How to use the Heading Structure Checker
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What Is the Heading Structure Checker?
Search engines use heading hierarchy (H1-H6) to understand the structure and topics of your page. The Heading Structure Checker analyzes your HTML to ensure your headings follow a logical order, catch skipped levels, and verify you have exactly one H1.
Proper heading structure improves both SEO and accessibility.
How It Works
Paste your HTML content. The tool extracts all heading tags, checks for a single H1, verifies no heading levels are skipped (e.g., jumping from H2 to H4), and displays a visual hierarchy of your heading structure.
Useful for
- Auditing page structure before publishing
- Catching accessibility issues in heading hierarchy
- Ensuring consistent heading patterns across a website
- Training content teams on proper heading usage
Who should use it
- SEO auditors reviewing website structure
- Content editors checking article formatting
- Web developers validating page templates
- Accessibility specialists auditing heading hierarchy
Common mistakes to avoid
- Using headings for visual styling instead of semantic structure
- Skipping heading levels for aesthetic reasons
- Having multiple H1 tags on a single page
When not to use it
- For single-page apps where headings are managed programmatically
- When checking content in a CMS that enforces heading rules automatically
Frequently asked questions
How many H1 tags should a page have?
One. Your H1 should be the primary topic of the page. Multiple H1s can confuse search engines about the page's main subject.
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