ChatGPT answers, unedited

For a one-off technical SEO audit on a tight budget, you can get surprisingly far without buying an expensive SEO suite. I’d use a small stack rather than trying to make one tool do everything.

My budget stack

• Google Search Console — $0: Your first stop. Use it for indexing, sitemap status, Core Web Vitals, search visibility, and URL Inspection. URL Inspection lets you see how Google currently knows about a specific URL and test its live indexability. Google Help Google Help

search.google.com

• Ahrefs Free — $0: Probably the best free all-round complement to Search Console. For a verified site, its Site Audit checks 170+ technical/on-page issues and allows 5,000 crawl credits per month; Site Explorer also gives you organic keywords, top pages, and backlink information. Ahrefs Ahrefs Help Center

ahrefs.com

• Screaming Frog SEO Spider — $0 for up to 500 URLs: Particularly useful for an ecommerce crawl. It can expose broken links, redirects, duplicate pages, title/meta problems, robots directives, canonicals, and other crawl/indexation issues. The free version handles 500 URLs per crawl. Screaming Frog Screaming Frog

screamingfrog.co.uk

• Google PageSpeed Insights — $0: Use it on your homepage plus representative product, category, and checkout-adjacent pages. Pay particular attention to Core Web Vitals, rather than obsessing over the overall Lighthouse score.

pagespeed.web.dev

The audit I'd actually run

For a small store, I'd do it in this order:

1. Search Console: Look for indexing anomalies, excluded pages, sitemap problems, Core Web Vitals issues, and pages receiving impressions but little/no traffic.
2. Screaming Frog: Crawl the site and export URLs, status codes, canonicals, titles, meta descriptions, H1s, directives, and internal links.
3. Ahrefs: Run Site Audit and use the results to catch issues the crawler may not make as obvious; check backlinks and your important organic landing pages too. Ahrefs
4. PageSpeed: Test several types of ecommerce pages, not just the homepage.
5. Manually inspect: robots.txt, XML sitemap, canonical tags, pagination/faceted navigation, structured data, redirects, and a handful of important product/category pages.
6. Prioritize: Don't hand the store owner a list of 200 warnings. Separate findings into critical indexing problems → high-impact technical problems → worthwhile improvements → low-priority cleanup.

One important ecommerce caveat

Faceted navigation is often where small ecommerce audits get messy. Filters can generate thousands of URL variations, duplicate content, crawl waste, and indexation problems. I'd specifically investigate whether your filters/search parameters are creating URLs that Google can discover and crawl unnecessarily.

If you want to spend literally $0: Search Console + Ahrefs Free + Screaming Frog + PageSpeed is enough for a credible one-off audit of a small store. You don't need Semrush/Ahrefs' paid tiers just to perform the initial technical investigation. Ahrefs Screaming Frog

If you tell me what platform the store runs on (Shopify, WooCommerce, Magento, etc.) and roughly how many products/URLs it has, I can give you a step-by-step audit checklist tailored to that platform, including exactly what to check and what to ignore.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one SEO suite. You can get a very solid audit for $0, especially if your store is under a few thousand URLs.

My budget stack

1. search.google.com — free

• Check which pages Google has indexed.
• Look for indexing/exclusion problems.
• Review sitemap status.
• Check Core Web Vitals and mobile issues.
• Look at queries/pages actually generating organic traffic.

This should be your source of truth for what Google is actually seeing.

2. screamingfrog.co.uk — free for up to 500 URLs

• Crawl your site like a search engine.
• Find 404s, redirect chains, duplicate URLs, missing titles/meta descriptions, bad canonicals, etc.
• Export everything to Excel/Google Sheets.

The free version currently crawls up to 500 URLs per crawl. Screaming Frog Screaming Frog

3. ahrefs.com — free

• Particularly useful as a second crawler to catch things you might miss in Screaming Frog.
• Its free verified-site account includes Site Audit with 5,000 crawl credits/month and checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center
• It also gives you useful backlink and organic-keyword information for your own site.
• pagespeed.web.dev — free

• Test your homepage plus representative product, category and content pages.
• Pay particular attention to Core Web Vitals rather than obsessing over the overall Lighthouse score.
• search.google.com — free

• Check product structured data.
• For ecommerce, I'd specifically verify Product, price, availability, reviews where applicable, and other structured data you're actually eligible to use.

What I'd actually do

For a small ecommerce site, I'd spend the audit time roughly like this:

One important ecommerce warning

Don't blindly fix every warning these tools produce.

Ecommerce sites naturally generate lots of URLs through filters, sorting, search, variants, pagination, tracking parameters, etc. A crawler can make these look like problems when they're actually deliberate parts of the site's architecture.

I'd prioritize:

1. Indexability → 2. Crawlability → 3. Canonicals/duplicates → 4. Internal linking → 5. Structured data → 6. Core Web Vitals → 7. On-page cleanup.

If your store is over 500 URLs, I'd use Screaming Frog only for targeted/representative crawls and let the free Ahrefs crawl handle the larger audit. Ahrefs currently allows 5,000 crawl credits per verified project per month. Ahrefs Help Center

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a $0 audit checklist specifically for that platform, including exactly what to check and in what order.

For a one-off ecommerce audit, I’d spend $0 initially:

• Google Search Console — indexing, sitemap, queries, Core Web Vitals.
• Screaming Frog SEO Spider — crawl your store for broken links, redirects, canonicals, duplicate/missing titles, metadata, etc. Free up to 500 URLs. SeekLab
• Google PageSpeed Insights — Core Web Vitals and performance.
• Ahrefs Webmaster Tools — free site audit + backlinks after verifying ownership. Ahrefs
• Google Rich Results Test — check product/review/schema markup.

If your catalog exceeds 500 URLs: consider a one-month Ahrefs/Semrush/Sitebulb subscription, run the full crawl, export everything, then cancel. For a genuinely one-off audit, that’s usually better value than maintaining a subscription. Cloudways

For ecommerce specifically, prioritize indexation, faceted/filter URLs, canonicalization, product schema, duplicate product/category content, pagination, internal linking, redirects, and Core Web Vitals.

For a one-off ecommerce technical SEO audit on a tight budget, you can do most of it for $0:

• search.google.com — indexing, crawl issues, sitemap, Core Web Vitals, search performance. Google Help Google
• screamingfrog.co.uk — crawl up to 500 URLs free; find broken links, redirects, duplicate/missing titles, canonicals, robots directives, etc. Screaming Frog
• pagespeed.web.dev — check mobile/desktop performance and Core Web Vitals. Google for Developers
• search.google.com — validate Product/structured-data markup. Google Help

My budget workflow: Search Console → Screaming Frog → PageSpeed on homepage + key category/product pages → Rich Results Test → consolidate findings into a prioritized fix list.

You don't need Ahrefs/Semrush for a technical-only one-off audit unless you also want backlink/keyword research.

For a one-off technical SEO audit on a tight budget, I’d avoid buying an expensive all-in-one SEO suite. You can get a very solid audit with mostly free tools.

My recommended stack

1. Start with Search Console

This is the most important one because it tells you what Google actually sees, rather than just what an SEO crawler thinks.

Check:

• Pages indexed vs. not indexed
• Indexing errors and exclusions
• Sitemap status
• Canonical selected by Google vs. your declared canonical
• Core Web Vitals
• Search queries/pages losing traffic
• Manual actions/security issues
• Individual important product/category URLs with URL Inspection

URL Inspection can test the live version of a URL and help diagnose why a page isn't appearing in Google. Google Help

2. Crawl the store with Screaming Frog

For a small ecommerce site, this is probably the best free crawler.

The free version crawls up to 500 URLs per crawl and checks things such as broken links, redirects, page titles/meta descriptions, robots directives, hreflang, duplicate pages and XML sitemaps. Screaming Frog Screaming Frog

Pay particular attention to ecommerce-specific problems:

• Product pages returning 404/410
• Chains of redirects
• Redirects pointing to irrelevant products
• Duplicate product URLs
• Filter/faceted-navigation URLs creating thousands of crawlable pages
• Missing/duplicate title tags
• Missing canonicals
• Canonicals pointing somewhere unexpected
• Orphaned products
• Pagination problems
• Internal links to redirected URLs
• Thin category pages
• Accidental noindex
• Robots.txt blocking important resources/pages

If your store has more than 500 URLs, you can still use the free version strategically—crawl important sections separately rather than immediately paying.

3. Run Ahrefs Free as a second opinion

ahrefs.com is particularly useful because its Site Audit can identify 170+ technical/on-page issues, with up to 5,000 crawl credits per verified project per month on the free account. Ahrefs Ahrefs Help Center

I'd use it after Screaming Frog rather than instead of it. The overlap helps you distinguish genuine problems from crawler-specific warnings.

It also gives you useful backlink and organic-keyword information for your own verified site.

4. Check speed manually

Use PageSpeed Insights on:

• Homepage
• One major category page
• One representative product page
• Cart/important landing pages where appropriate

Don't obsess over getting a perfect Lighthouse score. For ecommerce, I'd prioritize real Core Web Vitals problems and things that materially affect crawling or user experience.

Look especially for:

• Slow Largest Contentful Paint
• Cumulative Layout Shift
• Excessive JavaScript
• Huge product/hero images
• Render-blocking resources
• Third-party scripts/apps

The audit I'd actually perform

If I were doing this for your store, I'd structure the one-off audit into five passes:

1. Indexation

• Is Google able to discover and index the pages that matter?
• Are valuable products/categories excluded?
• Are junk URLs being indexed?
• Crawlability

• robots.txt
• XML sitemap
• internal linking
• redirects
• 4xx/5xx errors
• faceted navigation
• On-page technical SEO

• titles
• meta descriptions
• H1s
• canonicals
• duplicate URLs
• pagination
• structured data
• Performance

• Core Web Vitals
• mobile rendering
• image sizes
• JavaScript/apps
• third-party scripts
• Ecommerce architecture

• Category → subcategory → product hierarchy
• Orphan products
• Out-of-stock product handling
• Product variants
• Facets/filters
• Internal linking
• Product and Organization schema

If you can spend ~$30

I'd still start with the free stack.

If the site is under ~500 URLs, you may genuinely need $0 to perform a worthwhile technical audit.

If you want additional competitive/keyword data for the audit, help.ahrefs.com is currently listed at $29/month, and you could use it for a single month and cancel afterward. Ahrefs Help Center

My $0 setup: Search Console + Screaming Frog + Ahrefs Free + PageSpeed Insights.

That combination is more than enough to uncover the majority of technical SEO problems I'd expect on a small ecommerce store.

For a one-off ecommerce technical SEO audit on a tight budget, I’d spend $0 and use this stack:

• Google Search Console — indexing, sitemap, canonical issues, search performance, Core Web Vitals. Essential first-party data. SeekLab AEOeye
• Screaming Frog SEO Spider — crawl your store for broken links, redirects, duplicate/missing titles, canonicals, indexability and internal-link problems. The free version handles up to 500 URLs. Ighenatt
• Ahrefs Webmaster Tools — free for verified sites; useful for technical issues and backlinks. Ottawa SEO Inc.
• PageSpeed Insights — check Core Web Vitals and performance, especially product/category templates. AEOeye
• Rich Results Test — validate product, review, breadcrumb and other structured data.

My workflow: GSC → Screaming Frog → PageSpeed → Ahrefs → manually inspect 5–10 important product/category pages.

For a small store, I wouldn't pay for Semrush/Ahrefs yet unless you specifically need competitor/keyword research. Free tools cover most of a one-off technical audit. angletutoring.com

For a one-off technical SEO audit on a small ecommerce store, I would avoid paying for an expensive all-in-one SEO suite. A lean stack can cover most important issues for little or no money. Ighenatt Arbor

Recommended low-budget stack

1. Google Search Console — free (must-have)

Use it first because it shows what Google actually knows about your site.

Check:

• Indexing problems (pages excluded, “crawled but not indexed”)
• Sitemap status
• Manual actions/security issues
• Core Web Vitals
• Search queries and pages losing traffic

Cost: $0
Best for: finding issues that actually affect Google visibility. AlphansoLabs |

2. Screaming Frog SEO Spider — free version

This is probably the highest-value tool for a one-time technical crawl.

Use it to find:

• Broken links (404s)
• Redirect chains
• Missing/duplicate title tags
• Missing meta descriptions
• Duplicate pages
• Canonical problems
• Indexability issues
• Orphaned pages (with additional analysis)

The free version crawls up to 500 URLs, which is enough for many small stores. Rankture

Cost:

• $0 if your store is small
• Paid version only if you need a full crawl of thousands of products

3. Google PageSpeed Insights — free

Run it on:

• Homepage
• Top category pages
• Best-selling product pages
• A slow-looking page

Look for:

• Large images
• Slow JavaScript
• Layout shifts
• Poor mobile performance

Cost: $0 BigCommerce

4. Rich Results Test / Schema Validator — free

Important for ecommerce because product pages can benefit from structured data.

Check:

• Product schema
• Price
• Availability
• Reviews
• Breadcrumb schema

Cost: $0 BigCommerce

5. Ahrefs Webmaster Tools (optional free add-on)

Useful if you also want:

• Backlink overview
• Broken backlinks
• Additional site health checks

Cost: $0 for verified sites (with limitations). SeekLab

My suggested audit workflow

Hour 1: Google checks

• Open Search Console
• Export: - Pages indexed
• Excluded pages
• Top-performing pages
• Core Web Vitals issues

Hour 2: Crawl the store

Run Screaming Frog and export:

• Internal HTML
• Response codes
• Page titles
• Meta descriptions
• Canonicals
• H1s

Hour 3: Ecommerce-specific checks

Focus on:

• Are product pages indexed?
• Are category pages stronger than individual products?
• Are filters creating thousands of duplicate URLs?
• Are discontinued products handled correctly?
• Are variants canonicalized properly?
• Are important products buried too many clicks deep?

Hour 4: Speed + structured data

Test:

• Homepage
• Category page
• Product page

Fix the biggest issues first.

If you can spend a little money (one month only)

For a single serious audit, I’d consider:

• Semrush trial/month — useful for broader SEO data, competitors, and site auditing
• Ahrefs trial/month — useful for backlinks and keyword visibility
• Sitebulb trial — useful if you want prettier audit reports and visual site architecture

But I would not keep paying monthly unless SEO is a major growth channel.

