Using a single <h1> tag per page is a best practice for SEO and accessibility, serving as the main title to inform search engines and users about the content. While HTML5 allows multiple <h1> elements, limiting to one prevents confusion, improves navigation for screen readers, and creates a clear content hierarchy.

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Why Use One H1 Tag:

• SEO: Helps search engine crawlers identify the main topic of the page.

• Accessibility: Assures screen reader users that the content structure is easy to follow.

• Usability: Creates a clear and concise title that helps with understanding the page's purpose.

  
  

  

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Best Practices:

• Make the H1 the main headline of your page.

• Include your primary keyword in the H1.

• Use <h2> through <h6> tags for subheadings.

• Ensure the H1 is unique to each page.

  
  

  

  Stack Overflow +1

If a page requires multiple major sections, you can use HTML5 <section> tags to structure it, but for most purposes, one <H1> provides the best clarity, say many experts and technical resources.