Visualize the H1–H6 outline of a page and detect missing H1, skipped levels and multiple H1 issues.
Fetching live data…
The Heading Structure Analyzer visualizes the full H1–H6 outline of any live page and flags structural problems — a missing H1, multiple H1s, or skipped heading levels. Headings are how both readers and search engines understand a page's hierarchy, so getting them right matters. The tool fetches the page and renders its real heading tree from live data, turning a tangle of tags into a clear, indented outline you can scan in seconds.
https://example.com/page).Analyze a page and you might see one H1, four H2s and several H3s neatly nested — but a warning that one section jumps from H2 to H4, plus a note that a second H1 is hidden in the footer. Both are quick fixes that tidy the outline.
Yes — completely free, no signup and no limits. Analyze as many pages as you like with real, live data.
Modern HTML technically allows it, but for clarity and SEO it's safest to use a single H1 that states the page's main topic, then nest H2–H6 beneath it. Our heading hierarchy guide explains the best practice in detail.
Pair this with the Keyword Density Checker to see whether your topic terms appear in those headings, and the On-Page SEO Audit for an overall on-page score.
Guides, tips and tutorials hand-picked for this tool — go from running a check to actually fixing it.
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