Schema.org · Structured data vocabulary
Schema.org is a standardized vocabulary for structured data, founded by Google, Microsoft, Yahoo and Yandex. Version 30.0 was released on March 19, 2026: it adds the Credential and Error classes among other things, and equivalence annotations with GS1, Dublin Core and Open Graph.
Standalone definition · 43 words
How does Schema.org work?
The vocabulary defines types (Article, Product, Organization, Person, FAQPage, DefinedTerm) and properties, usable with JSON-LD, Microdata or RDFa. It is developed by an open community, through GitHub and the public-schemaorg list. Each engine decides which types it uses and how.
Schema.org and Google: what is the relationship?
Google uses only part of the vocabulary for its rich results, and retires some results (FAQ in May 2026). A type valid in Schema.org therefore guarantees neither a display nor a ranking effect. Markup also serves the understanding of pages and entities.
How do you follow changes?
The releases page on schema.org lists each release and its changes. For a site, it is enough to audit the types actually used, validate with the Schema.org validator and check Google’s documentation for the types that produce rich results.
Frequently asked questions
Should I update my markup with each version?
No. Versions add types and properties without breaking old ones.
Is Schema.org reserved for Google?
No. It is used by several engines and applications.
Which validator should I use?
The Schema.org validator for general validity, the rich results test for the types Google supports.
Related terms
Further reading
- Checklist GEO and LLM / AI 2026
- 2026 GEO Tools Comparison: The Decision Guide
- ← Back to the GEO glossary (114 terms)