41 free tools
Single checks from the full report, plus tools others charge for. No account. Browser tools run on your computer and never upload your files. 41 are live today; the rest are marked “Soon”.
Start with
Speed
9- Website speed testMobile and desktop, lab + field
- Core Web Vitals checkerReal-user LCP, INP and CLS
- Core Web Vitals history40 weeks for any site
- TTFB testServer response time
- Image size checkerOversized images and old formats
- HTTP/2 & HTTP/3 testProtocol and compression
- Competitor speed comparisonNewUp to 5 sites side by side
- Bulk PageSpeed checkerNewUp to 50 URLs
- Unused CSS/JS checkerNewCode you ship but don't use
SEO & crawling
17- SEO audit40+ on-page checks
- AI crawler checkGPTBot, ClaudeBot, llms.txt
- Broken link checkerUp to 150 links per page
- Schema validatorJSON-LD and rich results
- Link preview checkerHow your links look on social
- robots.txt testerTest URLs against your rules
- Redirect checkerEvery hop, status and time
- Canonical checkerSelf, cross-domain and chains
- Hreflang checkerIncluding return links
- Sitemap validatorFormat and status of every URL
- llms.txt generatorBuilt from your sitemap
- Bulk URL checker1,000 URLs at once
- Migration redirect validatorOld URLs to new URLs
- XML sitemap generatorSoonUp to 500 pages
- Page change monitorSoonAlerts when a page changes
- JS rendering checkNewWhat Google actually renders
Security, privacy & accessibility
7- Security headers checkerHSTS, CSP, cookie flags
- SSL / TLS checkerCertificate, chain and protocols
- Accessibility checkerWCAG issues by severity
- Email & DNS healthSPF, DKIM, DMARC, MX
- Tech stack & vulnerabilitiesNewCMS, plugins, known CVEs
- Responsive check + CSP generatorNew5 screen sizes, CSP from real loads
Browser tools · Run on your computer. Files are never uploaded.
5WordPress
5Want all of them at once?
The full report runs the speed, SEO, security, accessibility, schema and social checks together.