Heading hierarchy is how screen readers, Googlebot, and AI engines build a structural map of your page. Skip a level and the map breaks.
What it does
Fetches a URL, builds the heading outline (H1 → H6), flags missing H1, multiple H1s, skipped levels (H2 → H4), and headings without text. Outputs a paste-ready table-of-contents block.
How to use it
- Open /tools/headings-outline/ in your browser.
- Enter the URL or domain you want to audit (or paste the inputs the tool requests for that specific check).
- Run the audit and review the per-check results inline.
- Copy the AI fix prompt from the bottom of the results and paste it into Claude / ChatGPT / Codex — the tool generates a domain-aware prompt that names every issue found.
- Apply the fixes to your source tree and re-run to confirm.
Why this exists
Most professional tools in this category cost $99 to $499 per month, lock results behind logins, or run on slow Chrome backends. The jwatte.com tool suite is built on three principles:
- Free + ungated — no signup, no quota
- Transparent — every check explains what it measures and how
- AI-augmented — every output produces a prompt that turns the audit into a fix in one paste
Companion tools
This tool pairs with the rest of the jwatte.com tools hub. For audits at scale, queue it inside Mega Batch. For deep single-page review, run it alongside Mega Analyzer.
Reference
- /tools/headings-outline/ — live tool
- /tools/ — full tool hub (60+ free tools)
- /about/ — about the author + the framework behind these tools