core + bib (Bibliographic Extension): terms relating to books and bibliography.

upvoteCount

Canonical URL: http://schema.org/upvoteCount

Thing > Property > upvoteCount

The number of upvotes this question, answer or comment has received from the community.

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
Integer
Used on these types
Comment
Question

Schema Version 3.3