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SEO for AI AgentsSEO for AI Agents
Free SEO Audit

A free SEO audit that grades both surfaces - classic Google and the AI engines.

Most free SEO audits still grade you for 2015 Google: title, H1, alt text, broken links, page speed. Useful, but incomplete. Roughly half of US informational queries now return an AI Overview above the blue links [1], and the AI engines mediating discovery (ChatGPT, Claude, Perplexity, Gemini) use a different ranking surface entirely. We grade both. Free, sourced, no signup.

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No signup · Crawls up to 50 pages · 60-90 seconds · Free

What the audit grades

Forty-five checks across eight dimensions: Foundational, Technical, On-page, AI Overviews (AIO), Generative Engine Optimization (GEO), Local, E-E-A-T, and Performance. Each check produces a finding with the exact evidence (HTTP headers, JSON-LD blocks, content excerpts, URLs) and a fix shaped as an engineer-ready ticket. We crawl up to 50 pages on the free tier.

49.9%
Of US queries returned an AI Overview by Q4 2025 — up from <10% the year before.
Capston.ai / Semrush Sensor
44.2%
Of all LLM citations come from the first 30% of a cited page.
Passage-citation analysis, 2025
4.8×
Higher AI-answer selection probability for pages with 15+ Knowledge Graph entities.
Entity-density audits, 2025
Free audit, 2020
Free audit, 2026
What it grades
Meta tags, broken links, page speed.
What it grades
All of the above, plus AI-crawler access and citation worthiness.
Crawler tested
Googlebot.
Crawler tested
Googlebot, OAI-SearchBot, ClaudeBot, PerplexityBot, Bingbot.
Schema coverage
Rich-result eligibility only.
Schema coverage
Rich results + LLM entity extraction (Person, Org sameAs depth).
Output
Color-coded scorecard.
Output
Evidence per finding + 30/60/90 plan.

What's different about this audit

Most free SEO audits stop at the technical layer. They tell you your meta description is too long and your CLS is 0.18. Real findings, but they don't tell you whether ChatGPT can read your page, whether Google's AI Overview will cite you, or whether Perplexity's passage-extraction pipeline finds your answers. We grade all three explicitly.

The eight dimensions

Why "free" matters here

The freemium-with-no-signup format exists because the audit's job is to give you the answer, not to capture your email. Seobility built a $5M+ ARR business on exactly this shape [1], and they were right to. The only honest version of a free SEO audit is one that runs without a signup gate, produces a shareable URL, and tells you everything wrong with your site even if you never come back. Ours does the same, with the AI-search layer added.

What a 2026 audit must include that a 2020 audit didn't

AI crawler access parity

Most sites silently block OAI-SearchBot, PerplexityBot or ClaudeBot at the robots.txt or WAF layer without realising it [4] [5]. If GPTBot can read you but ChatGPT's search index (OAI-SearchBot) cannot, you are invisible to ChatGPT search. We test each one.

Passage-level extractability

AI engines retrieve passages, not pages. The optimal extractable unit is roughly a 134-167 word self-contained answer block immediately after a question-format heading. 44.2% of all LLM citations come from the first 30% of a page. We grade whether your pages are shaped that way.

Entity density and schema depth

Pages with 15+ Knowledge Graph entities show 4.8x higher selection probability in AI answers. Real people, real places, real organizations, with Person and Organization schema linking via sameAs to Wikidata, LinkedIn, GitHub. We test all of it.

What you get

How to read your score

Above 80 is strong; 60-80 means optimization potential; below 60 is critical. The score is a guide, not a verdict - the findings list is the operational truth. Start at the top of the prioritized list and ship one finding at a time. Most sites pick up 10-15 points in the first sprint.

Run the audit. See your gaps in 60 seconds.

Free, no signup, every finding shows the evidence and a fix you can ship today.

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References
  1. [1]Capston.ai, citing Semrush Sensor: AI Overviews appeared in 49.92% of US queries by Q4 2025. capston.ai
  2. [2]Ahrefs, December 2025: position-1 CTR drops 58% when an AI Overview is present (300,000 keyword sample). ahrefs.com
  3. [3]Google Search Central, technical SEO and AI features documentation. developers.google.com
  4. [4]OpenAI, OAI-SearchBot crawler documentation. platform.openai.com
  5. [5]Anthropic, ClaudeBot crawler documentation. docs.anthropic.com