Heading & Chunk Structure Checker
AI answer engines pull individual sections, not whole pages. If your headings skip levels or a section runs on for 400 words with no sub-heading, there is nothing clean for a model to extract. Paste your content and see where the structure breaks down.
Why heading structure matters for AI answers
When ChatGPT, Perplexity, or Google’s AI Overviews pull a passage from your page, they are not reading the whole thing top to bottom. They are grabbing the section that answers the query, usually the text sitting under one specific heading. A clean, logically nested heading structure gives them a natural unit to lift. A page that jumps from H1 straight to H4, or buries three separate ideas under one heading with no break, gives them nothing tidy to work with.
This tool reads your headings in order, checks the hierarchy for skipped levels and duplicate H1s, and measures how much text sits under each one. Paste your page’s HTML source for the most accurate read, or use plain text with markdown-style hashes if that is easier.
Paste your content above and click Check structure to see the heading hierarchy and chunk sizes here.
How we calculate this
Hierarchy check: we flag pages with zero H1 tags, more than one H1, or a heading level that skips a step (an H2 followed directly by an H4, for example). AI parsers and screen readers both use heading levels to understand document structure, skipping a level breaks that signal even if the page looks fine visually.
Chunk size: for each heading we count the words in the text that follows it, up to the next heading of any level. Under 40 words is flagged as thin, likely not enough standalone context for an answer engine to quote confidently. Over 600 words is flagged as long, probably covering more than one idea and a candidate for a sub-heading split. These thresholds are a practical heuristic based on how answer engines tend to extract passages, not a published standard from any AI vendor.
Input formats: if your pasted content contains real heading tags (<h1> through <h6>), we parse it as HTML. Otherwise we look for markdown-style lines starting with one to six # characters.
Heuristic analysis only, not a certified accessibility or SEO audit. Word-count thresholds are our own estimate, calibrate them against your own content if your format runs differently.