</> Web Validators

Full Schema Hierarchy

Browse every schema.org type: what it inherits from, what inherits from it, and every property it accepts.

Built from schema.org's own machine-readable release -- 939 types and 1538 properties, version 30.1 -- and served from a committed copy, so it works whether or not schema.org is reachable. Each property is shown with the type it was declared on, which is the part that is hard to see on the official hierarchy page.

Based on: Schema.org · Schema.org — Full Hierarchy

About this validation

Browses the schema.org type hierarchy from a committed copy of schema.org's own machine-readable release: supertypes, subtypes, and the properties a type accepts including everything it inherits.

Rules reviewed:
Nov 15, 2026

SEOTechTests methodology: Serves schema.org's type hierarchy from a copy of its own machine-readable release that is generated by a script in this repository and committed, so the page never depends on schema.org being reachable. Supertypes are flattened breadth-first, and the property list for a type is everything declared on it plus everything inherited.

Standards and vendor-documented behavior can change. This reflects the source as last reviewed above, not a permanent guarantee.

EndorseAction

An agent approves/certifies/likes/supports/sanctions an object.

schema.org/EndorseAction27 properties0 subtypes

Inheritance

Thing→Action→AssessAction→ReactAction→EndorseAction

Properties declared on EndorseAction (1)

endorseeOrganization, PersonA sub property of participant.

Inherited properties (26)

actionProcessfrom ActionHowToDescription of the process by which the action was performed.
actionStatusfrom ActionActionStatusTypeIndicates the current disposition of the Action.
additionalTypefrom ThingText, URLAn additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax.
agentfrom ActionOrganization, PersonThe direct performer or driver of the action (animate or inanimate).
alternateNamefrom ThingTextAn alias for the item.
descriptionfrom ThingText, TextObjectA description of the item.
disambiguatingDescriptionfrom ThingTextA sub property of description.
endTimefrom ActionDateTime, TimeThe endTime of something.
errorfrom ActionThingFor failed actions, more information on the cause of the failure.
identifierfrom ThingPropertyValue, Text, URLThe identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc.
imagefrom ThingImageObject, URLAn image of the item.
instrumentfrom ActionThingThe object that helped the agent perform the action.
locationfrom ActionPlace, PostalAddress, Text, VirtualLocationThe location of, for example, where an event is happening, where an organization is located, or where an action takes place.
mainEntityOfPagefrom ThingCreativeWork, URLIndicates a page (or other CreativeWork) for which this thing is the main entity being described.
namefrom ThingTextThe name of the item.
objectfrom ActionThingThe object upon which the action is carried out, whose state is kept intact or changed.
ownerfrom ThingOrganization, PersonA person or organization who owns this Thing.
participantfrom ActionOrganization, PersonOther co-agents that participated in the action indirectly.
potentialActionfrom ThingActionIndicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
providerfrom ActionOrganization, PersonThe service provider, service operator, or service performer; the goods producer.
resultfrom ActionThingThe result produced in the action.
sameAsfrom ThingURLURL of a reference Web page that unambiguously indicates the item's identity.
startTimefrom ActionDateTime, TimeThe startTime of something.
subjectOffrom ThingCreativeWork, EventA CreativeWork or Event about this Thing.
targetfrom ActionEntryPoint, URLIndicates a target EntryPoint, or url, for an Action.
urlfrom ThingURLURL of the item.

FAQ

Where does this hierarchy come from?

From schema.org's published machine-readable vocabulary, condensed to the type and property relations and committed to this site. The release version it was built from is shown with the results.[1, 2]

Why does a type list properties it does not declare?

Because it inherits them. Every type ultimately descends from Thing, so name, url, description and image are available everywhere without being declared on each type.[1]

What do pending and attic mean next to a type?

schema.org keeps proposed terms in a pending area before they join the core vocabulary, and moves retired ones to an attic so old markup still resolves. A term in either is real, but not part of the core vocabulary.[1]