Free tool · SEO
Heading Structure Analyzer
Paste a page's HTML — or give us a URL and we fetch it — and see its H1–H6 outline, with the level jumps called out.
Paste mode is offline: nothing is uploaded and nothing is fetched. Right-click a page, choose View Page Source or Inspect, and paste what you get. A fragment is fine — only heading tags are read.
Paste some HTML above and the outline appears here.
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See what AI engines already know about the site you're on, and test whether AI crawlers can actually reach it.