They define the structure of the document

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Definition and meaning in HTML
Headings in the page content are HTML tags (from <h1>to <h6>) that:


They determine the importance of individual sections
They help Google robots understand the content
They make navigation easier for users
Hierarchy of headings in the page structure
The correct structure of headings should resemble a document outline:

Level Application Quantity per page
H1 Main topic One per side
H2 Main sections Several
H3 Subsections H2 As needed
H4-H6 Further divisions Rarely used
Difference chinese overseas asia database between H1 and title
The H1 heading and page title serve different functions:

H1 tags :
Visible on the website
Describes the main topic of the content
It serves users and robots
It can be longer and more descriptive
Title :
Displayed in search results
Key to CTR
It must be concise
Contains the most important keywords
The H1 heading does not have to be identical to the title, but they should be thematically consistent.