To reduce the burden of a user and to improve retrieval efficiency by loading URL(uniform resource locator) data given from a URL retrieval part and shifting a processing to a Web page display part.

A keyword analysis part 12 retrieves a keyword designation tag out of an HTML (hypertext markup language) source of a URL given from an input processing part 11 and then retrieves a tree structure contained in a URL list 31 based on a designated keyword. A URL retrieval part 13 retrieves tree structure out of the list 31 based on a root node, and selects the desired URL to be shown based on the contained keyword. Then the part 13 sends a selected URL to a Web page loading part 14, which loads the received URL data and shifts its processing to a Web page display part 15. Thus, the part 15 outputs data to an output device 22.