Free tools
Free website and AI tools
Free tools to understand how your website is accessed, interpreted and discovered by machines. Every result shows the evidence behind it, so you can reproduce anything we tell you.
Free AI access checker
Check whether major AI crawlers can access your website
Enter a website address. We read its robots.txt, then request the page once as each crawler and report exactly what came back — which rule applied, what status the server returned, and how much of the page exists before JavaScript runs.
- GPTBot
- OAI-SearchBot
- ClaudeBot
- PerplexityBot
- Googlebot
- Bingbot
- Google-Extended
Free, and no account. Capped at 20 checks an hour so it stays polite to the sites being checked.
What these tools are for
Measurement, not advice dressed up as measurement.
Most free SEO tools give you a number out of a hundred. The number is assembled from checks you cannot see, weighted by rules nobody publishes, and it changes when the tool changes its mind. It feels like information and it is not.
The tools here report observations instead. An AI crawler checker can tell you, as a fact, that your robots.txt contains a rule disallowing GPTBot, and quote the rule. It can tell you your server returned HTTP 403 to a request carrying ClaudeBot’s user-agent. Both are things you can verify yourself in a minute, which is the only kind of claim worth making about somebody else’s website.
What no tool can tell you — ours included — is whether an AI assistant will mention your business. Technical access is a precondition, not a cause. Anyone selling you a percentage for it is guessing.
Why there is one tool here, not twenty
A meta tag checker, a canonical checker and a robots.txt checker are the same three lines of code split across three pages to catch three search terms. We would rather publish one tool that does something the others do not: request your page as each crawler and compare what they actually received. If a second tool earns its place, it will appear here. A page that exists to rank for a keyword rather than because someone needed it is the thing this site is built not to publish, which is set out on the about page.