Forum Moderators: phranque
The tool is crowdsourced from those who sign up with it and it tell you primarily two things:
(1) Whether any backlinks to your site have been disavowed by other participants.
(2) Whether your site has been disavowed by others in the database.
Bruce Clay, the owners of this tool, promise to anonymize the data, so no one can tell the source of those disavowing the URLs within the tool.