Updating user data on a website includes: authenticating a user who is accessing the website via a client; determining whether an operation behavior of the user satisfies a first preset condition; in the event that the first preset condition is satisfied, obtaining user identification information, including a user identifier (ID); determining whether a stored user property that corresponds to the user ID satisfies a second preset condition; and in the event that the second preset condition is satisfied, updating designated service related data of the user.