Free tools

Free website tools

Three live checks, each answering one question about your site right now. No email, no account, and nothing about the address you check is kept.

Can ChatGPT, Claude and Perplexity read your site?

Reads your robots.txt for eight named AI crawlers, then requests your home page once as a browser and once each as GPTBot, ClaudeBot and Perplexity­Bot, live, right now.

Check AI crawler access

Does your site publish an llms.txt file?

Requests /llms.txt at your root, checks it against the published layout, counts its links and tests the first five, and checks whether /llms-full.txt also exists.

Check your llms.txt

What security headers does your site send?

Requests your home page over https and reports which of six security headers it sends, with the value of each. No score, no letter grade.

Check your security headers

Want one score covering structure, speed, accessibility and trust signals together? Run the free scan instead.