Why should I check my heading structure?

H1–H6 headings act like a table of contents for a page, and they are a key signal search engines and AI answer engines (AEO) use to understand how your content is organized. A logical heading hierarchy makes your content easier to interpret correctly. This tool fetches the URL you enter and surfaces the heading outline plus any structural problems.

Can a page have multiple H1 elements?

HTML5 technically allows more than one H1, but for SEO and AEO a single H1 that describes the page's main topic is recommended. Multiple H1s can make the page's subject ambiguous, so this tool flags pages that have zero or two-or-more H1s.

What's wrong with skipping heading levels?

Jumping from an H2 straight to an H4 (skipping H3) breaks the hierarchy and can prevent screen readers, search engines, and AI from interpreting the outline correctly. Headings should descend one level at a time. This tool detects skips such as H2 → H4 and points them out.

Do headings matter for AEO (answer engine optimization)?

Yes. When an AI answers a question, it uses a page's heading structure to locate the relevant section. Question-style headings and a logical hierarchy make it easier for AI to quote and summarize your content, so organizing headings is a core part of AEO.

Is the URL I enter sent to a server?

Yes. This tool fetches the URL you enter through our server and extracts the headings from the returned HTML in your browser. Only the URL you enter is fetched; nothing else is stored.

Yes, it is completely free. No sign-up and no installation required.

Heading outline extractor

AI SEO tools

Extract the H1–H6 outline of any page and catch a missing H1, multiple H1s, or skipped levels. The URL you enter is fetched by our server to read its headings.

What is this heading outline extractor?

A free tool that extracts the H1–H6 heading outline of any page. Enter a URL and it fetches the page server-side, then reads every heading in document order in your browser and renders an indented outline — the page's de facto table of contents. It also flags the structural problems that hurt SEO and AEO: a missing H1, multiple H1s, and skipped levels such as H2 jumping to H4. The URL you enter is fetched by our server; only that URL is requested.

How to use it

Paste the URL whose heading structure you want to check.
Press “Extract outline” — the page is fetched server-side and its headings are parsed.
Review the indented H1–H6 outline, the per-level counts, and any flagged issues.

Common use cases

Auditing whether a page has exactly one H1 and a logical heading hierarchy.
Finding skipped heading levels (H2 → H4) before they hurt accessibility and SEO.
Structuring content for AEO so AI answer engines can quote the right section.

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FAQ

Operated by

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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