SEO CheckT3 · Website
Free SEO Checker — Instant On-Page SEO Report
Scan any page for title, meta, headings, schema, links and 30+ on-page SEO checks.
- 100% free
- No sign-up
- Live data from our servers
How it works
How to use SEO CheckT3
- 1
Enter the full address of the page you want to check (the homepage or any inner page).
- 2
Wait a few seconds while we fetch the page and its robots.txt and sitemap.
- 3
Work through the failed and warning checks first; each one says what to fix.
About
About this tool
SEO CheckT3 fetches your page the way a search engine does and runs more than 30 on-page checks: title tag length, meta description, a single clear H1, canonical tag, structured data, image alt text, internal links, robots.txt, XML sitemap, HTTPS, mixed content and more. Each check gets a pass, warning or fail with a plain-English explanation of why it matters.
The on-page score weights the checks by how much they typically affect rankings, so a missing title or a stray noindex costs far more than a missing favicon. Use it before you publish a new page, after a redesign, or to see why a competitor's page is easier for Google to understand.
On-page SEO is only part of the picture. Speed and Core Web Vitals come from Google Lighthouse, which our full website audit runs alongside these checks for mobile and desktop. Fix the failed checks first, re-run the scan, and you'll see the score move as each issue is resolved.
Frequently asked questions
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