RDFa is a markup standard that lets you label parts of a web page with their real meaning. It works by adding extra attributes to the HTML tags you already have, so a machine reading the page knows that a piece of text is a price, an author name, a review score or an event date rather than just words on screen.
Picture a museum where every exhibit has a small plaque. To a visitor the object looks the same, but the plaque tells you what it is, who made it and when. RDFa is that plaque layer for your HTML. The visible page does not change, but a crawler now reads clear labels instead of guessing. This is one form of structured data, the broader practice that helps search engines show rich results like ratings and FAQs. In code it looks like attributes such as vocab, typeof and property added to your existing tags, often pointing at the Schema.org vocabulary that Google and Bing both understand.
In practice most teams now reach for JSON-LD instead, because it lives in a separate block and is simpler to keep correct. RDFa still has its place, especially on pages where the data is already woven through the content and you want the meaning to sit right next to it. One real upside: because the labels wrap the visible text, the data and the page can never drift apart, since editing one edits the other. The downside is that the markup clutters your templates, which is the main reason a separate JSON-LD block won most teams over. Either way the goal is the same: make crawling easier so engines understand the page and reward it.
At TopDevs we add structured data, whether RDFa or JSON-LD, so the pages we build are not just readable by people but clearly understood by search engines too.
