Analyze webpage heading structure (H1-H6) for SEO and accessibility. Check heading hierarchy and identify issues.
Last updated: March 2026 | By Patchworkr Team
An HTML heading checker analyzes the heading structure (H1 through H6 tags) of a webpage to ensure proper hierarchy, SEO optimization, and accessibility compliance.
Headings create a document outline that helps search engines understand your content structure and assists screen reader users in navigating your page.
Best practice: Every page should have exactly one H1 tag (the main title), followed by H2 tags for major sections, H3 for subsections, and so on. Headings should not skip levels.
One H1, logical hierarchy, no skipped levels.
Multiple H1s, skipped levels, poor hierarchy.
Exactly one. The H1 should be the main title of the page. Multiple H1s can confuse search engines.
No. Don't jump from H2 to H4. Always maintain proper hierarchy (H1→H2→H3→H4).
Search engines use headings to understand content hierarchy and relevance. Proper structure improves rankings.
Most sites block cross-origin requests (CORS). Use 'Paste HTML' mode or a browser extension to get the page source.
Yes. Screen readers use headings for navigation. Proper structure helps users jump to sections.
No. Heading tags are for structure, not styling. Use CSS to control appearance.
Yes! You can have multiple H2s for different major sections. Just keep one H1.
They're deeper nesting levels. Most sites rarely need beyond H3 or H4.