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

Learn how to use HTML tags to structure web pages, improve SEO, and create better user experiences.

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

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