: Finders look at the "quality" of a profile's friends. If an account has thousands of friends but zero mutual connections or engagement on personal posts, it is flagged as suspicious. Account Age and History
You can sometimes reveal partial contact info by logging out, going to the Facebook Login Page facebook fake account finder
If you suspect an account is fake, look for these common indicators: Identifying Fake Accounts and Avoiding Scams on Facebook : Finders look at the "quality" of a profile's friends
Would you like a shorter version for a Facebook post or a tweet? facebook fake account finder