Tik Tok may automatically clear the viewing history for the following reasons: Tik Tok sets the time for automatically clearing the viewing history, which is generally 30 days or 60 days. The user manually cleared the viewing history. Tik Tok's account is cancelled or banned, and the viewing history will be cleared.

Tik Tok's viewing history is kept for 30 days. According to the public information about the query, if you watch some videos on Tik Tok, these videos will be saved in the viewing history, but after 30 days, these viewing records will be automatically deleted.

Tik Tok's close friends usually disappear within 24 hours after reading your work record. But if your work is seen by more people, it will last longer.