Heading Tags and SEO: What Google Says About H1–H6

Heading tags (<h1> to <h6>) mark the titles of a page’s sections. For Google Search they are a helpful signal about what each part of a page covers, but Google says there is no ideal number of headings and that using them out of order doesn’t matter for Search. Correct nesting matters far more to the people who use screen readers.

What are heading tags, and what do they do?

HTML has six heading levels. <h1> is the highest and usually holds the page’s main title; <h2> marks the main sections; <h3> to <h6> mark subsections inside them. Together they form an outline of the page, much like a table of contents.

That outline does three jobs. It helps readers scan, it lets assistive technology users jump between sections, and it gives search engines clues about which part of the page covers which topic. Google’s SEO Starter Guide puts the user benefit first: “Break up long content into paragraphs and sections, and provide headings to help users navigate your pages.”

Headings are not the same as the <title> element. The title lives in the page’s <head> and is Google’s main source for the clickable headline in search results; the <h1> is the visible title on the page. We cover the title element in detail in our guide to title tags and meta descriptions.

What does Google say about headings?

Google’s current documentation is short and consistent. Headings help, but the rules SEO checklists often enforce, such as exactly one <h1> or strict heading order, are not requirements for Search.

Google source	Last updated	What it says about headings
SEO Starter Guide	Dec 10, 2025	“Having your headings in semantic order is fantastic for screen readers, but from Google Search perspective, it doesn’t matter if you’re using them out of order.” There is “no magical, ideal amount of headings”.
Title links documentation	Dec 10, 2025	Sources for title links include “Heading elements, such as <h1> elements”. Best practice: put the title text in the first visible <h1>. With several large, prominent headings, Google “may use the first heading”.
Creating helpful content	Oct 5, 2026	Asks whether “the main heading or page title” gives “a descriptive, helpful summary of the content” and avoids exaggerating or being shocking. Lists page titles and headings as part of a page’s main content.
Search Quality Rater Guidelines	Sept 11, 2025	Treats the page title as part of the main content; “exaggerated or shocking titles are evidence of Low quality”. Rater data is not used directly in ranking.

Google’s John Mueller has said the same thing in public many times. In a 2019 Webmaster Central hangout, reported by Search Engine Roundtable, he said: “You can use h1 tags as often as you want on a page. There’s no limit.” In an October 2019 video covered by Search Engine Land: “Our systems don’t have a problem when it comes to multiple H1 headings on a page.” In 2020, as reported by Search Engine Journal, he described a heading as “a really strong signal telling us this part of the page is about this topic”, while the exact level (H1, H2 or H5) “doesn’t matter so much”.

His most practical comment came in a September 2024 Reddit thread, covered by Search Engine Journal: correct heading order “helps search engines lightly” and is good for accessibility, but “if you have an existing site, fixing this isn’t going to change your site’s rankings.” These are reported quotes from forums and videos, not formal documentation, but they match what Google’s documentation says.

How common are heading problems?

Heading use has levelled off across the web. The HTTP Archive Web Almanac 2025, which analyses millions of pages, found that about 70% of pages include an <h1>, but only 66% have one that actually contains text. The authors describe this as a “ceiling effect”: adoption has “clearly leveled off”. In the 2024 edition, the most common empty heading was the desktop <h1>, at 6% of pages.

WebAIM’s annual accessibility scan of the top one million home pages looks at structure rather than presence. Its 2026 report, based on February 2026 data, found:

Metric (home pages)	WebAIM Million 2026	Change from 2025
Average headings per home page	29.9	Total headings up 20.4% in a year
Pages with skipped heading levels	41.8%	Up from 39%
Skipped-level instances	1,206,444 (one in every 25 headings)	—
Pages with more than one <h1>	18.1%	Up from 16.3%
Pages with no headings at all	7.5%	Down from 9.8%
Share of all headings that are <h1>	5.1%	<h3> is the most common level, at 37.5%

One detail stands out: 94.9% of home pages that use an <h6> also skip heading levels. WebAIM suggests that most of these headings “probably do not reflect the actual document structure”. In other words, they are being used for their font size.

Why do heading levels still matter if Google doesn’t mind?

Because people do. WebAIM’s Screen Reader User Survey #10 (December 2023 to January 2024, 1,539 valid responses) asked how respondents find information on a long web page. 71.6% said their first move is to navigate through the headings. Asked about heading levels, 88.8% found them very or somewhat useful. “Missing or improper headings” ranked eighth among the problems respondents found most troublesome.

The standards bodies have also tightened their position. The table below shows where Google’s view and the accessibility and HTML standards agree, and where they differ.

