Free tool
Can ChatGPT, Claude and Perplexity read your site?
Paste your address. We read your robots.txt for eight named AI crawlers, then request your home page once as a browser and once each as GPTBot, ClaudeBot and PerplexityBot, live, right now. No email, no account.
Takes a few seconds · checks only sites you own or are authorized to test · the address you check is not kept
What this checks
Two different things, because they fail independently. First: whether your robots.txt file names GPTBot, ChatGPT-User, OAI-SearchBot, ClaudeBot, Claude-User, PerplexityBot, Google-Extended or CCBot and disallows them, in full or in part. Second: whether your page itself, or a firewall, a CDN rule or a bot-management product sitting in front of it, actually lets GPTBot, ClaudeBot and PerplexityBot load the page when they try. That is separate from what robots.txt says, because a site can block at the edge while leaving robots.txt untouched, or the reverse.
What this does not check
It does not say whether ChatGPT, Claude or Perplexity mention your business, or whether your page is easy for an assistant to read and quote once it gets in. A page can be wide open to every crawler listed above and still never get cited. Citation depends on what the page says and how clearly it says it; access is only the first gate. The free scan and the AI Visibility Report measure that part.
Related reading
If you want the fuller picture of why a readable site still goes unmentioned, see is my website invisible to AI?, which explains the three checks behind visibility in general. This tool runs the live access check in real time; that guide explains what the measured numbers mean.
Questions about this check
What does this check actually do? It reads your robots.txt and looks for rules naming eight AI crawlers by name. Then it requests your home page once as an ordinary browser and once each as GPTBot, ClaudeBot and PerplexityBot, live, right now. You see whether robots.txt names each agent and whether your page let each one through.
What does this not check? It does not say whether ChatGPT, Claude or Perplexity actually mention your business, or whether your page is easy for an assistant to read and quote once it gets in. That is what the free scan and the paid AI Visibility Report measure.
What do I do if an agent is blocked? If robots.txt names the agent with a Disallow rule, edit or remove that rule. If an agent is open in robots.txt but still refused on the page itself, a bot-management rule or firewall is blocking it at the edge, and you need to allow that agent’s user agent string there instead.