RDFa and Microdata

Two ways of embedding structured data in HTML attributes rather than a script block. Read by some parsers, ignored by others, and a second place for the facts to disagree with the JSON-LD. Counted alongside JSON-LD and not scored there, because one serialisation kept accurate is worth more than three that drift. When a page declares no JSON-LD node at all, its schema.org Microdata and RDFa are read as the page's graph and every entity check runs on them (from score version 20).

Terms this definition uses

embedding · structured data · Place · JSON-LD · score version

Entities and schema

Declaring who you are in a form a resolver can use without guessing.

structured data · JSON-LD · stable @id · entity collision · reciprocated sameAs · sameAs · knowledge graph · entity resolution · entity disambiguation · Wikidata · NAP · local citation · Organization schema · LocalBusiness · FAQPage · structured data validation · @context · agentic knowledge graph · microformats (h-card) · RDF · triple · dangling @id · founder edge · foundingDate · knowsAbout · unreciprocated profile · entity graph · DefinedTerm · Person schema · named entity recognition

← dangling @id · founder edge →

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