Source: Schema.org v30.1 vocabulary. Official contentRating property definition.
What does contentRating mean?
Official rating of a piece of content—for example, 'MPAA PG-13'.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status