Question	Google Search	HTML Standard and accessibility guidance
Can a page have more than one <h1>?	Yes. No upper or lower limit (Mueller, 2019).	MDN: allowed but “not considered a best practice”; prefer one <h1> per page.
Can I skip levels (h2 → h4)?	Order “doesn’t matter” for Search.	WHATWG HTML: each heading may be at most one level deeper than the one before; skipping is non-conforming. W3C WAI: avoid where possible.
Do headings have to exist?	Not required. Mueller (2023): “not necessary or critical to have a h1”.	WCAG 2.4.6 (AA) does not require headings, but those you use must describe topic or purpose. 2.4.10 (AAA) asks for section headings.
Should headings be styled with CSS?	No stated position.	WCAG 1.3.1: structure shown visually must also be in the code, so use real heading elements for real headings.

Two recent changes are worth knowing. In July 2022 the HTML Standard replaced its old “outline algorithm” with one based simply on heading levels, so wrapping several <h1>s in <section> elements no longer creates a nested structure. And a new headingoffset attribute is in the specification, but MDN marks it experimental with limited browser support, so don’t rely on it yet.

How should you structure headings on a page?

Start from the reader’s questions and let the headings follow. A service page, for example, might use one <h1> for the service and location, <h2>s for what you fix, prices, areas and FAQs, and <h3>s for individual services under “what we fix”.

Descriptive headings also make it easier for Google to match a section to a specific question, which is useful when you are aiming for featured snippets. Just don’t write headings for search engines first: Google’s helpful content guidance asks whether headings are descriptive and avoid exaggeration, not whether they contain a keyword.

A seven-step heading audit

1. Crawl the site. Export the <h1> and <h2> text for every indexable page with your crawler of choice.
2. Find empty and missing main headings. Look for pages with no <h1> or an empty one, often caused by a logo or image wrapped in a heading tag.
3. Compare the <h1> with the title. They don’t need to match word for word, but they should describe the same thing. Mismatches are a common reason Google rewrites title links.
4. Check for duplicate main headings. Boilerplate <h1>s across many pages (“Services”, “Blog”) waste a clear signal.
5. Review templates, not just pages. Theme headers, sidebars and footers often use <h4>–<h6> for styling; switch those to paragraphs or CSS classes.
6. Test with a screen reader or heading outline tool. Read the outline on its own. If it doesn’t make sense as a table of contents, fix the wording before the levels.
7. Prioritise. Fix empty, missing and misleading headings first. Treat heading-order clean-up as an accessibility improvement, not a ranking project.

Headings are one item in a wider on-page review. Our SEO audit checklist covers the rest, and our analysis of content length and SEO explains why structure usually matters more than word count.

Frequently asked questions

Is it bad for SEO to have more than one H1?

No. Google has said repeatedly that multiple <h1> elements are not a problem for Search. Accessibility guidance such as MDN still recommends one <h1> per page, so one clear main heading is the safer default.

Does heading order affect rankings?

Google’s SEO Starter Guide says it doesn’t matter for Search if headings are used out of order. Logical order still helps screen reader users, who most often navigate pages by headings.

Should my H1 match my title tag?

They should describe the same topic. Google uses <h1> elements as one source for title links and recommends putting the title text in the first visible <h1>, so a close match reduces the chance of a rewrite.

Should I put keywords in headings?

Use the words your readers use, because descriptive headings help people and search engines understand each section. Google’s guidance warns against exaggerated titles and repeated keywords; write headings that summarise the content honestly.

Sources

1. SEO Starter Guide — Google Search Central, last updated Dec 10, 2025 — heading order and number of headings
2. Influencing your title links in search results — Google Search Central, last updated Dec 10, 2025 — headings as title link sources
3. Creating helpful, reliable, people-first content — Google Search Central, last updated Oct 5, 2026 — main heading questions
4. Search Quality Rater Guidelines — Google, version of September 11, 2025 — titles and main content
5. Google Says H1 Tags Are Not Critical For Search Ranking — Search Engine Roundtable, Oct 1, 2019 — Mueller quotes (2019, 2023)
6. Multiple H1s won’t get in the way of your SEO, Google says — Search Engine Land, Oct 3, 2019
7. Google: Heading Tags are a Strong Signal — Search Engine Journal, Aug 15, 2020
8. Google Says Fixing Headings Won’t Change Rankings — Search Engine Journal, Sept 10, 2024
9. Web Almanac 2025: SEO — HTTP Archive, published Jan 15, 2026 — heading usage (figures 5.32–5.33)
10. Web Almanac 2024: SEO — HTTP Archive — empty heading data
11. The WebAIM Million — WebAIM, 2026 report (Feb 2026 data) — heading structure
12. Screen Reader User Survey #10 — WebAIM, 2024 — how screen reader users navigate
13. HTML Living Standard: Sections — WHATWG, updated Oct 26, 2026 — heading levels and outline
14. Headings — Page Structure Tutorial — W3C WAI — skipping heading ranks
15. Web Content Accessibility Guidelines (WCAG) 2.2 — W3C Recommendation, Dec 12, 2024 — SC 1.3.1, 2.4.6, 2.4.10
16. <h1>–<h6> HTML section heading elements — MDN Web Docs, modified Aug 26, 2026 — multiple h1 guidance
17. Why the HTML outlining algorithm was removed from the spec — Bruce Lawson, July 7, 2022

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