For most small ecommerce stores, the $0 stack of Search Console + Screaming Frog + PageSpeed Insights + schema checks is enough to uncover the high-impact technical problems. Arbor

If you tell me your platform (Shopify, WooCommerce, BigCommerce, custom, etc.) and approximate number of products/URLs, I can suggest a more specific audit checklist.

For a one-off ecommerce technical SEO audit on a tight budget, I’d avoid expensive all-in-one SEO suites. You can get a very solid audit for $0–$200, especially if your store is a few thousand URLs or smaller.

My budget stack

1. Google Search Console — free

• Check indexing and coverage.
• Find pages Google is excluding.
• Inspect important product/category URLs individually.
• Review sitemap status.
• Check Core Web Vitals and search performance.
• Look for manual actions/security issues.

This should be your source of truth for what Google is actually seeing.

2. Screaming Frog SEO Spider — free for ≤500 URLs

screamingfrog.co.uk

This would be my first paid/technical tool choice if your store is small. The free version crawls up to 500 URLs and checks things like broken links, redirects, titles, meta descriptions, robots directives, hreflang and duplicate pages. Screaming Frog Screaming Frog

For a one-off audit, you may not need to buy it at all.

3. Google PageSpeed Insights / Lighthouse — free

• Core Web Vitals
• Mobile performance
• JavaScript problems
• Render-blocking resources
• Image optimization
• Basic accessibility/best-practice checks

Test your homepage, a category page, a product page and ideally a representative content page, rather than just the homepage.

4. Rich Results Test — free

Use Google's structured-data testing to check product/schema markup. For ecommerce, pay particular attention to:

• Product
• Offer
• Review/rating markup
• Breadcrumbs
• Organization
• Merchant-related structured data
• XML sitemap + robots.txt checks — free

You can do much of this manually. Make sure your sitemap contains canonical, indexable URLs, rather than thousands of parameter/filter URLs, redirects, discontinued pages, etc.

If your store is >500 URLs

I'd actually consider using Sitebulb for its 14-day trial rather than immediately paying for a crawler. Its current trial provides the full desktop feature set for 14 days, and it specifically supports ecommerce auditing. Sitebulb Sitebulb

sitebulb.com

For a one-off audit, that's potentially enough time to crawl the store, export the findings and produce your recommendations. Sitebulb's current Lite plan supports up to 10,000 URLs, while Pro supports much larger crawls. Sitebulb

What I'd actually spend money on

If you have $0:
Search Console + Screaming Frog free + PageSpeed Insights + Rich Results Test

If you have ~$100–200:
Use Sitebulb's trial first, then only pay for something if you discover you need more crawling/reporting capability.

I wouldn't spend money on Ahrefs/Semrush just for this particular job unless you also want to do keyword research, competitor analysis and backlink analysis. They're useful, but they're overkill for a purely technical one-off audit.

The ecommerce-specific checks I'd prioritize

Don't let the crawler generate a 200-page list of minor SEO warnings. I'd concentrate on:

• Indexation: Are valuable product/category pages actually indexable?
• Canonicalization: Especially variants, filters, parameters and duplicate product URLs.
• Faceted navigation: This is a major ecommerce crawl-budget/indexation trap.
• Product availability: What happens to discontinued/out-of-stock products?
• Pagination/category architecture
• Internal linking: Can Google reach your important products efficiently?
• Orphan pages
• Duplicate/thin product pages
• 4xx/5xx errors and redirect chains
• XML sitemap quality
• robots.txt
• Canonical + noindex conflicts
• Product structured data
• Core Web Vitals/mobile performance
• Image size and image indexing
• HTTPS/mixed-content issues
• JavaScript-rendered content
• Search/filter URLs creating crawl explosions

For a small store, I'd much rather have a 10–20 item prioritized fix list than a giant automated audit with 500 warnings.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a $0 audit workflow with the exact checks to run and what to look for in each tool.

If you have ~$100–200:
Use Sitebulb's trial first, then only pay for something if you discover you need more crawling/reporting capability.

I wouldn't spend money on Ahrefs/Semrush just for this particular job unless you also want to do keyword research, competitor analysis and backlink analysis. They're useful, but they're overkill for a purely technical one-off audit.

The ecommerce-specific checks I'd prioritize

Don't let the crawler generate a 200-page list of minor SEO warnings. I'd concentrate on:

• Indexation: Are valuable product/category pages actually indexable?
• Canonicalization: Especially variants, filters, parameters and duplicate product URLs.
• Faceted navigation: This is a major ecommerce crawl-budget/indexation trap.
• Product availability: What happens to discontinued/out-of-stock products?
• Pagination/category architecture
• Internal linking: Can Google reach your important products efficiently?
• Orphan pages
• Duplicate/thin product pages
• 4xx/5xx errors and redirect chains
• XML sitemap quality
• robots.txt
• Canonical + noindex conflicts
• Product structured data
• Core Web Vitals/mobile performance
• Image size and image indexing
• HTTPS/mixed-content issues
• JavaScript-rendered content
• Search/filter URLs creating crawl explosions

For a small store, I'd much rather have a 10–20 item prioritized fix list than a giant automated audit with 500 warnings.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a $0 audit workflow with the exact checks to run and what to look for in each tool.

If it’s a one-off technical SEO audit and money is tight, I wouldn’t buy a big SEO suite. You can get a very solid audit for $0, especially for a small ecommerce site.

My budget stack

Screaming Frog's free version crawls up to 500 URLs and checks 300+ SEO issues, which is plenty for many small stores. Screaming Frog Screaming Frog

Ahrefs Free is particularly useful now because verified sites get 5,000 crawl credits/month and access to Site Audit, which checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center

What I'd actually do

1. Start with Search Console.

Look specifically at:

• Pages excluded from indexing
• noindex pages that shouldn't be noindexed
• Sitemap errors
• 404/soft-404 pages
• Pages crawled but not indexed
• Manual/security issues
• Core Web Vitals
• Your highest-impression pages with poor CTR

Search Console is especially valuable because it tells you how Google actually sees your site, rather than just what a crawler thinks. Google Google Help

2. Run Screaming Frog.

For an ecommerce store, I'd prioritize:

• 4xx/5xx errors
• Redirect chains and loops
• Broken internal links
• Missing/duplicate title tags
• Missing/duplicate meta descriptions
• Multiple or missing H1s
• Canonical problems
• Indexability
• Orphan-like pages
• Pagination
• Internal-link structure
• Image sizes/alt text
• XML sitemap URLs
• Product/category URL patterns

Export the crawl to Excel/Sheets so you can turn findings into an actionable fix list.

3. Run Ahrefs Site Audit as a second opinion.

Don't blindly fix every warning. Use it to catch things Screaming Frog/Search Console missed and to get a broader picture of technical problems. Ahrefs says its audit covers issues involving indexability, redirects, links, images, robots, sitemaps, structured data, Core Web Vitals, and more. Ahrefs

4. Manually inspect your important ecommerce templates.

This is the part automated audits often miss.

Check at least:

• Homepage
• One category/collection page
• 3–5 important product pages
• Search results page
• Cart
• Any major informational/landing pages

For products, pay particular attention to canonical tags, Product/Offer structured data, availability/price markup, indexability, variants, duplicate product URLs, and internal links.

If you have $30–50 to spend

I still wouldn't immediately subscribe to an SEO platform.

For a one-off audit, free tools + your time will usually give you more value than paying for a month of a massive suite. If you want paid competitive/keyword research as part of the audit, that's when a temporary Ahrefs/Semrush subscription becomes more worthwhile.

The deliverable I'd aim for

Don't produce a 100-page "SEO audit." Make a spreadsheet like:

For a small store, I'd prioritize anything affecting indexation, crawlability, canonicalization, product discovery, and page speed before worrying about minor metadata warnings.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a specific $0 audit workflow and checklist for your store.

For a one-off technical SEO audit on a tight budget, I wouldn’t buy an expensive all-in-one SEO subscription. You can get a surprisingly solid audit for $0 using a small stack.

My $0 stack

1. search.google.com — essential

• Indexing and crawl issues
• Pages Google has/hasn't indexed
• Search queries, clicks and impressions
• Sitemap status
• Core Web Vitals
• Structured-data issues

This is the most important tool because it shows what Google actually knows about your store.

2. ahrefs.com — best free crawler

• Crawls your site for 170+ technical/on-page issues
• Broken links, redirects, duplicate pages, canonicals, robots.txt, sitemaps, structured data, etc.
• For verified sites, you currently get 5,000 crawl credits/month. Ahrefs Ahrefs Help Center

For a small ecommerce site, this may be enough to do the entire audit.

3. screamingfrog.co.uk — excellent second opinion

• The free version crawls up to 500 URLs
• Particularly useful for titles, meta descriptions, H1s, canonicals, redirects, broken links, duplicate pages and indexability. Screaming Frog Screaming Frog

I'd use this even if Ahrefs finds everything—it gives you raw crawl data that is easy to inspect/export.

4. pagespeed.web.dev — performance

Test your:

• Homepage
• Best-selling product page
• Main category/collection page
• A representative mobile page

Don't obsess over getting a perfect Lighthouse score. For ecommerce, pay particular attention to Core Web Vitals and real-user performance.

What I'd actually do

For a one-off audit, I'd spend roughly 2–4 hours and produce a prioritized spreadsheet:

One ecommerce-specific warning

Don't blindly "fix" every issue the crawlers report. Ecommerce sites naturally generate lots of URLs through filters, sorting, variants, search, pagination and tracking parameters. The important question is:

Which URLs should Google be able to discover, crawl and index?

That's much more valuable than trying to get an Ahrefs/Screaming Frog health score to 100%.

If you can spend a little

For a one-off audit, I'd still start with the free stack. If your store has more than ~500 URLs, Ahrefs Free is particularly attractive because its current allowance is 5,000 crawl credits per verified project/month. Ahrefs

I would not pay for Semrush/Ahrefs/Screaming Frog just to perform one small-store audit unless you specifically need competitor/keyword research or your site is large.

If you tell me what ecommerce platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a step-by-step $0 audit checklist tailored to it.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one SEO suite. You can get a very solid audit with free tools.

My budget stack

1. Google Search Console — free

• Check indexing problems and pages Google has excluded.
• Review sitemap status.
• Look for crawl/indexing errors.
• Check which product/category pages actually get impressions and clicks.
• Inspect important URLs individually.

This should be your source of truth for what Google is actually doing with your store.

2. Screaming Frog SEO Spider — free

screamingfrog.co.uk

The free version crawls up to 500 URLs, which is often enough for a small ecommerce site. It can identify things like broken links, redirects, duplicate/missing titles and meta descriptions, canonicals, headings, response codes, and other technical problems. Screaming Frog Screaming Frog

For a one-off audit, I'd probably make this your main crawler.

3. Ahrefs Free — free

ahrefs.com

If you verify ownership of your site, Ahrefs currently provides a free Site Audit with 5,000 crawl credits/month, plus backlink and organic-search data. Its audit covers 170+ technical/on-page issues. Ahrefs Ahrefs Help Center

This is useful as a second opinion after Screaming Frog.

4. Google PageSpeed Insights — free

pagespeed.web.dev

Test your homepage plus several representative product and category pages. Pay particular attention to mobile performance and Core Web Vitals rather than obsessing over getting a perfect 100 score.

What I'd actually do

For a small store, I'd spend $0 initially and produce a spreadsheet with these sections:

One important ecommerce-specific warning

Don't blindly "fix" every issue that an SEO crawler reports.

Ecommerce sites naturally generate lots of URLs from filters, sorting, search, variants, pagination, tracking parameters, etc. Some of those should be crawlable/indexable and others shouldn't. The goal isn't a 100% audit score—the goal is making sure valuable product/category URLs can be discovered, crawled, indexed and ranked while low-value URL variants don't create unnecessary problems.

If you have ~$30 to spend

I'd still start with the free stack. If you want more competitive/keyword data for the audit, Ahrefs' current Starter plan is $29/month, and you can cancel afterward. Ahrefs Help Center

But for a one-off technical audit, I wouldn't pay for Semrush/Ahrefs/etc. unless your store is large or you specifically need competitor/keyword research.

If you tell me roughly how many products/URLs your store has and whether it's Shopify, WooCommerce, BigCommerce, or something else, I can give you a step-by-step $0 audit checklist tailored to it.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for an all-in-one platform. You can get most of what you need for $0 with a small stack.

My budget stack

Screaming Frog is probably the most valuable tool for the actual audit. Its free version crawls up to 500 URLs and checks things like broken links, redirects, titles/meta data, robots directives, duplicates and hreflang. Screaming Frog Screaming Frog

The audit I'd actually run

1. Start with Search Console

Check:

• Page indexing → excluded/error URLs
• Sitemap status
• URL Inspection on your homepage, category pages and several product pages
• Core Web Vitals
• Search queries/pages getting impressions but few clicks
• Any sudden indexing or traffic problems

Search Console gives you Google's own view of crawling, indexing and search performance, while the Core Web Vitals report uses real-user data. Google Help Google Help

2. Crawl the store with Screaming Frog

Export the crawl and look specifically for:

• 4xx/5xx pages
• Redirect chains and loops
• 301/302 redirects
• Missing/duplicate title tags
• Missing/duplicate meta descriptions
• Missing H1s
• Canonical problems
• noindex pages that shouldn't be noindexed
• Pages blocked by robots.txt
• Orphan-looking product/category pages
• Very deep pages
• Duplicate or near-duplicate URLs
• Internal links pointing to redirects or broken URLs

For ecommerce, I'd pay particular attention to faceted navigation, URL parameters, duplicate product URLs, pagination, canonicalization and thin category pages.

3. Run Bing's Site Scan as a second opinion

It's free and crawls the site for common technical SEO problems, with errors/warnings separated by severity. Search - Microsoft Bing

It's useful because a second crawler can expose things your primary crawl configuration missed.

4. Check performance separately

Use Lighthouse on:

• Homepage
• One major category page
• One product page
• Cart/important conversion page

Don't obsess over getting a perfect Lighthouse score. For SEO, I'd prioritize real Core Web Vitals data in Search Console where available, then investigate the biggest performance bottlenecks.

What I would not buy for a one-off audit

You probably don't need Ahrefs, Semrush, Sitebulb, Moz Pro, etc. for this particular job unless you also want competitive backlink/keyword research.

For a small store, I'd rather spend the money on having someone interpret the crawl and prioritize fixes than spend it on a $100+/month SEO platform.

A very practical workflow is:

Search Console → Screaming Frog → Bing Site Scan → Lighthouse → spreadsheet → prioritized fixes.

