A site check method is provided that enables a user to check, when the user accesses a predetermined site, whether the site is legitimate or not. The method includes a first display step in which, when the user accesses a first server managing the site from a first information terminal, the first server has the first information terminal display predetermined check information. The method further includes a second display step in which, when the user accesses a second server from a second information terminal, the second server has the second information terminal display the check information.