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Heading Structure Checker

Review an HTML, Markdown, or plain-text outline to see how the heading structure is organized. This checker highlights missing H1 headings, multiple H1 headings, level skips, and other outline issues with deterministic local parsing.

SEO workspaceRisk: safesync processingPrivate retention windows

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Tool Workspace

Analyzer Template

Input-based analysis surface that returns structured findings and actionable summaries.

Input flow: analysis-reportResult view: structured-seo-suggestionsSchema: object

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Result

Add page content to inspect the heading structure.

Popular use cases

  • Analyze a blog outline in Markdown before publishing the article.

What to expect

Does this infer headings from normal prose?

No. Plain-text mode only recognizes lines that begin with H1 through H6 prefixes.

Which formats are supported?

Auto-detection supports HTML headings, Markdown hash headings, and explicit plain-text H1 to H6 prefixes.

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Access and usage

Privacy and trust