Heading Health Check

Instantly audit any page’s heading structure. Paste a URL, hit Enter, and get a readable outline with warnings for extra H1s, hierarchy jumps, duplicates, and headings that are too short or too long.

Tip: You can type just a domain (e.g. example.com) — we’ll assume https://. Press Enter to run.

Results

Why headings matter

Accessibility: Screen readers rely on a clear H1 → H2 → H3 flow.
SEO & AI: Search engines (and AI overviews) use headings to understand topics and intent.
Scannability: Better headings = better readability and higher engagement.

What this tool checks

Exactly one H1 per page — extra H1s are flagged.
Logical order & hierarchy — no H3 after H1, no big level drops, etc.
Duplicate headings — repeated text across levels is highlighted.
Length guidance — H1 ideally 20–70 characters; H2–H6 ideally 10–70.

How to use it

Paste a full URL or just a domain (e.g. example.com) — we’ll assume https://.
Press Enter or click Check Headings.
Review the outline and download JSON or CSV for your notes.

How to read the badges

OK — looks good.
length — consider tightening or expanding the text.
duplicate — the same heading appears more than once.
hierarchy jump / order jump — the level skips or drops aren’t logical.
extra H1 — more than one H1 on the page (fix this first).

Best-practice tips

Keep one clear H1 that matches the page’s main intent.
Make headings descriptive, not clickbait; avoid keyword stuffing.
Move in sequence (H1 → H2 → H3); don’t skip levels.
Keep headings concise; aim for one idea per heading.
Don’t style body text to “look like” a heading — use real <h*> tags.

Notes & limitations

This tool fetches the server-rendered HTML. If a site injects headings via heavy JavaScript after load, they may not appear in the results. Nothing is permanently stored; requests are proxied securely through our site for CORS compatibility.