core + pending (Pending Extension): these terms are pending wider review. Feedback is welcomed!


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UserInteraction and its subtypes is an old way of talking about users interacting with pages. It is generally better to use Action-based vocabulary, alongside types such as Comment.

Usage: Between 50,000 and 100,000 domains
PropertyExpected TypeDescription
Properties from UserComments
commentText Text The text of the UserComment.
commentTime Date  or
The time at which the UserComment was made.
creator Organization  or
The creator/author of this CreativeWork. This is the same as the Author property for CreativeWork.
discusses CreativeWork Specifies the CreativeWork associated with the UserComment.
replyToUrl URL The URL at which a reply may be posted to the specified UserComment.


This class contains derivatives of IPTC rNews properties. rNews is a data model of publishing metadata with serializations currently available for RDFa as well as HTML5 Microdata. More information about the IPTC and rNews can be found at

Schema Version 3.2