Heading validator

heading hierarchy validator · H1–H6 · WordPress

Waiting for input

The Heading validator checks the H1–H6 heading hierarchy inside your page content or WordPress template.

Paste HTML (or only headings as text) and get immediately: critical issues (missing or duplicate H1), warnings (level skips, empty headings, or too-long titles) and an exportable summary.

Paste HTML/text with headings and click Analyze

Issues found —
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Paste the code and click Analyze to see heading hierarchy issues
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errors
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warnings
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headings

How to use the Heading validator

  • Input: paste page/template HTML, or only the heading lines (e.g. # Title, ## Section).
  • Analyze: the tool extracts H1–H6 and validates semantic consistency.
  • Fix: follow the suggestions to correct the hierarchy.

Reference: W3C WAI - Page structure: headings.