The free SEO checker

One page of the address you give, plus that site’s robots.txt and llms.txt. It reports the page score and the fixes, AI readiness, how fast the server answered, what the page is built with, and which third-party services it loads. Nothing else on the site is crawled.

Each address can run 8 scans an hour. Only public websites can be scanned: private and internal addresses are refused, and so are addresses with credentials in them. The same page scanned again within ten minutes reuses the first reading, so a site is never asked twice in a row.

Every scan gets its own address. Anyone who has the link can open it; it is not listed anywhere and search engines are told not to index it. Results are kept for 90 days. If you are signed in, your recent scans are listed under the checker.