Semantic HTML is not a direct ranking factor but improves SEO and accessibility. ... Figures (<figure> and <figcaption>) represent an image, diagram, or illustration, ...

I’ve been posting on the page semantic HTML markup several times previously: While the benefits for accessibility and usability are quite clear, there has never been any real evidence that there ...

All in all, follow these main ideas when organizing HTML emails with semantic structure. To help everyone follow the main ideas in your document, always divide sections using heading tags.