Information update detection system

摘要

A detection target managing server configuring a Web page update detection system is arranged at the Internet. The update detection target managing server manages URL of data to be the update detection target for every user of the system and manages contact information of each user and a group to which each user belongs. An update detecting server is arranged in intranets connected to the Internet, accesses WWW server on the intranet and WWW servers on the Internet, in accordance with contents of database managed by the update detection target managing server and detects an update state of the Web page. Thus, the update state of the information shown in an internal network can be detected while saving costs for introduction and maintenance.