IsItUp Network Monitor allows companies of all sizes to monitor critical applications and infrastructure. A wide variety of monitor types are included such as a Ping Monitor, Web site Monitor, Tcp/Ip Port Monitor, Windows Service Monitor,Disk Free space Monitor and an e-mail System Monitor. IsItUp continuously monitors multiple IP devices, Web sites, e-mail systems, windows services, disk free space and alerts you by pager, e-mail, or execution of a user defined program. A failed windows service may be restarted as well. The Web site monitor provides advanced features such as check summing pages to protect against content changes and Web site content checks.