Google's John Mueller advises using semantic HTML. Though not a ranking factor, it helps search engines understand content and boosts accessibility.

Understanding the role of HTML code helps developers understand what that code is doing. Semantic HTML tells developers (or search engines) what the purpose of that code is.

But you don’t need to use it, and your sites can still look good without it. How Do CSS and HTML Work Together? If you learned about the web a long time ago, or taught yourself the basics, you may be ...