Heading Structure Checker
Visualize the H1-H6 heading hierarchy from your HTML. Spot missing headings, skipped levels & multiple H1 issues instantly.
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💡 Why Headings Matter
SEO & Accessibility
- Headings create a content outline that search engines use to understand page structure.
- Screen readers rely on heading hierarchy for navigation.
- Proper H1 → H2 → H3 flow improves both SEO and user experience.
- Every page should have exactly one H1 tag.
📖 Best Practices
Heading Rules
- Use exactly ONE H1 per page — it should match the page's main topic.
- Don't skip heading levels (e.g., H1 → H3 without H2).
- Use headings for structure, not just styling — use CSS for font sizes.
- Include target keywords in H1 and H2 tags naturally.
🎯 Common Issues
What to Fix
- No H1: Every page needs a primary heading.
- Multiple H1s: Only one H1 per page is recommended.
- Skipped levels: Don't jump from H1 to H3 — use H2 first.
- Empty headings: Remove or fill headings with no text content.
Frequently Asked Questions
Does heading structure affect SEO rankings?▾
While heading tags are not a major ranking factor, they help search engines understand your content structure and topic hierarchy. Well-structured headings can improve featured snippet eligibility and help Google identify the main topics on your page.
Can I use multiple H1 tags with HTML5?▾
HTML5 technically allows multiple H1 tags within different sectioning elements, but Google has confirmed they recommend a single H1 per page for clarity. Using one H1 is the safest approach for both SEO and accessibility.