Heading structure checker

What is a Heading Structure Checker?

The Heading Structure Checker extracts every H1 through H6 heading from a webpage and groups them so you can review the outline of the page at a glance, the same way a screen reader or search engine parses document structure.

Why Heading Structure Matters

• Accessibility — Screen reader users often navigate by jumping between headings; a logical, non-skipping structure (H1 → H2 → H3) is essential for usability.
• SEO — Search engines use headings to understand the topical structure of a page and identify its main subject (H1) and subtopics.
• Multiple H1s — Having zero or multiple H1 tags is a common on-page SEO issue this tool makes easy to spot.