HTML stands for Hypertext Markup Language, and provides the backbone for the biggest websites on the internet.

HyperText Markup Language (HTML) is the set of markup symbols or codes used to display on the internet. The markup tells web browsers how to display a webpage’s words and images.

Search Engine Land's Guide to SEO Chapter 3: HTML Code & Search Engine Ranking Success Factors explains HTML elements & using structured data.

Semantic HTML makes it clear where the main content of a webpage is, which can be helpful for search engines and accessibility ...