Question about pug websites
 

I have a question , how do pug websites like faceit work ? how do they whitelist automatically the players and at end of the match undo ?

Re: Question about pug websites
 

Every game, all the eligable players STEAM IDs that are linked to the site are added into a list on the playable server.
Then when a client tries to connect, the server compares the connecting STEAM ID to the STEAM IDs on the list, and if its equals one of them the client is able to join the server.
If not, you will get a message and get kicked out. The list resets when the match is over.