Meta & On-Page SEO
Heading Structure Analyzer
Visualize your H1-H6 heading hierarchy and find structural issues.
Paste HTML to analyze headings
What is the Heading Structure Analyzer?
Visualize H1-H6 heading hierarchy, find structural issues, and ensure proper heading tag order.
The Heading Structure Analyzer parses your HTML headings (H1-H6) and displays them as an indented hierarchy tree. It flags common structural issues: missing H1, multiple H1s, skipped heading levels (H2 directly to H4), and improper nesting. Correct heading structure is crucial for both accessibility (screen readers) and SEO (search engines use headings to understand content hierarchy and topic relevance).

Key Benefits
SEO Compliance
Ensure heading structure follows Google's best practices.
Accessibility
Proper heading hierarchy is essential for screen reader navigation.
Visual Hierarchy
See your heading tree at a glance to spot structural issues.
Content Outline
Use as a content planning tool to structure articles before writing.
How to Use This Tool
Paste your HTML content or heading tags into the analyzer
Review the visual heading hierarchy tree
Check for issues: missing H1, multiple H1s, skipped levels
Fix heading structure in your CMS or code
Re-analyze to confirm proper hierarchy
Common Use Cases
- SEO auditors checking heading structure on client pages
- Content writers outlining articles with proper heading hierarchy
- Accessibility testers validating WCAG heading requirements
- Web developers debugging heading tag issues
- Content editors reviewing article structure before publishing
Pro Tips
- Every page should have exactly one H1 - it's your main topic signal
- Never skip heading levels: H2 → H3 → H4, not H2 → H4
- Use H2s for main sections and H3s for subsections within each H2
- Heading tags should describe content, not be used for styling
Who Uses This Tool
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Try itFrequently Asked Questions
What is the Heading Structure Analyzer?+
The Heading Structure Analyzer is a free online tool that helps you visualize your h1-h6 heading hierarchy and find structural issues. No signup or download required.
Is the Heading Structure Analyzer free?+
Yes, completely free with unlimited usage. No account needed.
How accurate is this tool?+
Our Heading Structure Analyzer uses industry-standard algorithms and best practices to deliver reliable results for SEO professionals and marketers.
Can I use this tool on mobile?+
Yes, the Heading Structure Analyzer is fully responsive and works on all devices including smartphones, tablets, and desktops.
Do you store my data?+
No. All processing happens in your browser. We never store, transmit, or share any content you input into our tools.
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