Page Header Structure
Enter a website address to see the H1–H6 header structure. Useful for SEO audits.
The structure of webpage headings (H1–H6) is important for SEO and content readability. Proper use of headings helps search engines understand the topic of the page and the hierarchy of information.
This tool lets you quickly check the heading structure of any website. Just enter a URL to see all H1, H2, H3, H4, H5 and H6 headings used in the HTML code.
Why are H1–H6 headings important for SEO?
HTML headings help search engine crawlers understand the content structure of a page. A well-designed heading hierarchy makes it easier for search engines to index the page and improves readability for users.
- the H1 heading defines the main topic of the page
- H2 and H3 headings divide the content into sections
- a correct heading structure makes it easier for Google to analyze the page
- a clear hierarchy improves the user experience
What do H1–H6 headings mean?
H1
the main page heading — should typically appear only once
H2
section headings dividing the main parts of the content
H3
subsections within H2 headings
H4–H6
lower heading levels used in more complex content structures
FAQ — SEO Heading Structure
How many H1 headings can a page have?
It is generally recommended to use one H1 heading per page that describes the main topic of the content. In practice HTML5 allows more H1 headings, but for SEO it is best to use a single main heading.
Do H2 and H3 headings matter for SEO?
Yes. H2 and H3 headings help search engines understand the content structure and thematic breakdown of the page. They can also contain important keywords.
Is missing an H1 heading an SEO mistake?
The absence of an H1 heading does not cause a direct penalty in Google, but it can make it harder for the search engine to understand the topic of the page. It is therefore recommended to use one.
Why is it worth analyzing the heading structure?
Heading analysis helps detect SEO issues such as a missing H1, too many headings of the same level, or an incorrect content hierarchy.