Enter a website or article URL to explore its heading hierarchy. Find missing H1s, skipped levels, and repeated headings. See practical fixes and target phrase placement in one visual dashboard.
See the complete outline
Explore H1 to H6 in page order.
Find clear next steps
Review issues beside affected headings.
Check topic placement
See where your target phrase appears.
Step-by-step
Six steps from entering a URL to reviewing a clear heading outline.
Enter a public page address and select Analyze headings. For unpublished drafts, use Paste content with HTML or Markdown.
Leave "Analyze main content only" on to check just the article or <main> area, so navigation, footer, and sidebar headings don't distract you. Turn it off to audit the entire page.
The tool lists every heading in order, indented by level, with a count per level. It should read like a clean table of contents: one main topic, then sections, then sub-points.
Enter the topic you want the page to cover. The tool shows whether it appears in the H1 and how many headings use it, and warns if it is repeated in most of them.
Errors are things like a missing H1 or empty headings. Warnings include skipped levels, repeated or generic headings, and hidden headings. Each issue lists the exact headings affected.
Copy the outline as Markdown or download the CSV report to share with a writer or developer. After editing, check the page again. URL reports may reuse results for up to five minutes.
Learn the method
Heading tags (H1 to H6) are the outline of a page. A good structure has one main heading that states the topic, followed by section headings that break the content into clear parts, with sub-headings nested in order beneath them. It is one of the simplest ways to make a page easier to read, easier to navigate with assistive technology, and easier for search engines to interpret.
| Level | Role | Typical use |
|---|---|---|
| H1 | The page's main topic | Usually one per page, first in the content |
| H2 | A main section of the page | Several per page, each covering a distinct topic |
| H3 | A sub-point inside an H2 section | Only used under an H2 |
| H4–H6 | Further detail inside an H3 (and so on) | Rarely needed on short pages |
One H1, then H2 sections, with H3s only inside the H2 they belong to. Each heading names its own topic.
<h1>How to write a meta description</h1>
<h2>What a meta description does</h2>
<h2>How long it should be</h2>
<h3>On desktop</h3>
<h3>On mobile</h3>
<h2>Examples you can adapt</h2>Start from what each section actually answers, then use the wording searchers use where it fits. Search engines can handle more than one H1, so the single-H1 advice here is about clarity, not a penalty. If your research shows people ask a question, phrasing a heading as that question can help the section stand alone. Avoid stuffing the same phrase into every heading. Check for over-repetition with the Keyword Density and Repetition Checker.
Some websites add content after JavaScript runs. A URL check reads the returned HTML, which can contain fewer headings than your browser shows. Open the page, choose Inspect, and copy the main element using Copy outerHTML. Analyze that in Paste content. Password protection and website access rules can also prevent a URL check.
The structure score summarizes six checks, with the full breakdown available in your report. A high score confirms those checks passed. It does not prove complete topic coverage or guarantee rankings. Review whether each heading accurately describes its section before changing any tags.
Read W3C guidance on heading structureNeed a stronger main heading? Try the H1 Heading Generator. Planning a new structure from scratch? Use the Article Outline Generator or the SEO Content Brief Generator. Once the outline is sound, check how easy the text is to read with the Readability Checker and how answer-ready it is with the AI Citation Readiness Checker.
Browse all toolsCommon questions
Search engines and browsers can handle more than one H1, so it isn't a penalty. A single, clear H1 is still the simplest way to state a page's topic and keep the outline easy to follow, which is why this tool flags multiple H1s as a warning rather than an error.
It's a jump of more than one level when going deeper, such as an H2 followed directly by an H4. It breaks the outline for people who navigate by headings. Going back up, for example from H4 to H2, is fine.
Yes. Enter a public webpage URL to check headings in its returned HTML. If headings appear only after JavaScript runs, open Inspect in your browser. Copy the outer HTML of the main element into Paste content to check those headings too.
URL checks send the entered address to our server to retrieve the public page. Pasted HTML and Markdown are analyzed in your browser. Pasted scripts are never executed.
Headings that are hidden (with the hidden attribute, aria-hidden, or inline display:none) are flagged and left out of the other checks. With "main content only" on, headings in navigation, footers, and sidebars are left out too.
The dashboard includes a transparent structure score based on six checks. It is not a Google score or ranking prediction. Keyword placement is separate, and the tool cannot judge search intent or topic completeness.