Douyin friend authentication means that when adding friends on Douyin, both parties need to authenticate their identities to ensure that the added friends are real friends. Authentication methods include mobile phone numbers, WeChat, QQ and other methods. Users can choose the authentication method according to their needs.

After authentication, users can see the other party's dynamics, private message chat and other functions, which enhances the interaction and trust between users.

At the same time, Douyin friend authentication can also effectively prevent the emergence of fake accounts and harassment information, and protect the safety and privacy of users.