Free tool
Performance / Core-Web-Vitals-lite
Fast pages rank and get cited more. This tool measures time-to-first-byte, HTML size, and the real bytes of a sample of your images and CSS — using pure server-side timing (no headless browser, no cost).
Related tools
Crawlability / Technical SEO
Check canonicals, meta robots, redirects and hreflang.
HTTP Header / Security Checker
Check HSTS, CSP, HTTPS redirect and cookie flags.
Sitemap Checker
Count URLs, find broken links and check lastmod coverage.
AI Visibility Audit
Score how well AI engines can find, read and cite your site.
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