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H1–H6 Structure & Readability Audit

HTML Headings Checker

Audit any page's H1–H6 heading hierarchy, detect structural issues, and calculate Flesch–Kincaid readability scores with actionable improvement suggestions.

💡 Works on any publicly accessible page — blog posts, landing pages, homepages

Tool created by iNet Ventures

Why Heading Structure Matters for SEO

Heading tags (H1–H6) are one of the most important on-page SEO signals. They tell search engines what your content is about, how it's structured, and which topics are most important. A well-organised heading hierarchy makes content easier for both users and crawlers to understand.

Common heading mistakes — like missing H1 tags, multiple H1s, or skipped heading levels — can directly impact how Google interprets and ranks your page. This tool catches these issues automatically.

Combined with our readability scoring, you get a complete content quality audit: structure (headings) + clarity (Flesch–Kincaid) in one tool.

Heading Best Practices Checklist

✅Use exactly one H1 per page, containing your primary keyword.
✅H2 tags should define major sections — aim for 3–8 H2s on a long-form article.
✅Never skip heading levels (e.g., H2 → H4). Always descend sequentially.
✅Keep headings under 70 characters for search snippet visibility.
✅Make headings descriptive — they should stand alone and make sense out of context.
✅Include secondary keywords naturally in H2 and H3 tags.
❌Don't use headings purely for styling — use CSS classes instead.
❌Don't keyword-stuff headings — use natural language.
❌Don't end headings with periods, commas, or semicolons.
❌Don't use all-caps headings — they hurt readability and accessibility.

Complete Your Content Audit

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Content Brief Generator

Plan content structure before writing

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Meta Tag Generator

Optimise title tags and meta descriptions

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Word Counter

Count words, sentences, and reading time

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Schema Markup Generator

Add structured data to your pages

Need Content That Ranks?

Our blogger outreach service places your content on real DR10–80+ editorial sites — ensuring your link profile is as strong as your on-page SEO.

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Frequently Asked Questions

Everything you need to know about heading structure and readability