Header tags
Header tags are used on web pages to isolate sections of content and establish visual hierarchies. They pass in the order of track 1 (H1), from channel 2 (H2) to track 6 (H6). These types of tags do not appear in the SERP, but are essential for calculating your site's ranking.
In the past, each page could only have one H1 tag (similar to titles). However, this is no longer the case when using HTML5. This latest version of the markup language removes some limitations and provides search engines with much more contextual information they can rely on.
HTML5 allows you to create multiple H1s on a page by adding article tags. You can now break up your site into multiple "Articles", each with a unique title tag that tells search engines that these sections can be considered separate.
How important are headline tags for SEO? (Meta tags)
Headline tags continue to play an important role in shaping your content for usability and SEO. The above move to H1 tags using HTML5 also means you won't have to worry about an on-page SEO audit.
Remember that headline tags should organize your content so that it is understandable to the reader. If visitors can easily view your content and understand what your titles are about, chances are the search engine will do the same.
