RDFa, like Microdata, embeds semantic information in HTML attributes, but is linked to the more general RDF model. In search engine structured data, it is mentioned along with JSON-LD and Microdata.
RDFa is not often chosen for general website SEO implementations. Maintenance can be difficult if the team does not understand the syntax.
On sites with existing RDFa, check whether the meaning matches the visible text. For new projects, the format is determined by comparing technical requirements and operational convenience.
RDFa deals with structured data and the schema category, and it is easy to understand its location in the document structure when read together with items such as Microdata, JSON-LD, and Schema.org.
Key takeaways
- RDFa is a term related to the type, attribute, verification, and search result expression of structured data.
- It is used to check whether the visible text and the data read by the machine convey the same meaning.
- When viewed together with Microdata and JSON-LD, it is easy to distinguish the scope of schema application.
- It is useful for checking rich-result eligibility, entity clarity, and document relationship expression.