RDFa is a structured-data syntax that embeds machine-readable vocabulary and relationships directly inside existing HTML through attributes — letting a page carry meaning about its content without duplicating it in a separate JSON block.
| Term | RDFa |
|---|---|
| Category | Structured Data, Social and Media |
| Also known as | Resource Description Framework in Attributes |
| Where it appears | Schema factors |
What it means in RankGear
RDFa turns up inside RankGear’s Schema factors, which look at how a page describes itself to machines. Rather than sitting in a self-contained script the way JSON-LD does, RDFa annotates the markup that is already on the page — attaching properties such as typeof and property to the same elements a reader sees. When RankGear inspects the structured data of your page and the ranking competitors, RDFa is one of the syntaxes it can detect and account for, so a page marked up this way is recognized as carrying schema rather than being read as having none.
How to interpret it
Treat RDFa as a delivery format for meaning, not a ranking lever in itself. What matters is that the property, its type, and its format are valid, and that the markup describes content the visitor can actually see on the page rather than asserting claims that exist only in the attributes. When you compare your page against the SERP, read RDFa the way you would any schema signal: note whether ranking pages carry structured data at all and whether yours is missing it, then confirm the specific properties are well-formed. A page can technically emit RDFa and still fail validation if the vocabulary or nesting is wrong, so presence alone is not the finish line.
Example
Suppose you are analyzing a recipe page for “sourdough starter” and the top ranking results annotate their ingredient lists and cook times with RDFa attributes woven into the visible HTML. RankGear’s Schema factors can surface that those competitors carry structured data describing the recipe while your target page ships the same content with no machine-readable markup at all — a concrete gap you can close by adding the properties to the elements already on the page.
Important considerations
- Describe what is visible: RDFa should annotate real, on-page content. Marking up claims a user cannot see risks the markup being ignored or flagged.
- Eligibility is not display: correct RDFa can make a page eligible for a rich or social presentation, but no platform guarantees it will actually render that enhanced result.
- Correlation is not causation: seeing structured data on ranking pages is evidence drawn from the measured SERP, not proof that adding RDFa will move rankings. The markup does not by itself make a page rank.
- Provider-scale, not Google scores: RankGear’s schema observations are comparative indicators computed from the analyzed competitors, not values Google reports.
Related terms
Part of the RankGear glossary · how RankGear measures · the 870 factors.