If you tell me roughly how many products/URLs your store has and whether you're on Shopify, WooCommerce, or another platform, I can give you a specific $0 audit checklist and exactly what to export/check in each tool.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one SEO suite. You can get a surprisingly thorough audit for $0–$30.

My budget stack

• search.google.com — Free

• Your most important source of truth for Google indexing.
• Check: - Indexing/page exclusions
• Sitemap status
• Manual actions/security issues
• Search queries and pages
• Core Web Vitals
• Mobile usability
• URL Inspection for important product/category pages
• ahrefs.com — Free

• Probably the best single free audit tool for your situation.
• Its Site Audit can crawl 5,000 pages/month on a verified site and checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center
• Particularly useful for finding broken links, redirects, duplicate pages, canonical problems, indexability issues, missing metadata, structured-data problems, and internal-linking opportunities.
• screamingfrog.co.uk — Free

• Excellent if your store has ≤500 URLs.
• The free version crawls up to 500 URLs and lets you inspect titles, meta descriptions, headings, status codes, redirects, canonicals, robots directives, etc. Screaming Frog Screaming Frog
• I especially like it for ecommerce because you can export the crawl into a spreadsheet and spot patterns across product/category pages.
• pagespeed.web.dev — Free

• Test your homepage plus representative product and category pages.
• Focus on actual Core Web Vitals and mobile performance rather than obsessing over the overall "score."
• For a store, pay particular attention to image weight, JavaScript, third-party apps/scripts, and layout shifts.

The audit I'd actually do

I'd spend a few hours and produce a spreadsheet with these columns:

For an ecommerce store, prioritize these

1. Indexation

• Are important product/category pages actually indexed?
• Are filters, search pages, cart/account pages being unnecessarily crawled/indexed?
• Is the XML sitemap clean?
• Canonicalization

• Especially important if you have variants, filters, sorting parameters, or duplicate product URLs.
• Faceted navigation

• This can create thousands of low-value URLs on ecommerce sites.
• Don't blindly index every combination of filters.
• Product/category architecture

• Make sure important products aren't buried several clicks deep.
• Check internal links from categories → subcategories → products.
• 404s, redirects and broken links
• Duplicate/thin pages

• Product variants, discontinued products, manufacturer descriptions, tag pages, etc.
• Structured data

• Product, Offer, Review, Breadcrumb and Organization markup where appropriate.
• Validate important templates rather than manually checking every product.
• Performance/Core Web Vitals

• Test mobile pages, especially product pages.
• Ecommerce apps, tracking scripts, chat widgets and huge product images are common culprits.
• Titles/meta/H1s

• Look for template-level problems rather than rewriting hundreds individually.
• Robots.txt + XML sitemap

• Make sure you're not accidentally blocking valuable content or submitting junk URLs.

What I'd spend money on

Probably nothing initially.

Ahrefs' free tier gives you enough for a one-off audit if you own/verify the site, and Screaming Frog gives you another independent crawl. Ahrefs Screaming Frog

If your store is over 500 URLs, I'd still start with Ahrefs Free. If you need more crawling capability or competitor research, Ahrefs' current Starter plan is listed at $29/month, so you could potentially pay for one month, perform the audit, export your findings, and cancel. Ahrefs Help Center

I would not buy Semrush/Ahrefs/etc. annually just to perform a one-off audit.

If you tell me what platform you're using (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a step-by-step $0 audit checklist specifically for your store.

For a one-off technical SEO audit on a small ecommerce store, I would avoid paying for an all-in-one SEO suite unless you plan to use it every month. A cheap stack of specialist tools will usually give you a better audit. SeekLab

My budget audit stack (mostly free)

SeekLab Shopify Shipping Calculator## How I’d run the audit

1. Start with Google Search Console

Check:

• Pages → indexed vs excluded
• “Crawled — currently not indexed” product/category pages
• Duplicate canonical issues
• Sitemap status
• Core Web Vitals problems
• Top-performing pages that have dropped

This gives you the issues Google itself sees. Delpuma

2. Crawl the store with Screaming Frog

For ecommerce, look specifically for:

• 404 pages
• Redirect chains
• Product pages with missing titles/descriptions
• Duplicate title tags (common with product variants)
• Missing H1s
• Incorrect canonical tags
• Noindex accidentally applied to collections/products
• Orphan pages (products with no internal links)

The free version is often enough for a small catalog because it can crawl up to 500 URLs. AuditZap

3. Test your money pages with PageSpeed Insights

Do not only test the homepage. Test:

• Homepage
• Best-selling product page
• Category/collection page
• Mobile version of each

Look for:

• Large product images
• Slow JavaScript apps/widgets
• Layout shifts from banners/popups
• Slow server response times

4. Validate ecommerce schema

Check that your products expose:

• Product name
• Price
• Availability
• Brand
• Reviews (if applicable)
• SKU/GTIN where relevant

Bad schema usually will not destroy rankings, but fixing valid structured data can improve search appearance.

Optional: spend $20–50 once if you want a nicer report

For a one-off professional-looking audit, consider:

• A short trial of a crawler such as sitebulb.com
• A one-month subscription to a larger suite, export everything, then cancel

I would not pay for:

• Monthly Ahrefs/Semrush plans unless you need ongoing keyword research
• Generic “SEO score” tools that only give a grade without crawl data

What your final audit document should contain

Keep it simple:

1. Critical fixes

• Indexing blockers
• Broken checkout/product URLs
• Canonical mistakes
• Robots.txt problems
• Revenue-impact fixes

• Slow product pages
• Poor category structure
• Weak internal linking
• Duplicate product content
• Nice improvements

• Metadata rewrites
• Image optimization
• Schema enhancements

A realistic budget: $0–$50 and one afternoon of work for a small store. SeekLab

If you tell me your platform (Shopify, WooCommerce, Etsy + site, Magento, custom, etc.) and approximate number of products, I can suggest a tighter audit checklist.

For a one-off technical SEO audit on a small ecommerce store, I would avoid expensive all-in-one SEO suites unless you plan to use them monthly. A strong audit can be done for little or no money with a small tool stack. SeekLab ContentForce Blog

My tight-budget audit stack

SeekLab ContentForce Blog## If you only spend money on one thing

For a single professional-quality audit, I’d consider:

• Screaming Frog paid license for a month if your store has more than a few hundred URLs or needs JavaScript crawling.
• A one-month subscription to Semrush or Ahrefs if you also want competitor research, keyword gaps, and backlink analysis. These are more useful if you intend to keep improving SEO afterward. Semrush

Ecommerce-specific checks I’d prioritize

A generic SEO score tool will miss some store-specific problems. Check:

1. Indexing problems

In Search Console:

• Are important product pages indexed?
• Are category pages excluded?
• Are filters/search URLs accidentally indexed?
• Are discontinued products handled correctly?

2. Product page SEO

Audit:

• Unique titles and meta descriptions
• Product schema (price, availability, reviews)
• Canonical URLs
• Duplicate manufacturer descriptions
• Image alt text
• Internal links to important products

3. Site architecture

Look for:

• Products buried too many clicks deep
• Categories with no links pointing to them
• Orphan products
• Weak internal linking between related products

4. Speed

Test:

• Homepage
• Top-selling product page
• Main category page
• Mobile performance

Common ecommerce issues:

• Oversized images
• Too many apps/plugins
• Heavy scripts
• Slow third-party tracking

A practical one-day workflow

1. Connect Search Console.
2. Crawl the entire site with Screaming Frog.
3. Export: - 404 errors
4. redirect chains
5. duplicate titles
6. missing meta descriptions
7. canonical issues
8. indexability issues
9. Test 5–10 important URLs in PageSpeed Insights.
10. Validate product schema.
11. Make a spreadsheet: - Issue
12. URL
13. Impact (high/medium/low)
14. Fix
15. Status

For a small store, this stack will usually uncover the majority of high-impact technical SEO problems without paying hundreds per month. SeekLab ContentForce Blog

If you tell me your platform (Shopify, WooCommerce, Magento, custom, etc.) and approximate number of products, I can suggest a more specific audit checklist.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one SEO suite. You can get a very solid audit from mostly free tools.

My $0–$50-ish toolkit

• search.google.com — essential, free

• Check indexing and crawl problems.
• Review sitemap status.
• Find pages Google has excluded or failed to index.
• Look at search queries, clicks and impressions.
• Inspect important product/category URLs individually. Google’s Page Indexing report specifically shows which pages Google can find and index and why others aren't indexed. Google Help Google Help
• ahrefs.com — probably the best free second opinion

• Its Site Audit can crawl 5,000 pages/month per verified project and checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center
• Particularly useful for broken links, redirects, duplicate pages, canonicals, indexability, robots.txt, sitemaps, structured data and internal links. Ahrefs
• You also get some backlink and organic-keyword data for your own verified site.
• screamingfrog.co.uk — free for smaller stores

• The free version crawls up to 500 URLs and checks 300+ SEO issues. Screaming Frog
• Excellent for finding things like 404s, redirect chains, duplicate/missing titles, missing H1s, canonical problems and orphan-ish internal-link patterns.
• If your store is under 500 crawlable URLs, this is particularly valuable.
• pagespeed.web.dev — free

• Test your homepage plus representative product, category/collection and content pages.
• Pay attention to Core Web Vitals rather than obsessing over the overall score.

For an ecommerce store, I'd audit in this order

1. Indexability

• Are important products/categories indexed?
• Are filters, parameters, cart/account/search URLs accidentally indexable?
• Are valuable pages accidentally noindex?
• Does the XML sitemap contain the URLs you actually want indexed?
• Canonicalization

• Check product variants, pagination, faceted navigation and parameter URLs.
• Make sure canonical URLs point to the intended version.
• Crawlability

• 404s and 5xx errors
• Redirect chains/loops
• Broken internal links
• Robots.txt blocking something important
• Excessive URL variations
• Site architecture/internal linking

• Can Google reach every important product?
• Are your best categories/products buried several clicks deep?
• Are discontinued products handled sensibly?
• Duplicate/thin pages

• Product variants
• Manufacturer descriptions copied across products
• Filter combinations
• Empty/near-empty category pages
• On-page technical basics

• Unique title tags
• Meta descriptions
• One sensible H1
• Image alt text where useful
• Correct canonicals
• Indexable product/category copy
• Structured data

• Product
• Offer/price
• Availability
• Review data where legitimately applicable
• Breadcrumbs
• Performance

• Test representative templates on mobile.
• Look for problems affecting LCP, INP and CLS rather than trying to get every Lighthouse number to 100.

If you want to spend a little money

For a one-off audit, I'd actually spend the money on one month of a crawler/SEO platform only if your store is too large or complex for the free tools.

Otherwise, I'd put the budget toward your time implementing fixes, not another subscription.

A particularly good workflow is:

Search Console → Ahrefs Free → Screaming Frog → PageSpeed Insights → manual ecommerce checks

Then put everything into a spreadsheet with:

That gives you something much more useful than a giant automated "SEO score": a prioritized list of fixes.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a specific one-off audit checklist and exact free-tool workflow for your store.

For a one-off technical SEO audit on a tight budget, I’d avoid buying an expensive all-in-one SEO subscription. You can get a very solid audit with mostly free tools.

My recommended $0 stack

• search.google.com — essential

• Check indexing and coverage
• Inspect important product/category URLs
• Look for crawl/indexing problems
• Review Core Web Vitals
• Check sitemap status
• Look at queries/pages already generating impressions
• ahrefs.com — best free crawler

• Its Site Audit can crawl 5,000 pages/month on a verified site and checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center
• Particularly useful for broken links, redirects, duplicate titles/descriptions, canonicals, indexability, robots.txt, sitemaps, structured data and internal linking. Ahrefs
• It also gives you backlink and organic-keyword data for your own verified site.
• screamingfrog.co.uk — second crawler/check

• The free version crawls up to 500 URLs and identifies 300+ SEO issues. Screaming Frog
• Great for getting a spreadsheet-style view of status codes, titles, meta descriptions, H1s, canonicals, redirects, etc.
• If your store has fewer than 500 important URLs, this is especially useful.
• pagespeed.web.dev — performance

• Test representative pages rather than every URL: homepage, category page, product page, cart/checkout if appropriate.
• Pay particular attention to mobile performance and Core Web Vitals.

What I'd actually audit

For an ecommerce site, I'd prioritize things in this order:

1. Indexation

• Are important products/categories indexed?
• Are faceted/filter URLs creating thousands of crawlable variations?
• Are discontinued/out-of-stock pages handled sensibly?
• Is the XML sitemap clean and current?
• Crawlability

• robots.txt
• XML sitemap
• 404s/5xx errors
• redirect chains
• orphan pages
• excessive URL parameters
• Canonicalization & duplicate URLs

• Product variants
• trailing slashes
• HTTP/HTTPS
• www/non-www
• tracking parameters
• category/filter combinations
• On-page technical SEO

• Duplicate/missing title tags
• Meta descriptions
• H1s
• Canonical tags
• Image alt text
• Internal links
• Structured data

• Product schema
• Price/availability
• Review/rating markup where legitimately applicable
• Breadcrumbs
• Check Google's rich-result eligibility rather than assuming schema guarantees rich results.
• Performance

• LCP
• INP
• CLS
• Oversized product images
• Third-party scripts/apps
• JavaScript bloat
• Site architecture

• Can Google reach your important products within a reasonable number of clicks?
• Are category → subcategory → product relationships clear?
• Are your best products receiving internal links?

If you can spend a little

I'd still start with the free stack. For a one-off audit, paying $100–$300+ for a month of a major SEO platform often gives you far more data than you actually need.

If your store is over ~5,000 URLs, however, Ahrefs Free's crawl limit becomes relevant. Ahrefs In that case, a short paid subscription to a crawler/SEO platform can be worthwhile.

My ideal budget setup:

$0: Search Console + Ahrefs Free + Screaming Frog + PageSpeed Insights
$20–50: Add a temporary paid tool only if you need competitor/keyword research
Don't buy: a long-term SEO subscription just for a one-off technical audit.

If you tell me what platform your store uses (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a step-by-step audit checklist using only free tools, including exactly what to look for and what findings are actually worth fixing.

For a one-off technical SEO audit on a tight budget, I wouldn’t buy Semrush or a big all-in-one subscription. You can get a very solid audit for $0, especially if your store is relatively small.

My budget stack

• search.google.com — free, essential

• Check indexing and pages excluded from Google.
• Review sitemap status.
• Look for crawl/indexing errors.
• Check Core Web Vitals and mobile issues.
• Look at which pages actually get impressions/clicks.

