GEO Checker is a free technical GEO audit tool. Enter any public URL and it reads the page HTML and robots.txt, then scores six dimensions: AI comprehension, content freshness, citation authority, competitive positioning, answer-first content and technical optimization.
You get a score out of 100 with a letter grade and a per-dimension breakdown, plus a crawler access check across 14 families of AI crawlers (GPTBot, Google-Extended, PerplexityBot, ClaudeBot and others) so you can see what robots.txt blocks. The score is rule-based and reproducible, so the same URL scores the same way twice. There is no signup or login, and every dimension links to a concrete fix.
Built for SEO consultants, agencies and in-house marketing teams who need to know whether AI search engines can read a site before investing in content.
As an SEO consultant I kept getting the same client question: can AI search engines actually read my site? Existing tools either force an account, return an opaque LLM opinion, or bury the crawler-access answer. I wanted a reproducible, rule-based audit anyone can run on a public URL in seconds, so I built GEO Checker around six clear dimensions and the robots.txt reality of AI crawlers.