The independent fact-checkers would then work to verify the accuracy of the content that had been flagged and give it a “content rating,” labeling content as “False,” “Altered,” “Partly False,” “Missing Context,” “Satire” or “True” and adding notices to the posts.
Those fact-checking measures applied to any posts on Facebook, and they expanded to include Instagram in 2019 and Threads last year. Fact-checkers were able to review content including “ads, articles, photos, videos, Reels, audio and text-only posts.”