Check Your Page's Heading Structure (H1-H6) Analyze H1-H6 heading hierarchy in HTML for proper SEO structure.

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Heading Structure Analyzer

Analyze H1-H6 heading hierarchy in HTML for proper SEO structure.

Paste your HTML

Enter the HTML content or paste heading tags from your page.

Analyze structure

The tool identifies all headings and checks for proper hierarchical nesting.

Fix issues

Address any warnings about skipped levels, missing H1, or duplicate headings.

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What Is Heading Structure Analyzer?

A Heading Structure Analyzer is a tool that examines the hierarchical structure of HTML heading tags (H1 through H6) on a webpage to ensure they are properly organized for optimal SEO. Developers and webmasters use it to identify issues with their page's heading structure, which can negatively impact search engine rankings and user experience. One specific problem it solves is detecting skipped heading levels, such as jumping from an H1 to an H3 without an intervening H2, which can confuse search engines and users.

The tool is designed to analyze the HTML code of a webpage and provide detailed feedback on its heading structure, including errors, warnings, and information about the total number of headings and their distribution by level. What makes this tool different is its ability to check for specific issues such as missing or multiple H1 tags, empty heading tags, and headings that are too long. It also provides a visual representation of the heading tree, making it easy to see the hierarchical structure of the page's content.

It checks the HTML code for proper heading hierarchy, ensuring that each heading level is used correctly and that there are no gaps in the hierarchy, which is essential for good heading hierarchy SEO. The tool's analysis includes an h1 h2 h3 checker, as well as a more general html heading analysis, making it a useful heading tag analyzer for anyone looking to improve their webpage's structure and search engine rankings.

Why Use Heading Structure Analyzer?

Detects missing H1, duplicate H1s, and skipped heading levels
Visual tree view of your heading hierarchy
Checks for SEO best practices in heading usage
Identifies headings that are too long or too short
Supports paste HTML or plain heading text input

Common Use Cases

Content Audits

Check heading structure across your site for SEO compliance.

Accessibility

Ensure headings follow proper hierarchy for screen readers.

Content Editing

Verify heading structure before publishing new content.

Technical SEO

Identify heading issues during technical site audits.

Technical Guide

Heading best practices: one H1 per page containing the primary keyword, H2s for main sections, H3s for subsections within H2s, and so on. Never skip levels (H1 → H3 without H2). Headings should be descriptive and include relevant keywords naturally. The H1 should be different from the title tag but thematically aligned. Average H1 length is 20-70 characters. Avoid using heading tags purely for visual styling — use CSS instead. Screen readers use heading hierarchy for navigation, making proper structure an accessibility requirement as well.

Tips & Best Practices

1
Use exactly one H1 per page — it should be your primary topic/keyword
2
Never skip heading levels (e.g., H1 → H3 without H2)
3
Include relevant keywords in H2 and H3 headings naturally
4
Keep headings descriptive and concise (under 70 characters)
5
Use H2s for main sections and H3s for subsections within them

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Frequently Asked Questions

Q How many H1 tags should a page have?

One. Each page should have a single H1 tag that represents the main topic. While HTML5 technically allows multiple H1s in sectioning elements, SEO best practice is one H1 per page.

Q Does heading structure affect rankings?

Headings help Google understand content structure and topic hierarchy. While not a direct ranking factor, proper heading structure improves content comprehension and can indirectly benefit SEO through better topical relevance.

Q Can I skip heading levels?

No. Skipping levels (e.g., H1 → H3) is bad for both SEO and accessibility. Always maintain sequential heading hierarchy.

About This Tool

Heading Structure Analyzer is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.