Free Heading Analyzer
Headings are your page's table of contents for both readers and Google. NToolHub's free Heading Analyzer parses your HTML and maps the full H1–H6 outline — flagging missing H1s, duplicate H1s, skipped levels and empty headings. Content editors and SEOs use it to audit pages before publishing.
How to Use the Heading Analyzer
- Paste the full HTML source of the page you want to check.
- Click Analyze to see the heading outline and per-level counts.
- Fix any flagged issues: missing H1, multiple H1s or skipped levels.
- Re-run the check after editing to confirm a clean hierarchy.
Features
Paste any page's HTML for an indented visual outline, per-level counts (H1–H6), and automated issue detection: multiple H1s, skipped hierarchy levels, empty headings and headings appearing before the H1. Everything is analyzed locally with the DOMParser API.
Benefits & Use Cases
A clean heading hierarchy helps Google understand content structure and topical depth, powers sitelinks and featured snippets, and makes pages dramatically easier to skim — which keeps readers on the page longer.
Tips
Use exactly one H1 matching the page's main topic, nest headings sequentially without skipping levels, and write headings as descriptive mini-headlines containing relevant keywords — never use headings just for styling.
Frequently Asked Questions
How many H1 tags should a page have?
Exactly one. The H1 should describe the page's main topic, similar to the title tag. Multiple H1s dilute topical focus.
Does skipping heading levels hurt SEO?
It confuses the document outline for assistive tech and crawlers. Going from H2 straight to H4 is sloppy structure — nest sequentially.
Should headings contain keywords?
Yes, naturally. Headings are strong topical signals, so include relevant terms — but write for humans first, not keyword lists.
Can I use headings for styling text?
No. Use CSS for visual styling. Misusing H-tags for big text creates a false document outline that harms accessibility and SEO.
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