Can ChatGPT actually read your website?
More and more customers ask an AI assistant instead of Google. This check tells you whether ChatGPT, Claude and Perplexity can read your site: crawler permissions, content without JavaScript, structured data.
Genuinely free. No sign-up, no email, no limits, no cookies. We don't store the URL you analyse.
Loading the security check…
What this tool checks
Four things, weighted by how much they matter. Whether there's real content in the HTML without running JavaScript, the single biggest factor, because many AI crawlers see only that. Whether your robots.txt blocks the live AI crawlers. Whether you publish structured data (schema.org) describing who you are and what you offer. And the fundamentals: title, description, headings, canonical, sitemap, OpenGraph.
None of it uses AI to judge your site. The checks are deterministic rules on your real code, so the same site scores the same every time.
The other checks are on the tools page.
Frequently asked questions
›Why does it matter whether AI can read my site?
More and more people ask ChatGPT, Claude or Perplexity instead of searching Google. When they do, the assistant reads sites in real time to answer, and if yours is blocked or invisible to it, you simply don't appear in the answer. It's the same visibility question as SEO, aimed at a new audience.
›What blocks AI from reading a site?
Two things, mainly. A robots.txt that blocks the live crawlers (the ones ChatGPT, Claude and Perplexity use to answer, as opposed to the training crawlers), which is often done by accident. And content that only appears after JavaScript runs: many AI crawlers don't execute JavaScript, so to them a JavaScript-only site is a blank page.
›What's the difference between training and live crawlers?
Training crawlers (GPTBot, ClaudeBot and similar) collect content to train future models. Live crawlers (OAI-SearchBot, ChatGPT-User, PerplexityBot and similar) fetch pages to answer a user's question right now. Blocking the training ones is a legitimate choice that costs you no visibility; blocking the live ones removes you from AI answers.
›Do I need an llms.txt file?
Not yet. It's an emerging standard for presenting content to AI, but the major providers don't officially support it, so its absence isn't a problem. It's just an opportunity to keep an eye on. The things that matter today are crawler permissions, server-rendered content and structured data.