Heading Structure Analyzer
Extract and audit the H1–H6 outline of any page for hierarchy and keyword usage.
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About this tool
Headings give both users and search engines the outline of your page. Fetch any URL (or paste HTML) to visualize the full H1–H6 tree, flag missing or duplicate H1s, skipped levels and empty headings, and review keyword usage across the outline.
How to use the Heading Structure Analyzer
- Enter a URL or paste raw HTML.
- Review the indented heading tree and warnings.
- Fix hierarchy issues: one H1, no skipped levels, descriptive text.
Frequently asked questions
How many H1 tags should a page have?
Exactly one H1 that states the main topic; use H2–H4 for structure.
Do headings affect rankings?
Yes — headings are a well-documented relevance signal and power featured snippets.