core + meta (Meta Extension): terms used within schema.org for schema definitions.

Important Note:

You are viewing a test version of Schema.org that includes draft proposals for meat related additions to the core Schema.org vocabulary.

These efforts are based on the work of Many Great Individuals, with support of the W3C MEAT Community Group (https://www.w3.org/community/meat).
These proposals include the following Types: These proposals include the following Properties:

Schema.org Hosted Extension: meta

Schema.org is a set of extensible schemas that enables webmasters to embed structured data on their web pages for use by search engines and other applications. For more details, see the homepage.

The meta extension contains terms primarily designed to support the implementation of the Schema.org vocabulary itself. It includes terms such as Class, Property, domainIncludes and supersededBy. They are not currently advocated for widespread use across the web.


Terms defined or referenced in the 'meta' extension.


Types (2)
Class, Property
Properties (5)
category, domainIncludes, inverseOf, rangeIncludes, supersededBy


  • SCHEMA_VERSION: 3.1
  • ENABLE_HOSTED_EXTENSIONS: True
  • host_ext: meta
  • myhost: None
  • myport: 80
  • mybasehost: sdo-meat.appspot.com
  • debugging: False
  • AppEngine Version: 1