Source: Schema.org v30.1 vocabulary. Official isTierOf property definition.
What does isTierOf mean?
The member program this tier is a part of.
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