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H1 tag SEO: how to structure headings for Google and AI search

Use one visible H1 that states what the page is about and matches its title, then descriptive H2 and H3 sections that answer real sub-questions. Google lists H1 headings among the sources it uses for title links, and its 2026 AI guide recommends clear sections and headings. Semantic heading markup is recommended, not required.

The rule: Organize pages with one clear H1 and descriptive H2/H3 sections that match real questions

Impact Evidence Applies to Last checked
Medium Official guidance Google, Bing, ChatGPT, Perplexity, Claude Oct 30, 2026

Why it matters

Google's 2026 AI guide recommends clear paragraphs, sections and headings for readers, and lists headings as a title link source. Bing's grounding guidance favors pages focused on one topic with key information near the top. Headings help retrieval systems find the passage that answers a sub-question. Semantic HTML is recommended, not required.

How to do it

  1. Use a single visible H1 that matches the page title
  2. Write H2s as the questions or tasks the section resolves
  3. Keep one main topic per URL and split pages that cover several

Example

Title, H1 and question-led H2s
<title>Soft 404 Errors: Causes and Fixes | Example</title>

<h1>Soft 404 errors: causes and fixes</h1>
<h2>What is a soft 404?</h2>
<h2>How do I fix a soft 404?</h2>
<h3>Fixing soft 404s in single-page apps</h3>

Questions

Does the H1 tag matter for SEO?

Yes, as a clarity signal. Google uses heading elements such as the H1 as one source when it builds title links, and headings help retrieval systems find the passage that answers a sub-question. It is not a magic ranking switch.

Should the H1 be the same as the title tag?

They should say the same thing in slightly different words. Google draws title links from both the title element and the main visible heading, so the two should agree on what the page is about.

Can a page have multiple H1 tags?

Google's guidance does not describe a penalty for it, and semantic HTML is recommended rather than required. Use a single visible H1 anyway, so readers and engines see one unambiguous topic for the page.

How should I write H2 headings for SEO?

Write each H2 as the question or task the section resolves, and keep one main topic per URL. Bing's 2026 guidelines favor pages focused on a single topic with key information near the top, so split pages that cover several.

Sources

Change history

Date Change What changed
Oct 30, 2026 Added Added to the rulebook.

Checked against its sources every Monday. Only content changes are listed.

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