H1–H6 Heading Structure Analyzer
A correct heading hierarchy is the foundation of a page's SEO structure. Search engines use H-tags to understand the topic and content outline. The analyzer instantly builds the heading tree and highlights problem areas.
Frequently asked questions
Why does a correct heading hierarchy matter?
Search engine crawlers read H1–H6 tags to understand the topic and structure of a page. Skipping levels (e.g. H1 → H3 without an H2) signals markup issues. There should be exactly one H1 — it is the document-level equivalent of the `<title>` tag.
Should the H1 match the page title tag?
They don't need to match word-for-word, but the H1 and title should be semantically close. The title tag primarily affects CTR in search results, while H1 defines the on-page content structure. It is perfectly acceptable to make the H1 slightly longer or differently phrased.
How do I get the page HTML for analysis?
Open the page in a browser and press Ctrl+U (Cmd+U on Mac) to view the page source. Copy the full source or just the content section. You can also paste a partial HTML fragment — the tool will find all H-tags within it.
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