The present invention provides a method for determining website information through web page structure analysis, including: generating, when a web page starts to move, a movement start message that contains IDs issued to identify respective web pages; generating, when a web page starts to move, a movement terminating message that contains URL information about a corresponding web page and information to determine whether a corresponding web page is a main page or a subpage through the ID; generating, when all web pages have been loaded, a document terminating message containing information that analyzes which of the web pages has been moved; collecting the messages and generating a message database; and determining the website information of a specific user's visiting state and access states of the website, based on analysis of the message database.