SEO Tools

Header Tag Hierarchy Checker

Paste a page's HTML to check its heading tag hierarchy for common on-page SEO issues.

H1Title
H2Section
H4Sub
H1Another
  • Multiple H1 tags found (2).
  • Skipped heading level: H2 to H4.

Checks for the classic on-page SEO heading issues: missing or duplicate H1s, and skipped heading levels (like jumping from H2 straight to H4) that can confuse both readers and search engines.

How to use this tool

  1. 1Paste the page's HTML.
  2. 2See the extracted heading outline.
  3. 3Review any flagged hierarchy issues.

Frequently asked questions

Why does heading hierarchy matter for SEO?+

A clear, logical heading structure helps search engines understand your content's outline and helps screen-reader users navigate the page.

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