An object of the present invention is enabling extraction of objects from a predetermined Web page and linked Web pages led by hyperlinks of the Web page without inputting Web page identifiers corresponding to the linked Web pages. In order to achieve this object, processing means specifies a portion sandwiched by an object start identifier and an object end identifier from display control information and extracts a Web page identifier of a linked Web page from the specified portion based on an extracted portion identifier (S25). The processing means extracts a portion as an object that is sandwiched by an object start identifier and an object end identifier and that satisfies a search condition accepted from input means from display control information of the Web page corresponding to the extracted Web page identifier and stores the portion in storage means (S35).