schema.org
Open vocabulary for structured data on the web, co-maintained by Google, Microsoft, Yahoo, and Yandex.
Definition
schema.org is the open vocabulary that defines the types and properties used in structured data — Article, FAQPage, Product, Organization, Person, and hundreds more. Originally launched by Google, Microsoft, Yahoo, and Yandex in 2011, it's now the universal schema for SEO and AI search. JSON-LD is the recommended way to embed it.
When to use
Reference schema.org when picking the right type for any structured-data block. The vocabulary covers almost any real-world entity; if a type exists, use it rather than inventing a custom one.
See also
- JSON-LD — JSON for Linking Data — the JSON syntax for embedding schema.org structured data in a web page.
- structured data — Machine-readable metadata embedded in a page that describes its entities — consumed by search and AI engines.