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h1

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Use when auditing a page's heading structure, generating H1 text for landing pages or blog posts, or reviewing a CMS template that may produce empty or missing H1 elements.

skills/h1/SKILL.md

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Oct 31, 2026
License
MIT

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# Use a single descriptive H1

The H1 is the most prominent heading on a page and a strong on-page ranking signal. Google uses it to understand the page's primary topic. Missing, duplicate, or keyword-free H1 tags reduce topical clarity, hurting rankings for the page's target terms.

## Quick Reference

- Each page should have exactly one `<h1>` tag that describes the page's primary topic with relevant keywords
- The H1 does not need to be identical to the `<title>` tag, but they should be topically consistent
- Empty `<h1>` tags, multiple `<h1>` tags on one page, or H1s containing only the brand name are all issues to fix

## Check

Parse the rendered DOM of each page. Count all `<h1>` elements. Flag: (1) Pages with zero `<h1>` tags. (2) Pages with more than one `<h1>` tag. (3) `<h1>` elements whose text content is empty or contains only whitespace. (4) `<h1>` elements that contain only the brand name with no page-specific topic. (5) `<h1>` text that does not reflect the page's primary content topic.
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