traffic
• link velocity
• referring domain quality

Many experienced SEOs prefer this because they manually evaluate questionable links rather than trusting automated toxicity scores. digitalconvey.comwww.reddit.com

3. SE Ranking

A great value if you have many SMB clients.

Strengths:

• White-label reports
• Backlink monitoring
• Toxic backlink indicators
• Agency dashboard

It's especially attractive if you're already using it for rank tracking and local SEO. www.techradar.com

4. LinkResearchTools (LRT)

If you audit sites hit by:

• manual penalties
• legacy link-building campaigns
• negative SEO

LRT remains one of the most detailed options available.

Downsides:

• expensive
• steeper learning curve
• overkill for most local businesses www.semrush.comwww.reddit.com

My agency workflow

For local businesses, I'd avoid sending clients a raw "2,000 toxic backlinks" report. Instead, I structure reports like this:

• Backlink health score
• Total referring domains
• New vs. lost links
• High-authority links earned
• Domains requiring manual review
• Confirmed spam links (only those with clear patterns like hacked sites, link farms, or obvious PBNs)
• Recommended actions (monitor, outreach, disavow only if warranted)

That keeps the report actionable instead of alarming.

Recommended stack

If budget allows:

• Semrush for backlink audits and client-facing toxic-link reports
• Ahrefs for validating backlink quality and competitor analysis
• Google Search Console as the source of links Google actually reports seeing for the site

Using Semrush's toxicity scoring alongside Ahrefs' backlink intelligence gives you a balanced view without relying solely on automated "toxic" labels. www.semrush.com

For local SEO client deliverables, you’ll want backlink tools that (1) export polished reports, (2) clearly explain toxic/spam signals, and (3) let you show clients actionable cleanup recommendations without overwhelming them.

Here are the strongest options:

My usual agency shortlist

Best overall for client-facing toxic-link reports:
Semrush

• Toxicity Score is easy to turn into a monthly “link health” section.
• Lets you categorize links (remove, disavow, keep).
• Reports are understandable for non-SEOs.

Best if you already use Ahrefs:
Ahrefs

• Better raw backlink database in many niches.
• Excellent for finding competitor links and local citations.
• You may need to translate metrics into client language.

Best inexpensive client-reporting option:
SE Ranking

• Often fits small-business SEO retainers where you need many client projects.

A client-friendly toxic backlink report format

Instead of sending a raw “1,200 toxic links” export, I’d package it as:

1. Backlink health summary
   • Total referring domains
   • New/lost links
   • Toxic links detected
   • Risk level

2. Priority actions
   • Remove: obvious paid/spam links
   • Monitor: questionable but harmless links
   • Keep: authoritative/local mentions

3. Examples
   • 5–10 representative toxic links
   • Why they were flagged
   • Recommended action

4. Local SEO context
   • Important local directories/citations
   • Local news/community links
   • Industry-relevant links

One caution: “toxic” scores are third-party estimates, not Google penalties. For local businesses especially, many low-authority links are normal (directories, local organizations, scraped listings) and shouldn’t automatically be removed.

For a multi-client local SEO agency, I’d typically choose Semrush for deliverables + Ahrefs for deeper link research if budget allows.

If your goal is client-facing deliverables, the best tools are not necessarily the ones with the most aggressive "toxic" scoring—they're the ones that produce reports clients can understand and that minimize false positives.

Here's how the major options compare:

My recommendations by workflow

For agencies managing many local businesses

Semrush is probably the strongest overall choice because:

• Automated Toxic Score
• Categorizes links by risk level
• Suggests removal vs. disavow candidates
• White-label PDF reports
• Historical tracking
• Integrates well with regular SEO audits

Clients generally understand its visual reports without much explanation.

If you prefer fewer false positives

Ahrefs is excellent because it doesn't aggressively label links as "toxic."

Instead, you can explain issues using metrics like:

• DR
• Referring domains
• Anchor text
• Organic traffic
• Link placement

Many experienced SEOs prefer this approach because Google's algorithms generally ignore many low-quality links rather than penalizing sites for them.

For local SEO agencies

SE Ranking offers strong value if you're managing dozens of local businesses:

• Unlimited scheduled reports on many plans
• White-label options
• Backlink monitoring
• Toxicity indicators
• Local ranking tools
• Lower cost than Semrush

For very large cleanup projects

If you're auditing sites that have:

• thousands of spam backlinks,
• a history of link buying,
• or previous manual actions,

LinkResearchTools remains one of the deepest platforms available. Its classifications are powerful, though they often require interpretation before sharing with clients.

A reporting approach clients appreciate

Instead of focusing on "Your site has 437 toxic backlinks," structure reports around impact:

• Healthy backlinks: 1,240
• Potentially risky backlinks: 38
• High-priority links for review: 9
• Links recommended for removal/disavow: 5
• Overall backlink trend: Improving / Stable / Declining

This emphasizes actionable findings and avoids overstating risk, since automated toxicity scores can produce false positives.

Best combination for local SEO

If budget allows, a combination of:

• Semrush for audits, toxic-link detection, and client reporting.
• Ahrefs for backlink research, competitor analysis, and validating suspicious links.

That pairing gives you both polished client deliverables and a second opinion before recommending link removals or disavows.