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Free SEO audit tool

Enter a URL. We fetch the page along with its robots.txt, sitemap, and llms.txt, then run 40+ checks across technical SEO, on-page structure, schema, and AI search readiness. It takes a few seconds, and the score needs no email.

Works on any public page. No email needed for the score.

What the audit checks

Every check is run against the HTML your server actually returns, instead of a rendered screenshot. Here is the whole list, grouped the way the score is weighted.

Technical & crawlability

30% of the score

Whether a search engine can reach the page and is allowed to keep it.

  • HTTPS and certificate
  • HTTP status code
  • Redirect chain length
  • Time to first byte
  • robots.txt present and readable
  • Bot protection turning crawlers away
  • Googlebot allowed on this path
  • noindex and nofollow directives
  • Canonical tag and whether it points here
  • XML sitemap found and declared
  • Mobile viewport
  • Language declaration
  • Character encoding
  • Security headers
  • HTML document weight

On-page SEO

30% of the score

The parts of the page a search engine reads to decide what it is about.

  • Title tag and its length
  • Meta description and its length
  • Single H1
  • Heading order with no skipped levels
  • Word count of visible copy
  • Image alt text coverage
  • Lazy loading on images
  • Internal and external link counts
  • Links with no readable text
  • Favicon
  • URL readability

Structured data & sharing

15% of the score

What machines are told about the page, beyond the words on it.

  • JSON-LD present and valid
  • Schema types declared
  • Organization or LocalBusiness identity
  • Open Graph title, description, and image
  • Social preview image
  • Twitter card

AI search readiness

25% of the score

Whether ChatGPT, Claude, Perplexity, and AI Overviews can read and quote the page.

  • AI crawler access in robots.txt
  • llms.txt at the domain root
  • Content present without running JavaScript
  • Question-shaped subheadings
  • Paragraphs short enough to quote whole
  • FAQPage or HowTo schema
  • Named author or reviewer
  • Machine-readable dates
  • Lists and tables
  • Brand named in the body copy

Questions about the tool

Is the SEO audit tool free?+

The score, the 4 category breakdowns, and the 3 highest-impact issues are free and need no signup. The rest of the report opens after you enter an email.

What does the audit check?+

Between 41 and 43 checks, depending on what the page has. They cover technical crawlability, on-page structure, structured data, and AI search readiness. The full list is on this page.

Why did the audit report a 404 when my site loads fine?+

Some sites sit behind bot protection that answers an unrecognised crawler with a 404 or a challenge page. When that happens we fetch the page again as a browser, audit what a browser sees, and flag the block separately. If you still see a 404, the page really is missing for everyone.

Does it check whether AI tools can read my site?+

Yes. The audit tests whether robots.txt allows GPTBot, ClaudeBot, PerplexityBot, and Google-Extended, whether the content survives without JavaScript, and whether passages are shaped to be quoted. For a deeper look at crawler access alone, use the AI crawler check.

How is the score calculated?+

Every check carries an impact weight. A pass earns the full weight, a partial pass earns half, a failure earns none. Category scores are the percentage earned, and the headline score blends them at 30% technical, 30% on-page, 25% AI readiness, and 15% structured data.

Does it crawl my whole site?+

No. It audits the single URL you enter, plus that domain's robots.txt, sitemap.xml, and llms.txt. Site-wide crawling is part of the paid engagement.

Does this measure Core Web Vitals or page speed?+

No. The only timing we report is time to first byte, which is how long your server took to send the HTML. We do not measure LCP, INP, or CLS, because those need a rendered page rather than the markup. Run PageSpeed Insights alongside this audit to cover both.

How is this different from PageSpeed Insights?+

PageSpeed Insights measures loading performance on a rendered page. This audit reads what is in your HTML: tags, headings, schema, crawler rules, and how quotable the copy is. They answer different questions and it is reasonable to run both.

I fixed something. Will re-running show the change?+

Yes. Pressing the button always refetches your page rather than replaying an earlier result, so a fix shows up on the next run. Each report also shows the time it was fetched.

Do I need to install anything or verify my domain?+

No. The tool fetches your page the same way a search engine would, so it works on any public URL, including a competitor's.

AI crawler check

See which of 10 AI platforms your robots.txt lets through, agent by agent.

Open the check

Want the whole site checked?

Our SEO and GEO work runs these checks across every page, ranks the fixes, and ships them.

See how it works