What is an H1 Tag? SEO Best Practices

Google’s John Mueller says using multiple H1s per page is fine.

If you’re using HTML5, this is strictly true. There’s nothing technically wrong with using multiple H1 tags in different sections.

Given that this isn’t best practice by W3C standards, why is this Google’s advice?

Answer: Because they’ve developed mechanisms to deal with the common problem of multiple H1s on a web page.

So although it probably doesn’t matter that much for SEO whether you use one or multiple H1 tags, we still think it’s best practice for most websites.