Automatic login method and device between multiple websites

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

• receiving, by a server hosting a first website, a request from a user for logging in to an account of a second website associated with an account of the first website;
• determining that the account of the first website is logged in to by the user;
• generating an automatic login token based on one or more token generation rules agreed to by the second website for performing an automatic login on the second website;
• and
• generating and sending an automatic login link to the user, wherein the automatic login link includes the automatic login token, the automatic login link allowing the user to send an automatic login request that includes the automatic login token, and wherein the automatic login token is verified based on the one or more token verification rules to allow the user to automatically log in to the account of the second website.

A computer-implemented system, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
• receiving, by a server hosting a first website, a request from a user for logging in to an account of a second website associated with an account of the first website;
• determining that the account of the first website is logged in to by the user;
• generating an automatic login token based on one or more token generation rules agreed to by the second website for performing an automatic login on the second website;
• and
• generating and sending an automatic login link to the user, wherein the automatic login link includes the automatic login token, the automatic login link allowing the user to send an automatic login request that includes the automatic login token, and wherein the automatic login token is verified based on the one or more token verification rules to allow the user to automatically log in to the account of the second website.