Free website checkers

Focused, single-purpose checks. Each one runs part of the full audit and explains how to fix what it finds.

Meta Tag Checker

Check the title tag, meta description, canonical, robots and viewport tags of any page in seconds. Free, no signup, with clear fixes.

Fetch and test your robots.txt: detect "Disallow: /", blocked pages and a missing Sitemap line. Free and instant.

Find your XML sitemap (robots.txt, /sitemap.xml, /sitemap_index.xml), validate its format and count its URLs. Free.

See the full H1–H6 outline of a page, find missing or multiple H1 and skipped heading levels. Free SEO and accessibility check.

Check og:title, og:description, og:image and Twitter card tags, and preview your social share card. Free, no signup.

List every image on a page with its alt text, size and format. Find missing alt attributes, oversized files and CLS risks. Free.

Scan a page and the pages it links to for broken links (404, 500), dead external links and redirect chains. Free online check.

Measure server response time, page weight, heavy images, compression and render-blocking scripts of any page. Free speed test with fixes.