This should be your source of truth for Google-specific problems.

• screamingfrog.co.uk — free for up to 500 URLs

• Crawl your store like a search engine.
• Find broken links, redirect chains, missing/duplicate titles and meta descriptions, bad canonicals, heading problems, orphan-ish pages, etc.
• Export the results to Excel/Sheets for your audit.

The free version is capped at 500 URLs per crawl, but that's often enough for a small ecommerce site. Screaming Frog

• ahrefs.com — free if you verify your site

• Run a technical Site Audit.
• Get another perspective on crawlability and on-page issues.
• See backlinks and organic keywords for your own site.

The current free account provides 5,000 crawl credits/month per verified project and checks 170+ technical/on-page issues. Ahrefs Help Center Ahrefs

• pagespeed.web.dev — free

• Test your homepage and several important product/category pages, not just the homepage.
• Pay particular attention to Core Web Vitals: LCP, INP and CLS.
• Look for oversized images, render-blocking resources and excessive JavaScript.

For ecommerce specifically

I'd structure the audit around these areas:

If you have ~$30–50 to spend

I'd actually avoid spending it on an SEO platform for a one-off audit.

Use the free stack above, then spend the money on something that helps you fix the problems—e.g. developer time to resolve indexing, faceted-navigation, speed, or structured-data issues.

If your site is over 500 URLs, I'd lean more heavily on Ahrefs Free because its verified-site crawl allowance is currently 5,000 pages/month. Ahrefs

Best-value setup: Search Console + Screaming Frog + Ahrefs Free + PageSpeed Insights. That's enough to produce a surprisingly professional technical SEO audit without a monthly SEO-tool subscription.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for an all-in-one SEO suite. You can get a very solid audit for $0 using 3–4 tools.

My budget stack

• search.google.com — free

• Check indexing and coverage problems
• Inspect important product/category URLs
• Look for pages excluded from Google
• Review sitemap status
• Check Core Web Vitals and search performance
• This should be your source of truth for what Google actually knows about the store.
• screamingfrog.co.uk — free for up to 500 URLs

• Crawl the site like a search engine
• Find broken links, redirects, missing/duplicate titles and meta descriptions
• Check canonicals, H1s, indexability, response codes, XML sitemaps, etc.
• The free version is capped at 500 URLs, which is plenty for many small ecommerce stores. Screaming Frog
• ahrefs.com — free

• Particularly useful as a second crawler/check against Screaming Frog
• Its free Site Audit currently checks 170+ technical/on-page issues and gives you 5,000 crawl credits per verified project per month. Ahrefs Ahrefs Help Center
• You also get useful backlink and organic-keyword data for your own verified site. Ahrefs Help Center
• pagespeed.web.dev — free

• Test your homepage, several product pages, and category/collection pages.
• Pay particular attention to Core Web Vitals, mobile performance, image weight and JavaScript.

How I'd actually run the audit

Don't just run the tools and dump their reports into a spreadsheet. For ecommerce, I'd prioritize issues in this order:

1. Indexability

• Are valuable product/category pages indexable?
• Are important pages accidentally noindex?
• Are canonical tags correct?
• Is Google discovering the right URLs?
• Crawl waste / ecommerce URL problems

• Faceted navigation
• Filter/sort parameters
• Duplicate product URLs
• Pagination
• Internal search pages
• Tracking parameters
• 4xx/5xx errors and redirects

• Broken internal links
• Redirect chains
• Products that were removed but still have valuable backlinks/traffic
• Incorrect redirects
• Sitemap + robots.txt

• XML sitemap contains canonical, indexable URLs
• No important pages are blocked accidentally
• Sitemap isn't stuffed with junk/redirected URLs
• Duplicate and thin pages

• Duplicate product/category pages
• Manufacturer descriptions reused across products
• Variants creating unnecessary URLs
• Empty/near-empty categories
• Internal linking

• Can Google reach every important product?
• Are your important categories well linked?
• Are there orphaned products?
• Performance

• Mobile Core Web Vitals
• Oversized product images
• Excessive third-party scripts/apps
• Slow templates
• Structured data

• Product schema
• Breadcrumb schema
• Organization/sitewide schema where appropriate
• Check for errors and, importantly, whether the markup matches what's actually visible on the page.

One important ecommerce tip

Don't obsess over the number of warnings an SEO crawler gives you.

A store with 200 minor warnings but correctly indexable product/category pages can be in much better shape than one with a "95/100 SEO score" where half its valuable products are canonicalized incorrectly or excluded from indexing.

If your store is under 500 URLs, my preferred $0 workflow would be:

Search Console → Screaming Frog → PageSpeed Insights → Ahrefs Free → manual review of your 10–20 most important pages.

You don't need Semrush, a paid Ahrefs subscription, or an expensive agency crawler for a one-off audit. Ahrefs Screaming Frog

If you tell me whether you're on Shopify, WooCommerce, BigCommerce, or something else, I can also give you a one-off audit checklist specifically for that platform, including exactly what to check and what to ignore.

For a one-off technical SEO audit on a tight budget, I wouldn't buy a big all-in-one SEO subscription. You can get a very solid audit for $0–$30 using a small stack.

My recommended stack

• search.google.com — free, essential

• Indexing problems
• Pages Google has/hasn't indexed
• Sitemap status
• Search queries and pages
• Core Web Vitals
• Manual actions/security issues
• This should be your source of truth for what Google actually sees.
• screamingfrog.co.uk — free for up to 500 URLs

• Crawl your store like a search-engine bot.
• Find broken links, redirect chains, bad/missing title tags and meta descriptions, canonical problems, duplicate URLs, robots directives, etc.
• The free version handles 500 URLs per crawl. Screaming Frog Screaming Frog
• For a small ecommerce site, this may be enough by itself.
• ahrefs.com — free

• Particularly useful as a second crawler/check against Screaming Frog.
• For verified sites, Ahrefs currently provides 5,000 crawl credits/month and checks 170+ technical/on-page issues. Ahrefs Ahrefs Help Center
• Also gives you backlink and organic-keyword information, which is useful for putting the technical issues in context.
• pagespeed.web.dev — free

• Check your homepage plus a representative product page, category/collection page, and perhaps cart/other important template.
• Pay particular attention to Core Web Vitals, rather than obsessing over the overall Lighthouse score.
• search.google.com — free

• Important for ecommerce because you want to verify product structured data, breadcrumbs, organization data, etc.

If you only have a few hours

I'd do the audit in this order:

1. Search Console: indexing, sitemap, Core Web Vitals and major search-performance anomalies.
2. Screaming Frog: crawl the entire store and export errors/warnings.
3. Ahrefs Free: run a second crawl and inspect backlinks/organic pages.
4. PageSpeed Insights: test representative templates, not every URL.
5. Rich Results Test: validate a handful of important product pages.
6. Manually inspect: robots.txt, XML sitemap, canonicals, faceted/filter URLs, pagination, redirects, and internal linking.

What I'd not spend money on

For a one-off audit, I'd skip expensive subscriptions to Semrush/Ahrefs/etc. unless you specifically need competitor research, extensive keyword research, or a very large crawl.

If your store is under ~500 crawlable URLs, $0 is genuinely sufficient for a surprisingly comprehensive technical audit. If it's larger, I'd still start with the free tools before paying for anything.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a step-by-step $0 audit checklist specifically for that platform.

For a one-off technical SEO audit on a tight budget, I’d avoid expensive all-in-one SEO suites and build a small toolkit. For a small ecommerce store, a good audit can be done for $0–$50 total. SeekLab ContentForce AI

My recommended low-budget stack

SeekLab AlphansoLabs |## How I’d spend 2–4 hours auditing an ecommerce store

1. Start with Google Search Console (30 minutes)

Check:

• Pages not indexed
• “Crawled — currently not indexed”
• Duplicate/canonical issues
• Sitemap status
• Mobile usability
• Core Web Vitals
• Pages losing clicks/impressions

This tells you what Google is actually seeing, rather than just what a crawler thinks is wrong. AlphansoLabs |

2. Crawl the store with Screaming Frog (60–90 minutes)

Run a crawl and export:

• 404 pages
• 301 redirect chains
• Missing title tags
• Duplicate title tags
• Duplicate meta descriptions
• Missing H1s
• Canonical tag problems
• Pages blocked by robots.txt
• Orphan product/category pages (if you can compare against your sitemap)

For ecommerce, pay special attention to:

• Product pages accidentally set to noindex
• Category pages too deep in the site structure
• Duplicate product URLs from filters/variants
• Thin category pages

The free version is usually enough for smaller stores. Rankture AlphansoLabs |

3. Check speed on important templates (30 minutes)

Don’t test only your homepage. Test:

• Homepage
• Top-selling product page
• Main category page
• Collection/filter page
• Checkout entry page

Look for:

• Oversized images
• Slow third-party scripts
• Large JavaScript bundles
• Layout shifts

SeekLab### 4. Validate ecommerce schema (15 minutes)

Check that products have:

• Product name
• Price
• Availability
• Reviews (if applicable)
• SKU/brand where relevant

Bad schema won’t necessarily tank rankings, but missing valid product markup can reduce rich result opportunities.

Optional: spend a little money

If you can spend $20–50 for one month, I’d consider:

• semrush.com trial/month — useful for competitor gaps and automated issue reports
• sitebulb.com trial — excellent visual audit reports
• ahrefs.com trial/month — stronger backlink and competitor analysis

I would not pay for a full year of an SEO suite just for a one-time audit.

A practical “cheap but effective” audit bundle

If it were my small ecommerce store, I’d use:

1. Google Search Console — free
2. Screaming Frog — free
3. PageSpeed Insights — free
4. Ahrefs Webmaster Tools — free
5. A spreadsheet to prioritize fixes

Then rank issues by impact:

Fix first

• Pages blocked from indexing
• Broken important URLs
• Wrong canonicals
• Missing product schema
• Slow product pages

Fix later

• Minor title length issues
• Small metadata inconsistencies
• Low-priority warnings

If you tell me your ecommerce platform (Shopify, WooCommerce, Magento, custom, etc.) and approximate number of products/pages, I can suggest a more specific audit checklist.

For a one-off technical SEO audit on a small ecommerce store, I would avoid expensive all-in-one SEO suites (Semrush, Ahrefs, etc.) unless you also need ongoing keyword tracking or competitor research. A lean stack can get you most of the useful findings for free or under ~$50. Semrush Ighenatt

My recommended budget stack

1. Google Search Console — free (must-have)

Use it for:

• Indexing problems
• Pages excluded from Google
• Manual actions/security issues
• Search performance by page/query
• Core Web Vitals issues

This is the closest thing to “what Google actually sees.” It is not a full crawler, but it should be your starting point. AlphansoLabs |

2. Screaming Frog SEO Spider — free tier or one month paid

Best tool for the actual technical crawl.

Use it to find:

• Broken links (404s)
• Redirect chains
• Duplicate titles/meta descriptions
• Missing canonicals
• Noindex mistakes
• Thin/duplicate product pages
• Sitemap inconsistencies
• Internal linking issues

The free version crawls up to 500 URLs, which is often enough for a small store. Semrush Zapier

If your store has thousands of products, paying for a single month or annual license may be worthwhile. ZProStudio

3. Google PageSpeed Insights + Lighthouse — free

For ecommerce, speed matters.

Check:

• Mobile performance
• Largest Contentful Paint (LCP)
• Cumulative Layout Shift (CLS)
• JavaScript/CSS bloat
• Image optimization opportunities

4. Rich Results Test — free

Useful for ecommerce schema checks:

• Product markup
• Reviews
• Price/availability
• Breadcrumbs

5. Your ecommerce platform tools

Depending on your store:

• Shopify: check theme code, apps, canonical tags, redirects, sitemap behavior
• WooCommerce: check plugins, generated pages, duplicate archives, schema conflicts
• BigCommerce/Magento: pay extra attention to faceted navigation and crawl traps

Optional cheap add-ons

Sitebulb (short-term subscription)

Good if you want a prettier, easier-to-understand audit report. It is especially useful if you are not comfortable interpreting raw crawl exports. Tajo

SE Ranking / Semrush trial

Useful if you want:

• Keyword ranking snapshot
• Competitor comparison
• Backlink overview

But for a technical-only one-off audit, they are usually overkill. Semrush

A practical $0 audit workflow

1. Run Google Search Console checks:

• Pages indexed?
• Important products missing?
• Coverage errors?
• Core Web Vitals problems?
• Crawl the site with Screaming Frog:

• Export all errors/warnings
• Check: - 4xx/5xx pages
• redirects
• canonicals
• duplicate metadata
• orphan pages
• Test your top pages:

• Homepage
• Category pages
• Best-selling products
• Checkout/product templates
• Check:

• XML sitemap matches indexable URLs
• Robots.txt is not blocking important sections
• Product schema is valid
• Mobile speed is acceptable

If I were spending money once

I’d spend it on:

• $0: Google Search Console + Screaming Frog free + PageSpeed Insights
• ~$50–100: hire someone experienced to interpret the findings rather than buying a bigger tool

The common mistake with SEO audits is ending up with a 200-page report full of warnings but no prioritized fixes. For a small ecommerce store, a short list of the top 5–10 issues affecting crawling, indexing, speed, and product visibility is usually more valuable.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for Ahrefs/Semrush unless you specifically need their backlink/keyword databases. You can get a surprisingly good ecommerce audit for $0 with a small toolkit.

My $0 toolkit

1. search.google.com — essential

• Indexing problems and excluded URLs
• Sitemap status
• Search performance
• Core Web Vitals
• Mobile issues
• URL Inspection for important product/category pages
• Robots.txt and crawl information

Google specifically provides indexing, URL Inspection, Core Web Vitals, sitemap, robots.txt and crawl reports in Search Console. Google Help Google Google Help

2. screamingfrog.co.uk — your main crawler

This would be my #1 tool for the actual audit. The free version crawls up to 500 URLs, which is often enough for a small store. It can uncover broken links, redirects, missing/duplicate titles and descriptions, canonicals, robots directives, duplicate pages, status codes and more. Screaming Frog Screaming Frog

3. pagespeed.web.dev — performance

Test representative pages rather than every URL:

• Homepage
• Main category/collection
• Product page
• Cart
• Maybe a content/blog page

Pay particular attention to mobile Core Web Vitals, rather than obsessing over the overall Lighthouse score.

