Free website checkers
One focused check per page — run it on any domain in seconds, no signup.
Each checker below runs against the live page and reports only the signals for that one question, with the evidence behind the verdict. Every check is also measured across our whole corpus, so you can see how common the problem actually is.
- AI search visibility checkerCheck whether a page is structured to be read and cited by AI answer engines — ChatGPT, Perplexity, Google AI Overviews. Free, instant, no signup.61% score under 50 on AI visibility
- Structured data checkerCheck which schema.org types a page publishes as JSON-LD — Organization, FAQPage, Product, Breadcrumb and more. Free, instant, no signup.43% publish no structured data at all
- Meta tag checker and previewSee the exact title, meta description, Open Graph and canonical tags a page serves — with length measured the way search results actually cut them off.19% are missing a title or meta description
- Website speed testMeasure server response time (TTFB), HTML weight, compression, caching and render-blocking resources for any website. Instant, no signup.11% score below 55 on speed
- robots.txt checkerCheck whether a website has a robots.txt file, whether search engines can read it, and whether it declares a sitemap. Free, instant, no signup.13% have no reachable robots.txt
- sitemap.xml checkerCheck whether a site has a reachable sitemap.xml, whether robots.txt points to it, and whether the homepage sets a canonical URL. Free and instant.19% have no reachable sitemap.xml
- HSTS and security header checkerCheck whether a site sends Strict-Transport-Security, redirects HTTP to HTTPS, and sets CSP, nosniff, clickjacking and referrer protections. Free and instant.35% send no HSTS header