Top 7 Free AI SEO Audit Tools to Check Your AEO & GEO Readiness in 2026

Most sites still pass a traditional SEO audit and fail an AI one without anyone noticing. Meta tags are fine, Core Web Vitals are fine, but ChatGPT, Perplexity, Gemini, and Google's AI Overviews can't parse the page the same way Googlebot does, and a growing share of buying research now starts inside one of those answers instead of a search results page. The tools below check that gap specifically, how discoverable, extractable, and citable your content actually is to generative engines, and every one of them has a genuinely free tier or a no-signup scan.

1. seoscore.tools

A single-page scanner that runs 260+ checks across technical SEO, on-page factors, AEO readiness (FAQ schema, Q&A formatting, speakable markup, citation readiness), and GEO readiness (AI Overview optimization, comparison tables, semantic structure) in one pass. It's free with no signup, no daily scan cap, and no account required, which makes it a good first-pass tool before a deeper audit. The tradeoff is scope: it scans one URL at a time and doesn't crawl a full site or track rankings over time, so pair it with a crawler for anything larger than a landing page.

2. Semrush AI Search Visibility Checker

Semrush's free version of this tool checks how a brand shows up across ChatGPT, Gemini, and Google's AI Overviews, tracking both direct links and unlinked brand mentions across AI-generated answers. No signup is required for the free scan, and it's a fast way to see whether a brand is even entering the conversation before investing in deeper AEO work. It's more of a visibility snapshot than a technical fix-it list, so treat it as a diagnostic starting point rather than the whole audit.

3. Ahrefs Brand Radar

Ahrefs' free AI visibility checker queries ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews using prompts derived from real search behavior rather than made-up test questions, which makes the free preview more representative of what actual customers are asking. It separates mentions (the AI names the brand) from citations (the AI links to the site), a distinction that matters a lot when deciding what to fix first. The free tier is a limited preview; full historical tracking sits behind Ahrefs' paid plans.

4. Birdeye AI Visibility Checker

Birdeye's free tool generates an AI Visibility Score along with top citations, share-of-voice detail, and sentiment signals, currently scoped to ChatGPT in the free version. It's especially useful for local and multi-location businesses, since it factors in location and reputation signals that pure technical scanners tend to ignore. Expanding coverage to Gemini and Perplexity requires the paid Search AI product, so treat the free version as a ChatGPT-specific gut check.

5. AI Rank Lab's Free SEO, AEO & GEO Audit

This scanner checks 100+ ranking factors spanning technical, content, and off-page signals, then evaluates visibility across ChatGPT, Claude, Gemini, and Perplexity in a single unified report. Results come as a prioritized fix list plus a downloadable PDF, which is handy for sharing with a client or a team that doesn't want to log into a dashboard. Because it covers three pillars (SEO, AEO, GEO) at once, it can feel dense for a quick check, it's better suited to a proper sit-down audit than a five-minute scan.

6. AI SEO Audit by SEOGrow

This free tool focuses specifically on AEO, GEO, and E-E-A-T signals for a given page, evaluating how readable and citable the content is for engines like ChatGPT and Perplexity. It's narrower than the multi-pillar platforms above, which is actually the point — for someone who already runs regular technical SEO audits and just wants a dedicated LLM-readiness check on top, a page-focused tool like this is less overhead than a full-site scanner.

7. Anshul Rana's Free AI SEO Audit

The one entry on this list that isn't a self-serve scanner. Anshul Rana, a Top Rated Plus AI SEO, AEO, and GEO specialist on Upwork with a 100% Job Success Score, offers a free AI SEO audit that's reviewed by a person rather than generated purely by an algorithm. That matters because automated scanners are good at flagging missing schema or thin FAQ content, but they can't tell you whether your positioning would actually survive being paraphrased inside a ChatGPT answer, that judgment call is where an experienced reviewer earns their keep. It's a reasonable last stop after running one or two of the automated tools above: use the scanners to catch the technical gaps, then use a manual review to sanity-check the parts a script can't evaluate.

Which One Should You Actually Use?

None of these tools fully replace the others, and running just one will leave blind spots. A reasonable free workflow looks like this: start with a multi-pillar scanner such as seoscore.tools or AI Rank Lab to get a baseline technical and content score, run a visibility check through Semrush or Ahrefs to see whether AI engines are already mentioning the brand, and finish with a manual review, like the one offered on anshulrana.in for anything the automated tools flagged as borderline. Free tools are enough to find the gaps; closing them usually still takes a person who understands why an AI model chose to cite one page over another.

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