4. Your browser + Google search — surprisingly useful

Manually inspect:

• site:yourdomain.com
• site:yourdomain.com/products/...
• Important category/product pages
• Canonical tags
• Robots meta tags
• Structured data
• Internal links
• Breadcrumbs

What I'd actually audit

For an ecommerce store, I'd prioritize things in this order:

One ecommerce-specific warning

Don't blindly "fix" every URL Screaming Frog flags.

Ecommerce sites naturally generate things like:

/products/shirt?color=blue&size=large

/collections/shirts?sort=price

Some of those URLs should be crawlable/indexable, while others should not. The right answer depends on whether they represent useful search landing pages. URL proliferation and faceted navigation are often more important than a pile of minor metadata warnings.

If your store has >500 URLs

You can still do the audit without buying Screaming Frog immediately. Crawl your most important sections separately, or export your sitemap and prioritize:

• All category/collection URLs
• Top-selling products
• Products receiving organic traffic
• Important landing pages
• Recently added products
• URLs with backlinks

If the site is substantially larger, then I'd consider paying for one month/year of a crawler only if it saves you significant manual work. For a genuinely small store, the free 500-URL crawl is usually enough. Screaming Frog

The budget setup I'd use

$0:

• Google Search Console
• Screaming Frog Free
• PageSpeed Insights
• Google Sheets/Excel
• Browser DevTools

Optional paid spend: only add a paid crawler or SEO suite if the site is too large for the free crawl or you need backlink/keyword research.

If you tell me what ecommerce platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a lean audit workflow specifically for that platform, including exactly what to check and what to ignore.

Some of those URLs should be crawlable/indexable, while others should not. The right answer depends on whether they represent useful search landing pages. URL proliferation and faceted navigation are often more important than a pile of minor metadata warnings.

If your store has >500 URLs

You can still do the audit without buying Screaming Frog immediately. Crawl your most important sections separately, or export your sitemap and prioritize:

• All category/collection URLs
• Top-selling products
• Products receiving organic traffic
• Important landing pages
• Recently added products
• URLs with backlinks

If the site is substantially larger, then I'd consider paying for one month/year of a crawler only if it saves you significant manual work. For a genuinely small store, the free 500-URL crawl is usually enough.

The budget setup I'd use

For a one-off technical SEO audit on a small ecommerce store, I would avoid expensive all-in-one SEO suites. A lean stack of free or low-cost tools will uncover most issues that matter. Ighenatt

Recommended budget stack

1. Google Search Console — free (must-have)

Use it for:

• Indexing problems
• Pages excluded from Google
• Sitemap issues
• Search queries and CTR opportunities
• Core Web Vitals data
• Manual actions/security issues

This is the only tool that shows how Google is actually seeing your store. SeekLab

2. Screaming Frog SEO Spider — free for small stores

Best technical crawler for a one-time audit.

Use it to find:

• Broken links (404s)
• Redirect chains
• Missing/duplicate title tags
• Missing meta descriptions
• Duplicate pages
• Canonical problems
• Noindex mistakes
• Thin internal linking

The free version crawls up to 500 URLs, which is often enough for smaller ecommerce catalogs. AuditZap

3. Google PageSpeed Insights — free

Run it on:

• Homepage
• Top category pages
• Best-selling product pages
• Checkout/cart pages if accessible

Look for:

• Slow images
• Large JavaScript bundles
• Poor mobile performance
• Core Web Vitals problems (especially LCP, INP, CLS)

It is especially useful because ecommerce stores often lose speed from apps, tracking scripts, and oversized images. AuditZap

4. Ahrefs Webmaster Tools — free (optional)

Good for:

• Backlink health
• Broken backlinks
• Organic keyword visibility
• Some site health checks

Worth adding if your store has been around for a while. SeekLab

5. Google Rich Results Test — free

Check:

• Product schema
• Review schema
• Price/availability markup
• Breadcrumb schema

Important for ecommerce because structured data can influence how your products appear in search.

If you can spend a little money ($50–150 one time)

I would spend it on better crawling/reporting, not a monthly SEO subscription.

Good options:

• A one-month subscription to a crawler/audit platform if you want automated reports
• A paid Screaming Frog license only if your store has more than ~500 URLs or you need advanced crawling
• Hiring an SEO freelancer for a few hours to interpret findings (often more valuable than buying software)

Paid suites like Semrush or Ahrefs are generally better for ongoing SEO work rather than a single audit. Ighenatt

My suggested one-off workflow

1. Connect Google Search Console.
2. Crawl the entire site with Screaming Frog.
3. Export: - 4xx errors
4. redirect issues
5. duplicate titles/descriptions
6. canonical issues
7. indexability problems
8. Test your money pages in PageSpeed Insights.
9. Check product schema.
10. Prioritize fixes by impact: - Pages not indexed
11. Checkout/product page speed
12. Duplicate product/category URLs
13. Broken internal links
14. Missing structured data
15. Metadata cleanup

For most small ecommerce stores, this will uncover the majority of technical SEO problems without paying for a large SEO platform. Ighenatt

If you tell me your ecommerce platform (Shopify, WooCommerce, Magento, custom, etc.) and approximate number of products, I can suggest a more specific audit setup.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for an all-in-one SEO suite. You can get a surprisingly good audit for $0 with this stack:

My recommended $0 stack

• search.google.com — Your first stop. Check indexing, sitemap status, crawl/indexing problems, Core Web Vitals, manual actions, and which pages/queries Google actually sees. Google
• ahrefs.com — Excellent second crawler. For a verified site, its Site Audit checks 170+ technical/on-page issues and provides up to 5,000 crawl credits/month. Ahrefs Ahrefs
• screamingfrog.co.uk — Particularly useful for ecommerce because you can inspect URLs, status codes, canonicals, titles, meta descriptions, headings, redirects, internal links, etc. The free version handles 500 URLs per crawl. Screaming Frog
• pagespeed.web.dev — Use it on your homepage plus a representative product, category/collection, and content page. Focus on real performance/Core Web Vitals rather than obsessing over the overall score.

What I'd actually audit

For an ecommerce store, prioritize these rather than trying to fix 100 minor warnings:

1. Indexation

• Are important product/category pages indexed?
• Are filters, parameters, internal search pages and duplicate URLs accidentally getting indexed?
• Is robots.txt blocking anything important?
• Is the XML sitemap clean and submitted?
• Canonicalization & duplicates

• Product variants
• Tracking parameters
• Filter/sort URLs
• Duplicate category/product paths
• HTTP/HTTPS and www/non-www versions
• Crawlability

• 404s and 5xx errors
• Redirect chains
• Broken internal links
• Orphaned products/categories
• Excessive crawlable URLs
• On-page basics

• Duplicate/missing title tags
• Duplicate/missing meta descriptions
• Missing or duplicated H1s
• Thin product/category pages
• Product pages with little unique content
• Performance

• Core Web Vitals
• Oversized product images
• JavaScript bloat
• Slow templates/apps
• Mobile performance
• Structured data

• Product
• Offer/price
• Availability
• Review/rating markup
• Breadcrumbs

The best workflow

Search Console → Screaming Frog → Ahrefs → PageSpeed

Don't blindly fix every warning from the crawlers. Make a spreadsheet with:

Then fix the high-impact/low-effort problems first.

One paid tool I'd consider: if your store is over 500 URLs and you want a single comprehensive crawl, Ahrefs Free gives verified sites 5,000 crawl credits, so you may not need to pay at all. Ahrefs Help Center If you need competitor research/rank tracking beyond the audit, that's when I'd consider paying for a month of an SEO suite and canceling afterward.

If you tell me what ecommerce platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a platform-specific audit workflow using mostly free tools.

For a one-off technical SEO audit on a small ecommerce store, I would avoid paying for a full SEO suite unless you already know you’ll use it monthly. A good audit can be done with a mostly free stack. seeklab.io

My recommended tight-budget stack

seeklab.io

If I only had 2–3 hours, I’d do this

1. Google Search Console
   • Check:
     • Pages not indexed
     • “Crawled — currently not indexed”
     • Sitemap status
     • Manual actions/security issues
     • Core Web Vitals

2. Screaming Frog crawl

Export:

• 404 pages
• 301/302 redirects
• redirect chains
• duplicate titles/meta descriptions
• missing H1s
• canonical tags
• pages blocked by robots/noindex
• orphan-looking pages (compare against sitemap)

3. Test key ecommerce pages in PageSpeed Insights

Don’t just test the homepage:

• homepage
• top-selling product page
• category/collection page
• checkout/cart if accessible

4. Check ecommerce-specific SEO items
   • Product pages have unique titles/descriptions
   • Product schema is valid
   • Canonicals point correctly
   • Faceted navigation/filter URLs aren’t creating thousands of indexable pages
   • Out-of-stock products are handled intentionally
   • Internal links flow from categories → products

Optional paid spend (only if you want a nicer report)

For a one-month audit, consider:

• Semrush trial — easier dashboards and competitive comparisons
• Ahrefs trial/subscription — stronger backlink and competitor research

I would not start with these unless you need competitor data. For a small store, the free stack above usually finds the highest-impact technical problems. clickraven.com

If you tell me your ecommerce platform (Shopify, WooCommerce, Magento, custom, etc.) and approximate number of products/pages, I can narrow the audit workflow and the exact checks to run.

For a one-off technical SEO audit on a small ecommerce store, I’d avoid expensive all-in-one SEO suites. You can get a solid audit for $0–$100 with a small toolkit. The key is combining tools, because no single free tool catches everything. SeekLab AlphansoLabs |

Recommended budget stack

1. Google Search Console — free (must-have)

Use it for:

• Indexing problems
• Pages excluded from Google
• Search queries and impressions
• Core Web Vitals
• Manual actions/security issues
• Sitemap status

This is the first place I’d look because it shows Google’s actual view of your site. AlphansoLabs |

2. Screaming Frog SEO Spider — free tier

Best technical crawler for a small store.

Use it to find:

• Broken links (404s)
• Redirect chains
• Missing/duplicate title tags
• Missing meta descriptions
• Duplicate pages
• Canonical tag issues
• Noindex mistakes
• Thin internal linking

The free version crawls up to 500 URLs, which is usually enough for small ecommerce sites. Rankture Lunchbox Hands

3. Google PageSpeed Insights — free

Run it on:

• Homepage
• Top category pages
• Best-selling product pages
• Checkout/cart pages if accessible

Focus on:

• LCP (loading speed)
• INP (interaction speed)
• CLS (layout shifts)
• Image optimization
• JavaScript issues

Don’t chase a perfect score; fix issues that affect real shoppers. AuditZap

4. Ahrefs Webmaster Tools — free (optional)

Useful if you want:

• Backlink overview
• Site health checks
• Some keyword visibility data

Good addition if competitors outrank you and you want clues why. SeekLab

5. Schema validation tools — free

For ecommerce, check:

• Product schema
• Review schema
• Price/availability markup
• Breadcrumb schema

Rich results errors can hurt your ability to get enhanced search listings. VisRank

If you can spend ~$100 once

I’d spend it on one month of a paid crawler/audit tool, run the audit, export everything, then cancel.

Good candidates:

• Semrush trial/monthly plan — useful for a broad SEO overview
• Ahrefs paid access — stronger for backlinks/content analysis
• Sitebulb — excellent audit visualizations and prioritization

For a purely technical ecommerce audit, a paid crawler is often more useful than a keyword tool. CrawlBudget

My suggested one-day audit workflow

1. Google Search Console

• Export indexing issues
• Check Core Web Vitals
• Look for pages with high impressions but low clicks
• Screaming Frog crawl

• Crawl the whole site
• Export: - 4xx errors
• 5xx errors
• Redirects
• Duplicate titles
• Duplicate descriptions
• Canonical issues
• Orphan pages (if connected to GSC)
• Speed checks

• Test 5–10 important URLs in PageSpeed Insights
• Manual ecommerce checks

• Are product pages indexable?
• Are discontinued products handled correctly?
• Are filters creating thousands of indexable URLs?
• Are category pages stronger than individual product pages?
• Is internal linking helping your best products?

Biggest ecommerce-specific SEO issues I’d look for

• Duplicate product descriptions from suppliers
• Faceted navigation creating crawl traps
• Product pages with no internal links
• Out-of-stock pages handled poorly
• Missing product structured data
• Slow images
• Thin category pages
• Canonical tags pointing to the wrong URLs
• Pagination/indexation problems

A realistic budget setup:

$0: Search Console + Screaming Frog free + PageSpeed Insights
$50–100: Add one paid crawler for a month and export reports
$300+: Usually unnecessary unless you have thousands of SKUs

For a small store, the free stack plus a careful prioritization pass will usually uncover the highest-impact technical issues.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for an all-in-one platform. You can get most of what you need with a small free stack.

My recommended $0 stack

• search.google.com — your highest-priority tool. Check indexing, crawl issues, sitemap status, Core Web Vitals, search performance, and URL Inspection. Google also provides robots.txt and crawl-stat information here. Google Google Support
• screamingfrog.co.uk — use this as the main crawler. The free version handles up to 500 URLs per crawl and catches broken links, redirects, duplicate/missing metadata, canonicals, robots directives, hreflang, etc. Screaming Frog
• Google PageSpeed Insights — check representative product, category, homepage, and content pages for Core Web Vitals and performance issues.
• Google's Rich Results testing tools — validate product/schema markup rather than assuming your ecommerce platform has implemented it correctly.
• Google Analytics 4, if already installed — useful for finding important landing pages and spotting pages where organic traffic/conversions are unexpectedly weak.

For ecommerce, I'd audit these first

Don't spend equal time on every SEO warning. I'd prioritize:

1. Indexation

• Are product/category pages actually indexed?
• Are filters, internal search, parameters and duplicate URLs creating index bloat?
• Is the XML sitemap clean and complete?
• Are important pages accidentally noindexed?
• Crawlability

• Broken links and 4xx/5xx pages
• Redirect chains
• Robots.txt problems
• Canonical conflicts
• Orphaned products/categories
• Duplicate/near-duplicate pages

• Product variants
• Faceted navigation
• Pagination
• Sort/filter URLs
• Duplicate category paths
• Internal linking

• Can Google reach every important product?
• Are high-value categories getting enough internal links?
• Are discontinued products handled sensibly?
• Product structured data

• Product
• Offer/price
• Availability
• Reviews, where legitimately applicable
• Performance/mobile

• Especially category and product templates, since fixing a template can improve hundreds of pages at once.
• Titles/H1s/meta descriptions

• Look for template-level problems rather than manually optimizing 500 individual products.

