Semantic HTML tells developers (or search engines) what the purpose of that code is. For example, the <footer> element tells developers or search engines that whatever is wrapped within that ...

Google's John Mueller advises using semantic HTML. Though not a ranking factor ... algorithms aren’t too precise about similar elements. For example, when grouping together text sections ...

Perhaps the most important semantic HTML5 element is <article ... Will it work with my application code? Can I, for example, style it using row class names or other grid logic?