Web page browsing server, Web page browsing system, Web page browsing method and program

摘要

The present invention includes an imaging unit that repeatedly images a Web page to generate page images, a detecting unit that repeatedly detects a change in the page images, an area determining unit that determines whether an update area in the page images where a change is detected and a display area displayed on a display screen of the portable terminal have an overlap, and an image transmission control unit that causes an image transmitting unit to transmit an image including an overlap area between the update area and the display area to the portable terminal when the update area and the display area have an overlap and does not cause the image transmitting unit to transmit the image when the update area and the display area do not have an overlap.