A very cheap audit workflow

I'd do it in this order:

Search Console → Screaming Frog → PageSpeed → structured data → manual review.

Export Screaming Frog's findings into a spreadsheet and create four columns:

That turns a pile of SEO warnings into something you can actually act on.

What I wouldn't pay for

For a one-off audit, I'd skip Ahrefs/SEMrush-style subscriptions unless you specifically need backlink/competitor research. Their recurring cost isn't necessary for the technical portion of a small-store audit.

If your store has fewer than ~500 crawlable URLs, Screaming Frog's free tier is particularly useful because you can do the whole crawl without paying. Screaming Frog

If you tell me whether you're on Shopify, WooCommerce, BigCommerce, or something else, I can give you a step-by-step $0 audit checklist specifically for that platform.

For a one-off technical SEO audit on a tight budget, I’d avoid buying an expensive all-in-one SEO suite. You can get a very solid audit with mostly free tools.

My low-cost stack

Ahrefs' current free plan is particularly useful for a one-off audit: verified sites get 5,000 crawl credits/month and access to 170+ technical/on-page checks. ahrefs.com

Screaming Frog is worth running alongside it because its free version crawls up to 500 URLs per crawl and lets you inspect/export things like titles, meta descriptions, headings, canonicals, status codes and internal links. www.screamingfrog.co.uk

What I'd actually audit

For an ecommerce store, I'd prioritize these rather than obsessing over every warning:

1. Indexation

• Are important product/category pages indexed?
• Are faceted/filter URLs creating thousands of crawlable pages?
• Are noindex, canonical and robots.txt directives behaving correctly?
• Is the XML sitemap clean and actually submitted?
• Are discontinued products handled sensibly?

2. Crawlability & internal linking

• 404s and 5xx errors
• Redirect chains
• Orphan pages
• Important products buried several clicks deep
• Internal links pointing to redirected/non-canonical URLs

3. Ecommerce-specific duplication

• Product variants
• URL parameters
• Sort/filter URLs
• Duplicate category pages
• Products appearing in multiple category paths
• Manufacturer/product descriptions duplicated across the site

4. On-page technical SEO

• Missing/duplicate title tags
• Missing/duplicate meta descriptions
• Multiple or missing H1s
• Canonical problems
• Image alt attributes
• Thin/empty product pages

5. Structured data
Check that Product, Offer, Review/AggregateRating and Breadcrumb markup is valid where appropriate. Don't blindly add schema just because a tool reports that it's possible.

6. Performance
Use PageSpeed Insights on representative templates rather than every URL: homepage, category page, product page and perhaps cart/search. Pay particular attention to LCP, INP and CLS, plus oversized product images and JavaScript.

If you have $0

I'd do it in this order:

Search Console → Ahrefs Free → Screaming Frog → PageSpeed Insights → Rich Results Test

That gives you substantially more coverage than relying on one "SEO score" tool.

One important tip

Don't treat the output as a giant list of 200 things to fix. For a small store, turn the audit into a prioritized list of maybe 10–20 fixes, ranked roughly:

Critical indexing/crawl problems → revenue-generating category/product issues → sitewide technical problems → performance → minor metadata cleanup.

That makes the audit much more actionable and prevents spending hours fixing low-impact warnings while an important product category is accidentally noindex.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a lean audit workflow tailored to it.

For a one-off technical SEO audit on a small ecommerce store, I would avoid paying for a full SEO suite unless you plan to keep using it. A good budget stack is mostly free, with maybe one short-term paid tool if your store is complex. No single tool catches everything, so combine a crawler, Google data, and performance checks. seeklab.io

My recommended low-budget stack

seeklab.io

If you spend a little money, spend it here

For a single serious audit, I would consider paying for one month of one of these:

• Semrush — easier reporting and lots of automated checks. www.semrush.com
• Ahrefs — stronger for backlinks and competitive research. clickraven.com
• Sitebulb — excellent for visualizing site architecture and crawl issues. seeklab.ioighenatt.es

For a small store, I would usually pick Screaming Frog + Search Console + PageSpeed before paying for anything.

Ecommerce-specific things I would audit

A normal SEO audit misses some store-specific problems. Pay extra attention to:

Indexing

• Are product pages indexed?
• Are category/filter URLs accidentally indexed?
• Are discontinued products handled correctly?
• Is the XML sitemap clean?

Product pages

• Unique title tags and meta descriptions
• Product schema validity
• Reviews markup
• Thin product descriptions
• Duplicate variants

Site architecture

• Important products reachable within a few clicks
• Category pages have internal links
• No dead-end pages
• No redirect chains

Performance

• Oversized product images
• Slow theme scripts
• App/plugin bloat (especially Shopify stores)
• Mobile Core Web Vitals

A simple audit workflow

1. Verify the store in Google Search Console.
2. Crawl the whole site with Screaming Frog.
3. Export:
   • 404 pages
   • 3xx redirects
   • duplicate titles/descriptions
   • missing canonicals
   • indexability issues
4. Check your top money pages in PageSpeed Insights.
5. Validate product schema.
6. Create a fix list ranked by:
   • revenue impact
   • SEO impact
   • difficulty

If your store is Shopify, WooCommerce, or another platform, the best tool choice changes slightly because the common technical problems differ.

For a one-off technical SEO audit on a tight budget, I wouldn’t buy an expensive all-in-one SEO platform. You can get most of what you need with a small free stack.

My recommended stack

Screaming Frog is particularly good value: the free version crawls up to 500 URLs and checks a large range of technical issues. www.screamingfrog.co.uk

For an ecommerce store, I'd audit in this order

1. Google Search Console first

Look at:

• Pages indexed vs. excluded
• Crawled/discovered but not indexed URLs
• 404s and other crawl errors
• Sitemap status
• Canonicalization
• Search queries/pages losing clicks
• Core Web Vitals
• Manual actions/security issues

Search Console is especially valuable because it tells you what Google actually knows about and does with your URLs, rather than merely what a crawler thinks might be wrong. support.google.com

2. Crawl the site with Screaming Frog

Pay particular attention to ecommerce-specific problems:

• Product pages returning 200 vs. 404/soft-404
• Duplicate product URLs
• Filter/faceted-navigation URLs creating crawl bloat
• Pagination
• Canonical tags
• noindex directives
• Redirect chains
• Orphan products
• Internal linking to important products/categories
• Duplicate/missing title tags and H1s
• Thin category pages
• XML sitemap URLs that aren't indexable

Don't obsess over every warning Screaming Frog produces. Prioritize things that affect crawlability, indexation, canonicalization and important commercial pages.

3. Test your important templates with PageSpeed Insights

You don't need to test every product page. Test representative:

• Homepage
• Main category page
• Subcategory
• Product page
• Cart/other important template if relevant

Look at mobile Core Web Vitals and the actual causes of poor performance, rather than chasing a perfect Lighthouse score.

4. Check structured data

For ecommerce, I'd specifically inspect:

• Product
• Offer
• AggregateRating/reviews, if legitimately applicable
• Breadcrumb
• Organization

Use Google's Rich Results Test for representative product pages.

5. Run Bing's Site Scan as a sanity check

It's free and provides another crawler's perspective on common technical problems. www.bing.com

What I would not pay for

For a single small-site audit, I'd skip buying Semrush/Ahrefs/SE Ranking/etc. unless you specifically need their backlink or competitive keyword databases.

If you need backlink information, you can use the free data available in Search Console first. support.google.com

If your site is >500 URLs

You can still use the free Screaming Frog strategically—crawl the most important sections/templates and supplement it with Search Console and Bing. I wouldn't automatically spend ~$200–300 on a one-off audit just because the store has more than 500 URLs.

Bottom line: for $0, I'd use Search Console + Screaming Frog + PageSpeed Insights + Rich Results Test + Bing Webmaster Tools. That's enough to produce a genuinely useful technical audit for most small ecommerce stores.

If you tell me what platform you're on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a prioritized audit workflow tailored to it.

For a one-off ecommerce technical SEO audit on a tight budget, I would not buy a $100+/month SEO suite. You can get a very solid audit from a mostly-free stack.

My recommended stack

1. Start with Google Search Console.
This is the most important source because it shows what Google itself knows about your site—indexing problems, search queries, clicks/impressions, sitemap status, and Core Web Vitals. search.google.com

Pay particular attention to:

• Pages marked Crawled – currently not indexed
• Pages marked Discovered – currently not indexed
• Unexpected noindex
• Canonical conflicts
• Sitemap errors
• Core Web Vitals
• Product/rich-result issues

Google Search Console

2. Crawl the store with Screaming Frog.
For a small store, the free version is often enough—it can crawl up to 500 URLs. ighenatt.es

Export the crawl and check:

• 404s and other 4xx/5xx pages
• Redirect chains
• 301/302 redirects
• Duplicate title tags
• Missing/duplicate H1s
• Missing meta descriptions
• Canonical URLs
• Orphan pages
• Internal-link depth
• Pagination
• Images with huge file sizes
• Robots directives
• XML sitemap URLs

For ecommerce, I'd pay particular attention to faceted navigation/filter URLs. They can create thousands of near-duplicate URLs and crawl-budget problems.

Screaming Frog SEO Spider

3. Add Ahrefs Free.
If you verify ownership, Ahrefs currently provides a free Site Audit with 5,000 crawl credits/month, plus visibility into backlinks and organic keywords. Its audit covers 170+ technical/on-page issues. ahrefs.com

Ahrefs Free

This is particularly useful for answering questions Screaming Frog can't answer well, such as:

"Are there important product/category pages that have no backlinks or virtually no organic visibility?"

4. Run PageSpeed Insights on your money-making templates.

Don't just test the homepage. Test at least:

• Homepage
• Category/collection page
• Product page
• Cart
• One content/blog page, if applicable

Look at mobile performance especially. For ecommerce, don't blindly chase a 100/100 score—the goal is to identify problems that actually affect UX and Core Web Vitals.

PageSpeed Insights

If I had only 3 hours

I'd spend it roughly like this:

45 min — Search Console
→ indexing + sitemap + CWV + search performance

60 min — Screaming Frog
→ crawl + exports + identify duplicate/blocked/broken URLs

30 min — Ahrefs
→ backlinks + organic pages/keywords + second-opinion technical issues

30 min — manual ecommerce review
→ category → product architecture, filters, canonicals, internal links, structured data, mobile UX

15 min — prioritize

Put every finding into three buckets:

🔴 Fix now: indexation problems, broken important URLs, bad canonicals, accidental noindex, serious CWV problems

🟠 Fix next: duplicate metadata, redirect chains, orphan pages, weak internal linking, bloated filter URLs

🟢 Nice to have: minor metadata improvements, low-impact warnings, cosmetic issues

One important money-saving tip

For a one-off audit, don't subscribe to Semrush/Ahrefs/Sitebulb for months just because their dashboards look impressive. A combination of Search Console + Screaming Frog + Ahrefs Free + PageSpeed Insights gives a small ecommerce site a surprisingly comprehensive audit without a recurring bill. Sitebulb is worth considering if you want a more visual, polished audit; it currently offers a free trial and much deeper visualization/reporting. sitebulb.com

If you tell me what platform your store runs on (Shopify, WooCommerce, Magento, etc.) and roughly how many products/URLs it has, I can give you a specific $0–$50 audit workflow and exactly what to check in each tool.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one SEO suite. You can get a surprisingly thorough audit with $0–$30.

My recommended stack

Screaming Frog is particularly good for a small ecommerce site: its free version crawls up to 500 URLs and exposes issues such as missing/duplicate titles, meta descriptions, headings, canonicals, redirects and broken URLs. www.screamingfrog.co.uk

Ahrefs Free is a nice complement rather than a replacement. For a verified site, its Site Audit currently checks 170+ technical/on-page issues and provides 5,000 crawl credits per project per month. It also gives you backlink and organic-keyword data. ahrefs.comhelp.ahrefs.com

What I'd actually do

1. Google Search Console
   • Check indexing/page indexing.
   • Look for excluded or unexpectedly non-indexed product/category pages.
   • Verify your XML sitemap.
   • Check Core Web Vitals.
   • Look at queries/pages losing clicks or impressions.

2. Screaming Frog
   • Crawl the whole site.
   • Export URLs with:
     • 4xx/5xx errors
     • redirect chains
     • missing/duplicate titles
     • missing/duplicate meta descriptions
     • missing H1s
     • canonical problems
     • orphan-like pages/internal-link issues
   • Pay special attention to product, category and faceted-filter URLs.

3. Ahrefs Free
   • Run Site Audit to catch things your crawl might miss.
   • Check backlinks to important product/category pages.
   • Check which pages/keywords already bring organic traffic. ahrefs.com

4. PageSpeed Insights
   • Test your homepage plus several representative product and category pages.
   • Don't just test the homepage—ecommerce templates are often where the problems live.

5. Rich Results Test
   • Test a product page.
   • Check Product/Offer/Review structured data and make sure Google can understand the important product information.

One important ecommerce-specific point

Don't let the audit become a giant list of 200 minor warnings. I'd prioritize:

P0: pages accidentally blocked/noindexed, bad canonicals, major indexing problems, 5xx errors
P1: broken internal links, redirect chains, duplicate product/category URLs, important pages poorly internally linked
P2: Core Web Vitals/performance, duplicate/missing metadata, structured-data problems
P3: minor warnings and cosmetic SEO improvements

If your store has fewer than ~500 URLs, you can probably do the entire crawl with Screaming Frog for free. If it's larger, Ahrefs Free's 5,000 monthly crawl credits may make the audit easier. ahrefs.comhelp.ahrefs.com

Bottom line: I'd spend $0 initially. GSC + Screaming Frog + Ahrefs Free + PageSpeed is enough for a solid one-off technical audit of a small ecommerce store.

For a one-off technical SEO audit on a small ecommerce store, I would avoid paying for a full SEO suite unless you plan to keep using it. A good low-budget stack is mostly free and gives you enough data to find the issues that actually affect rankings. seeklab.ioighenatt.es

Recommended budget stack

rankture.com

If you can spend a little money once

For a single audit, I’d consider paying for one month of a crawler/reporting tool rather than subscribing long-term:

• Sitebulb — excellent visual audit reports and site architecture analysis.
• Semrush or Ahrefs — useful if you also want competitor research, keyword gaps, and backlink analysis.

For a small store, though, GSC + Screaming Frog + PageSpeed usually covers the majority of technical problems. seeklab.ioighenatt.es

What I would audit first on an ecommerce site

1. Indexing
   • Are product/category pages indexed?
   • Are filters, search pages, and duplicate URLs accidentally indexed?
   • Are important pages blocked by robots.txt or marked noindex?

