What it means
It provides agreed names for entities such as organisations, articles, products, prices or authors and the relationships between them.
Term in plain language
Schema.org
A shared vocabulary of types and properties for machine-readable descriptions of web-page entities.
Why it matters
A common vocabulary reduces ambiguity because different systems can interpret the page facts in the same way.
Example
An article uses the Article type and the headline, datePublished and author properties from Schema.org.
Related pageRelated terms
Continue exploring
Redirect
An HTTP response that sends browsers and search crawlers from one URL to another.
Structured data
Machine-readable markup that explicitly describes page entities and their properties.
JSON-LD
A format for supplying linked structured data in a separate JSON block within an HTML document.