AnalysisBeginner
Heading Hierarchy Checker
Find broken heading sequences, duplicate H1s, and skipped levels — the audits most SEO tools miss.
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Fetch from URL
A URL on another site is fetched through SEOKit24’s own relay on this domain — no outside server sees your address. Pasted HTML never leaves your browser.
Paste HTML above and click Analyze
What this tool checks
The heading hierarchy audit runs five checks on any HTML document or live URL:
- Single H1 — exactly one
<h1>per page is the HTML spec requirement and what Google expects. Multiple H1s dilute the topic signal. - Heading sequence — levels should step down consecutively (H1 → H2 → H3). Skipping H2 and jumping to H3 breaks the document outline that screen readers build.
- Section headings — at least two H2+ headings make a page scannable. Single-heading pages are hard to navigate.
- Empty headings —
<h2></h2>passes the validator but tells screen readers nothing. Every heading needs text. - Duplicate heading text — same-level headings with identical text confuse both users and crawlers. Each should be unique.
All analysis runs in your browser. Pasted HTML never reaches a server, and a live URL is read through our own relay on this domain, which keeps nothing.