2. Product page issues
   • Missing/duplicate title tags
   • Missing meta descriptions
   • Duplicate product descriptions
   • Missing product schema
   • Thin category pages

3. Crawl efficiency
   • Broken links (404s)
   • Redirect chains
   • Incorrect canonicals
   • Orphan product pages
   • Excessive URL parameters

4. Performance
   • Large product images
   • Slow mobile pages
   • Too much JavaScript
   • Poor Core Web Vitals

5. Internal linking
   • Are best-selling products easy to reach?
   • Do category pages pass authority to products?
   • Are discontinued products handled properly?

A practical one-day workflow

1. Connect Google Search Console.
2. Run Screaming Frog on the whole site.
3. Export:
   • 4xx errors
   • 3xx redirects
   • duplicate titles/descriptions
   • missing canonicals
   • indexability problems
4. Test your homepage, top category pages, and top products in PageSpeed Insights.
5. Validate product schema.
6. Prioritize fixes by business impact, not by the number of warnings.

For an ecommerce store, I would especially avoid getting distracted by “SEO score” tools that produce hundreds of minor warnings. The high-value findings are usually indexing mistakes, duplicate URLs, slow templates, poor internal linking, and product schema problems.

For a one-off technical SEO audit on a tight budget, I’d avoid paying for an all-in-one platform. You can get a surprisingly good audit with $0–$50 total.

My budget stack

Screaming Frog is probably the single most useful paid-tool replacement. Its free version crawls up to 500 URLs and checks hundreds of SEO issues, including broken links, redirects, metadata, robots directives, duplicate pages, XML sitemaps and structured data. www.screamingfrog.co.uk

For an ecommerce store, audit these first

1. Indexing & crawlability

• Are important category/product pages indexed?
• Any accidental noindex?
• Are important pages blocked by robots.txt?
• Is the XML sitemap present, clean and submitted?
• Are there thousands of useless filter/faceted URLs being crawled?
• Do canonical tags point to the correct URL?

Search Console is particularly valuable here because it shows Google's indexing/crawling view rather than merely what a crawler thinks should happen. search.google.com

2. Crawl the site with Screaming Frog

Export and inspect:

• 4xx/5xx URLs
• redirect chains
• canonical URLs
• indexability
• duplicate titles/descriptions
• missing titles/H1s
• orphan-like pages you know should be linked
• internal links to redirected/broken URLs
• excessively deep pages

For a small store, the 500-URL limit is often enough. If you have more than 500 URLs, I'd prioritize crawling your category, product and important content sections rather than immediately buying the £199/year licence. www.screamingfrog.co.uk

3. Check ecommerce structured data

Test a representative sample:

• Homepage
• One category/collection page
• 3–5 product pages
• One informational/blog page

For products, pay particular attention to Product, price, availability, reviews/ratings where applicable, and breadcrumbs.

4. Check Core Web Vitals

Run PageSpeed Insights on:

• Homepage
• Top category page
• A typical product page
• Cart/other important template if relevant

Don't obsess over getting a perfect Lighthouse score. Focus on actual user experience, especially LCP, INP and CLS. PageSpeed Insights combines lab testing with real-world Chrome UX data when available. developers.google.com

One thing I'd not spend money on

For a one-off audit, I wouldn't buy Ahrefs/Semrush just for the technical crawl unless you also need backlink/keyword/competitor research. They're excellent products, but they're overkill if your immediate question is "is my store technically healthy?"

If you have ~$50 to spend

I'd still start with the free stack. If the store is large (thousands+ of URLs), spend the money on a short-term crawl tool/license rather than building a permanent subscription stack.

A good audit deliverable is ultimately not a 200-item export. I'd turn the findings into something like:

1. 🔴 Critical: pages Google can't index / major canonical problems
2. 🟠 High: crawl waste, broken internal links, bad redirects, duplicate product/category URLs
3. 🟡 Medium: metadata, headings, pagination/internal linking
4. 🟢 Nice-to-have: performance and minor markup improvements

That gives you a much more actionable audit than simply running an automated score.

If you tell me your ecommerce platform (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a $0 audit workflow specifically for that platform, including exactly what to check in what order.

For a one-off technical SEO audit on a tight budget, I’d avoid buying a big all-in-one SEO subscription. You can get a surprisingly solid audit from a handful of free tools.

My budget stack

If you only use two: use Google Search Console + Ahrefs Free. Ahrefs' current free account allows verified site owners to run Site Audit with 5,000 crawl credits/month and checks 170+ technical/on-page issues. ahrefs.com

Ahrefs Free / Site Audit

What I'd actually audit

For an ecommerce store, I'd work through these in roughly this order:

1. Indexation
   • Are important category/product pages indexed?
   • Are discontinued/out-of-stock pages handled sensibly?
   • noindex, canonical and robots.txt conflicts
   • XML sitemap contents
   • Unexpected indexed URLs, parameters and filter pages

2. Crawlability
   • 404s and 5xx errors
   • Redirect chains/loops
   • Internal links to redirected or dead URLs
   • Orphaned products/categories
   • Excessive faceted-navigation URLs

3. Canonicalization & duplicate content
   • Product variants
   • Sort/filter URLs
   • Trailing-slash/HTTP/HTTPS variants
   • Duplicate product descriptions
   • Category pagination

4. On-page basics
   • Missing/duplicate title tags
   • Missing/duplicate meta descriptions
   • H1 problems
   • Thin category pages
   • Product pages with insufficient unique content

5. Ecommerce structured data
   • Product
   • Offer/price/availability
   • Review/rating markup where applicable
   • Breadcrumbs

6. Performance
   • Core Web Vitals
   • Huge product images
   • JavaScript/CSS bloat
   • Mobile performance

7. Internal linking
   • Important products/categories receiving enough internal links
   • Orphan pages
   • Poorly structured category → subcategory → product relationships

One particularly useful trick

Don't just run the automated audit and fix everything it calls an "error." Prioritize by business impact.

For example:

Product category generating $20k/month + accidentally noindexed = 🔴 urgent
300 product pages missing meta descriptions = 🟡 worthwhile
A few images missing alt text = 🟢 low priority

That prevents you from spending your limited time fixing SEO trivia.

If you want to spend ~$0–$50

I'd do:

$0: Search Console → Ahrefs Free → Screaming Frog → PageSpeed → Rich Results Test.

If your store has more than ~500 URLs, Ahrefs becomes especially attractive because its free Site Audit allowance is currently 5,000 crawl credits/month, whereas Screaming Frog's free crawler is limited to 500 URLs. ahrefs.com

Google Search Console
Screaming Frog SEO Spider
Google PageSpeed Insights

I wouldn't pay for Semrush/Ahrefs Pro/Sitebulb for a single audit unless your store is large or you specifically need competitor/backlink/keyword research. For a one-off technical audit, the free stack is enough to uncover the majority of issues worth fixing.

If you tell me what ecommerce platform you're on (Shopify, WooCommerce, BigCommerce, etc.) and roughly how many products/URLs you have, I can give you a lean audit workflow tailored to it.

For a one-off technical SEO audit on a tight budget, I wouldn’t buy a full $100+/month SEO suite. You can get a very solid audit for $0, or spend ~$30 for a little extra analysis.

My budget stack

1. Start with Google Search Console.
This is your source of truth for what Google actually knows about your store: indexed pages, excluded pages, sitemap status, crawl/indexing problems, and search performance. I’d inspect Page indexing, Sitemaps, Core Web Vitals, and a sample of important URLs.

2. Run Ahrefs Free.
This is probably the best free all-in-one crawler for your situation. Its free account can crawl up to 5,000 crawl credits per verified project/month and checks 170+ technical/on-page issues, including indexability, redirects, duplicate content, links, images, JavaScript, robots.txt, sitemaps and structured data. ahrefs.com

Ahrefs Free / Site Audit

3. Run a second crawl with Screaming Frog.
The free version handles up to 500 URLs per crawl, which is plenty for a small store. www.screamingfrog.co.uk Having two crawlers is useful because they surface different problems and gives you confidence that an issue isn't just a crawler quirk.

Screaming Frog SEO Spider

4. Check PageSpeed Insights on your money pages.
Don't test every URL. Test representative product, category/collection, homepage, and informational pages, especially on mobile. PSI combines real-user Chrome data with Lighthouse diagnostics and reports Core Web Vitals such as LCP, CLS and INP. developers.google.com

Google PageSpeed Insights

What I'd actually audit

For ecommerce, prioritize these rather than obsessing over an overall "SEO score":

1. Indexation
   • Are important category/product pages indexed?
   • Are thousands of filter/parameter URLs getting crawled?
   • Are valuable pages accidentally noindexed?
   • Is the XML sitemap clean?

2. Canonicalization
   • Product variants
   • URL parameters
   • Duplicate category paths
   • Trailing slash/case variations
   • HTTP → HTTPS and www/non-www

3. Crawling & internal links
   • 404s
   • 3xx chains
   • Orphan products
   • Products buried too many clicks deep
   • Internal links pointing to redirected URLs

4. Product/category SEO
   • Unique title tags
   • Unique H1s
   • Duplicate/thin category pages
   • Product pages that are missing useful indexable content
   • Proper canonical URLs

5. Structured data
   • Product
   • Offer/price
   • Availability
   • Review/rating markup where legitimately applicable
   • Breadcrumbs

6. Performance
   • Huge product images
   • Slow mobile pages
   • Excessive third-party scripts/apps
   • Core Web Vitals

7. Robots.txt + sitemap
   • Make sure you're blocking genuine crawl waste rather than accidentally blocking valuable pages.

If you can spend ~$30

For a one-off audit, I'd consider paying for one month of Ahrefs Starter rather than subscribing to an expensive SEO platform. Ahrefs currently lists Starter at $29/month, while the free tier already gives verified sites 5,000 Site Audit crawl credits. help.ahrefs.com

But honestly, I'd start free. For a small ecommerce store, Search Console + Ahrefs Free + Screaming Frog + PageSpeed Insights can uncover the majority of technical problems worth fixing.

If you tell me roughly how many URLs/products your store has and whether you're on Shopify, WooCommerce, BigCommerce, etc., I can give you a specific one-off audit workflow (including exactly what reports to export and what to check first).

For a one-off technical SEO audit on a tight budget, I’d avoid paying for a big all-in-one suite. You can get most of what matters with a handful of free tools.

My $0-ish toolkit

Ahrefs is particularly useful right now: its free account gives verified site owners 5,000 crawl credits/month and checks 170+ technical/on-page issues. help.ahrefs.com

The audit I'd actually do

For an ecommerce store, I'd prioritize these in order:

1. Indexability
   • Are important category/product pages indexed?
   • noindex, robots.txt and canonical problems
   • XML sitemap
   • Accidentally indexed filters/search/parameter URLs

2. Crawl & internal linking
   • 404s and broken links
   • Redirect chains
   • Orphan products/categories
   • Important pages buried too many clicks deep

3. Duplicate/near-duplicate URLs
   • Product variants
   • Faceted navigation
   • Sort/filter URLs
   • Trailing-slash/HTTP/HTTPS variations
   • Duplicate titles/descriptions

4. Ecommerce on-page SEO
   • Missing/duplicate title tags
   • Missing H1s
   • Weak category-page copy
   • Product pages with very little unique content
   • Image alt text
   • Product structured data

5. Performance
   • Check your homepage, a major category page, and 3–5 representative product pages in PageSpeed Insights.
   • Pay particular attention to mobile Core Web Vitals, rather than obsessing over the overall PageSpeed score.

6. Search Console reality check
   • Look at pages receiving impressions but few clicks.
   • Check indexing/excluded pages.
   • Look for sudden drops in clicks/impressions.
   • Compare your sitemap's URLs with Google's indexed URLs.

One important ecommerce caveat

Don't blindly "fix" every warning a crawler gives you. Ecommerce sites naturally generate lots of URLs through filters, variants, pagination, etc. The key question is:

Which URLs should Google crawl and index, and which should it ignore?

That's much more valuable than getting an SEO audit tool's health score from 72 → 95.

If you can spend ~$20–50

For a one-off audit, I'd actually spend the money on a month of a good crawler/SEO platform rather than maintaining a subscription indefinitely. But if your store is under ~5,000 crawlable pages, I'd first try the free Ahrefs + Search Console + Screaming Frog combination.

If you tell me what platform your store uses (Shopify, WooCommerce, Magento, etc.) and roughly how many products/URLs you have, I can give you a very specific one-day, step-by-step audit checklist and tell you exactly which reports to pull.

For a one-off technical SEO audit on a tight budget, I’d avoid expensive all-in-one SEO suites. You can get a very solid audit with a small stack:

My recommended workflow

1. Start with Search Console
   • Indexing → pages excluded/errors
   • Sitemaps
   • Core Web Vitals
   • Manual actions/security
   • Search queries and pages losing impressions

2. Crawl the entire store with Screaming Frog

Check:

• 4xx/5xx pages
• redirect chains
• duplicate or missing title tags/meta descriptions
• canonical tags
• indexability
• orphan-like pages
• pagination/faceted navigation
• XML sitemap URLs
• internal linking
• excessive URL parameters

3. Run PageSpeed Insights on representative pages

Test at least:

• homepage
• category/collection page
• product page
• highest-value landing page

Don't obsess over getting a perfect score; prioritize actual Core Web Vitals problems.

4. Validate ecommerce structured data

Product pages are particularly important. Check Product, Offer, Review/AggregateRating where applicable, plus breadcrumbs.

5. Use Ahrefs Webmaster Tools as a second opinion

It can surface issues your manual crawl may miss and gives you useful backlink information without paying for a full Ahrefs subscription.

If you only want three tools

I'd use Google Search Console + Screaming Frog + PageSpeed Insights.

That combination is enough to identify most of the high-impact technical SEO problems on a small ecommerce site without committing to a monthly SEO platform.

If you tell me what platform you use (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many URLs/products you have, I can also give you a $0–$100 audit checklist specifically for that setup.

