HTML Heading Checker
Visualize your page's H1-H6 hierarchy to ensure perfect SEO structure.
Input Source Code
Since browsers block fetching websites directly (CORS), you must paste the raw HTML
source code of the page you want to check. (Right-click on any webpage and select "View
Page Source").
H1: 0
Total: 0
Paste HTML and click 'Check Headings' to view the outline structure here.
Why is Heading Structure Important for SEO?
HTML headings (H1 through H6) are used to add hierarchy and structure to a web page. Search engines like Google use headings to understand the context and main topics of a page.
- The H1 Tag: You should generally only have one H1 tag per page. It acts like the title of a book.
- Logical Hierarchy: Never skip heading levels. You shouldn't jump from an H2 directly to an H4. This confuses search engine crawlers and screen readers used by visually impaired users.
- Keyword Optimization: Including primary keywords in H2 and H3 tags helps signal the specific subtopics covered in your content.