1. A visited website search system to search for a website visited by a user, the system comprising: a web browser configured to be executed on a computer used by the user, to receive a search command for results from destinations comprising a website visited by the user and addresses for resources stored on the computer; a web site monitoring unit to monitor visits to the website by the user using the web browser, to determine whether the user is revisiting the same website within a determined time, to record, if the user revisits the same website after the determined time elapses, information about the user's revisit in a website visit history database, and not to record information about the user's revisit if the user revisits the same website before the determined time elapses; a web server to store, in the website visit history database, information about the resources stored at the addresses on the computer, to receive the search command from the web browser according to a hyper text transfer protocol (HTTP) when at least one destination address of the search command is located on the computer, and to provide the web browser with a web document type search result indicating the resources stored on the computer that are relevant to the search command; a search unit to generate a first search result by searching, corresponding to a query provided by the search command, the website history visit database for the website visited by the user and for the information about the stored resources; and a web document generation unit to transform the first search result into the web document type search result, wherein the system establishes a destination address of the search command as a computer address or a loopback address if the destination address is needed to search the website visited by the user, wherein the web server investigates a sending address of the received search command, and provides a service if the sending address is identical to the computer address or the loopback address.