For a one-off technical SEO audit on a tight budget, you can get surprisingly far with free tools. I’d use this stack:

1. Google Search Console — free, essential. Check indexing, crawl issues, Core Web Vitals, sitemap status, and which pages Google actually indexes.
2. Screaming Frog SEO Spider — probably the best value for the audit itself. The free version crawls up to 500 URLs, which is enough for many small stores. Look for broken links, redirects, duplicate titles, canonicals, missing metadata, orphan-like pages, and indexability issues.
3. Google PageSpeed Insights — free. Test your homepage plus important product/category templates for Core Web Vitals and performance problems.
4. Google Rich Results Test — free. Check product, breadcrumb, organization, and other structured data.
5. Google's robots.txt Tester / Search documentation — useful for checking whether crawling is accidentally blocked.
6. Ahrefs Webmaster Tools — free for verified sites and useful for an additional crawl plus backlink/SEO diagnostics.

If I had $0–50 to spend

I'd spend $0 initially and do:

Search Console → Screaming Frog → PageSpeed Insights → Rich Results Test → Ahrefs Webmaster Tools

Then consolidate the findings into a spreadsheet with columns for:

One important ecommerce caveat: don't just crawl the site and fix everything Screaming Frog flags. Ecommerce sites legitimately have lots of parameters, filters, duplicate product URLs, pagination, out-of-stock products, variants, and faceted navigation. The audit should distinguish intentional architecture from actual SEO problems.

If you tell me what platform you use (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a step-by-step $0 audit checklist tailored to it.

For a one-off technical SEO audit on a tight budget, you can get surprisingly far with free tools plus one inexpensive crawler.

My budget stack

Screaming Frog is probably the one I'd pay attention to most for a one-off audit. Its free crawler is often enough for a small store.

What I'd actually do

1. Start with Search Console.
Look at:

• Pages indexed vs. excluded
• Pages marked “Crawled — currently not indexed”
• 404/5xx errors
• Sitemap status
• Core Web Vitals
• Mobile usability, if reported
• Manual actions/security issues

2. Crawl the whole store with Screaming Frog.

Check:

• 4xx and 5xx pages
• Redirect chains/loops
• Canonical tags
• noindex directives
• Duplicate titles/descriptions
• Duplicate or near-duplicate URLs
• Orphaned pages
• Pagination/faceted-navigation URLs
• Internal linking
• XML sitemap URLs
• Robots.txt restrictions

For ecommerce, faceted navigation and duplicate product/category URLs deserve particular attention—they can create thousands of crawlable URLs from a relatively small catalog.

3. Run your important templates through PageSpeed Insights.

Don't just test the homepage. Test representative:

• Homepage
• Category/collection page
• Product page
• Cart or other important transactional page

Pay particular attention to LCP, INP, and CLS, rather than treating the overall performance score as the goal.

4. Check structured data.

For product pages, verify that your structured data is being detected correctly and that important properties such as price, availability, product name, images, and reviews are represented appropriately.

5. Compare your sitemap and crawl.

Your XML sitemap shouldn't simply contain every URL your platform happens to generate. Ideally, it should primarily expose canonical, indexable URLs that you actually want in search.

If you can spend ~$50–100

I wouldn't buy five SEO subscriptions. For a one-off audit, I'd spend the money on one month of a more capable crawler/SEO platform, if your store is too large for Screaming Frog's free 500-URL limit, and then cancel it.

The free stack above is enough to uncover many of the technical problems that actually matter for a small ecommerce site.

If you tell me what platform your store runs on (Shopify, WooCommerce, BigCommerce, custom, etc.) and roughly how many products/URLs you have, I can give you a specific $0–$100 audit workflow and checklist.

If you're doing a one-off technical SEO audit rather than ongoing SEO, you can get excellent results without paying for an expensive monthly subscription. I'd prioritize a combination of free tools plus a few low-cost options.

Here's a budget-friendly stack:

If your site has more than 500 pages, consider buying one month of Screaming Frog (it's inexpensive compared with enterprise SEO suites) and cancel afterward.

If you have around $50–100

I'd add one of these:

• Ahrefs Webmaster Tools — free for verified sites, excellent technical issue reporting.
• SE Ranking — affordable one-month subscription with site audits and rank tracking.
• Mangools — good if you also want keyword research.

If you have around $150

One month of:

• Semrush
• Ahrefs

Download everything you need during the month, then cancel. For a one-time audit, this is often more cost-effective than maintaining a subscription.

What I'd check for an ecommerce site

Technical:

• Crawl errors (404s, 5xx)
• Redirect chains and loops
• Canonical tags
• Duplicate product pages
• Noindex pages
• Robots.txt issues
• XML sitemap quality
• HTTPS issues
• Pagination
• Faceted navigation causing duplicate URLs

Performance:

• Core Web Vitals
• Image optimization
• JavaScript rendering
• Lazy loading
• Caching
• Compression

On-page:

• Duplicate title tags
• Missing meta descriptions
• Thin category pages
• Missing H1s
• Internal linking
• Orphan pages
• Breadcrumbs

Structured data:

• Product schema
• Review schema
• Organization schema
• Breadcrumb schema
• Availability
• Price
• GTIN/SKU

Ecommerce-specific:

• Out-of-stock product handling
• Variant URLs
• Filtered URLs being indexed
• Canonicalization of product variants
• Internal search pages
• Category depth
• Broken product images

Lowest-cost setup (my recommendation)

For most small ecommerce stores, I'd use:

• Free: Google Search Console
• Free: PageSpeed Insights
• Free: Google Rich Results Test
• Free (or paid if needed): Screaming Frog SEO Spider
• Free: Ahrefs Webmaster Tools

That combination covers the vast majority of technical SEO issues without requiring an expensive recurring subscription.

If your store runs on Shopify, WooCommerce, BigCommerce, Magento, or another platform, I can also provide a platform-specific technical SEO checklist, since each has its own common pitfalls.

If your goal is a one-off technical SEO audit rather than an ongoing subscription, you can get surprisingly good coverage for under $50–100, and in some cases for free.

Here's a cost-effective stack:

If your store has fewer than 500 pages

You can do almost everything with the free version of Screaming Frog.

Check for:

• 404 pages
• Redirect chains
• Missing title tags
• Duplicate titles
• Missing meta descriptions
• Thin pages
• Canonical issues
• Images without alt text
• Oversized images
• Orphan pages (if you connect Analytics/Search Console)
• Pagination problems

For Shopify, WooCommerce, or similar stores

Pay special attention to:

• Duplicate category and filter URLs
• Product variants generating duplicate pages
• Canonical tags
• Faceted navigation
• XML sitemap quality
• Internal linking to important collections
• Noindex directives
• Crawl depth (important products shouldn't be 6+ clicks away)

Performance

Run your:

• Homepage
• Top collection/category page
• Top-selling product page
• Cart page

through PageSpeed Insights.

Look for:

• Largest Contentful Paint (LCP)
• Cumulative Layout Shift (CLS)
• JavaScript blocking rendering
• Large images
• Unused CSS/JS

Search Console

This is often where the highest-impact issues appear.

Review:

• Indexing report
• Pages excluded from indexing
• Core Web Vitals
• Crawl stats
• Manual actions
• Search queries losing impressions
• Sitemap status

If you have $20–50 to spend

A one-month subscription to one of these can uncover issues that free tools may miss:

• SE Ranking
• Sitechecker
• Ahrefs Webmaster Tools (free for verified sites with useful technical reports)

If you have around $200

One month of Ahrefs or Semrush can be worthwhile if you also want backlink analysis, keyword research, competitor insights, and a more comprehensive site audit. You can complete the audit and export reports before canceling.

Best value overall

For most small ecommerce stores, I'd recommend this combination:

1. Free: Google Search Console
2. Free: Google PageSpeed Insights
3. Free: Schema Markup Validator
4. Free (or paid if needed): Screaming Frog SEO Spider
5. Free: Ahrefs Webmaster Tools

That setup is enough to identify the vast majority of technical SEO issues affecting a typical ecommerce site without committing to an expensive recurring subscription.

If you only need a one-off technical SEO audit rather than an ongoing subscription, you can get surprisingly far for under $100, and even for free if you're willing to spend a bit more time.

Here's a practical stack.

If your site has fewer than 500 pages

You may not need to spend anything.

Run:

• Screaming Frog crawl
• Google Search Console review
• PageSpeed Insights on:
  • homepage
  • category pages
  • top product pages
  • checkout/cart (if public)
• Rich Results Test

That will uncover most technical issues.

If your store is larger (500–10,000 pages)

A one-month subscription is often worthwhile.

Good options:

• Sitebulb (excellent visual reports)
• Ahrefs (one month if you also want keyword and backlink data)
• Semrush (one month for a broad SEO toolkit)

Cancel after exporting the reports.

What to check during the audit

For ecommerce, prioritize:

• Crawlability
  • broken links (404s)
  • redirect chains
  • orphan pages
  • crawl depth
• Indexing
  • pages accidentally blocked
  • duplicate product pages
  • duplicate category pages
  • canonical tags
  • noindex mistakes
• Metadata
  • duplicate title tags
  • missing meta descriptions
  • multiple H1s
  • missing image alt text
• Performance
  • Core Web Vitals
  • oversized images
  • render-blocking JavaScript
• Structured data
  • Product schema
  • Review schema
  • Breadcrumb schema
• Internal linking
  • weak product linking
  • category hierarchy
  • pagination
• XML sitemap
  • only indexable URLs included
  • submitted in Search Console
• HTTPS
  • mixed content
  • HTTP redirects correctly to HTTPS

Best value if you have around $50

I'd use:

• Free: Google Search Console
• Free: PageSpeed Insights
• Free: Rich Results Test
• Paid: Screaming Frog license (one year, relatively inexpensive if you'll use it again)

Screaming Frog is widely regarded as one of the best technical SEO crawlers and is often the only paid tool many consultants use for audits.

If you have around $100

For a single audit, I'd recommend:

1. Screaming Frog
2. Ahrefs (one month) or Sitebulb (one month)
3. Google Search Console
4. PageSpeed Insights

That combination covers nearly everything you'd expect in a professional technical audit without committing to expensive long-term subscriptions.

If your goal is a one-off technical SEO audit rather than an ongoing subscription, you can get surprisingly comprehensive results for well under $100—and in some cases for free.

Here's a cost-effective stack:

If your site has fewer than 500 pages

You probably don't need to spend anything.

Use:

• Google Search Console
• Screaming Frog (free)
• PageSpeed Insights
• Ahrefs Webmaster Tools

That combination catches the vast majority of technical issues:

• broken links
• redirect chains
• duplicate titles/descriptions
• missing canonicals
• orphan pages (partially)
• robots.txt problems
• XML sitemap issues
• indexability
• Core Web Vitals
• image optimization
• structured data errors

If your store has 500–5,000 pages

I'd spend money on one month only of a premium crawler.

Good options:

• Sitebulb — excellent visual explanations and reports.
• SE Ranking — affordable monthly plans with technical audits.
• Semrush — powerful if you can complete everything within a single billing cycle.

If I only had $50

I'd do:

• Free: Google Search Console
• Free: PageSpeed Insights
• Free: Ahrefs Webmaster Tools
• Free: Rich Results Test
• One month of Sitebulb (or another crawler with a monthly option)

That's enough to produce a professional-quality audit.

What to check for an ecommerce store

Prioritize these issues because they tend to have the biggest impact:

1. Crawlability
   • robots.txt
   • XML sitemap
   • orphan pages
   • crawl depth

2. Indexation
   • pages accidentally marked noindex
   • canonical mistakes
   • duplicate category/product pages
   • faceted navigation creating duplicate URLs

3. Site architecture
   • click depth
   • internal linking
   • breadcrumb structure

4. Performance
   • Largest Contentful Paint (LCP)
   • Interaction to Next Paint (INP)
   • Cumulative Layout Shift (CLS)
   • oversized images
   • unused JavaScript

5. Product pages
   • missing structured data
   • missing alt text
   • duplicate descriptions
   • broken images

6. Technical issues
   • 404s
   • redirect chains
   • mixed content
   • HTTPS problems
   • broken canonicals

Best value overall

If you're only doing this once, I'd rank the tools by value like this:

1. Google Search Console (free)
2. Screaming Frog (free for up to 500 URLs)
3. Ahrefs Webmaster Tools (free)
4. Google PageSpeed Insights (free)
5. Sitebulb (one-month subscription if your site is larger)

That combination covers nearly everything an SEO consultant would review in a technical audit without requiring an expensive annual subscription.

If you only need a one-off technical SEO audit rather than an ongoing subscription, you can get excellent coverage for well under $100, and in some cases completely free.

Here's a practical stack that gives the best value.

If your store has fewer than 500 pages

You can probably complete the audit entirely for free using:

• Google Search Console
• Screaming Frog (free version)
• PageSpeed Insights
• Ahrefs Webmaster Tools
• Rich Results Test

That combination catches most important technical issues.

If your store has more than 500 pages

Spend money only on Screaming Frog.

A license is relatively inexpensive compared to enterprise SEO tools and lets you crawl your whole site. It can identify:

• broken links (404s)
• redirect chains
• duplicate titles
• duplicate meta descriptions
• thin pages
• orphan URLs (when connected to Search Console)
• missing canonicals
• canonical conflicts
• indexability problems
• oversized images
• missing alt text
• JavaScript rendering issues
• XML sitemap problems

For a one-off audit, it's one of the highest-value purchases.

Optional one-month subscriptions

If you're willing to spend around $100–150 for one month, these can add deeper insights:

• Ahrefs — backlinks, keyword opportunities, content gap analysis.
• Semrush — comprehensive site audits, keyword tracking, and competitor research.

If you only need a single audit, cancel after exporting all reports.

For Shopify stores

Add these checks:

• Duplicate collection URLs
• Product variants creating duplicate content
• Canonical tags
• Pagination
• Faceted navigation
• XML sitemap coverage
• Robots.txt customization
• Product structured data
• Collection structured data
• Image optimization

A practical workflow (about 2–3 hours)

1. Review indexing, coverage, and performance in Google Search Console.
2. Crawl the entire site with Screaming Frog.
3. Run PageSpeed Insights on:
   • Homepage
   • Top collection page
   • Top product page
   • Cart page
4. Check structured data with the Rich Results Test.
5. Review Ahrefs Webmaster Tools for technical issues and backlinks.
6. Create a prioritized action list:
   • High priority: indexing problems, crawl errors, canonical issues, broken links, noindex mistakes.
   • Medium priority: duplicate metadata, missing alt text, redirect chains.
   • Low priority: title length, meta description improvements, image compression.

For a small ecommerce store, this approach covers the majority of technical SEO issues without requiring an expensive enterprise subscription. If your budget is around $50 or less, I'd recommend prioritizing the free tools plus a temporary Screaming Frog license if your site exceeds the free crawl limit.