Uptime is a comprehensive website uptime monitoring service which you can use to monitor any number of websites around the world. If one of your sites goes down you can check it manually on the Uptime site or get alerted by email so you can check...

Monitor services on your server(s) and be alerted when a services fails or is started. Monitor multiple servers Full control over what ports to monitor (on a per server basis) Multiple email address notification options Completely FREE to...

Site Uptime Enterprise allows you to create your highly profitable website monitoring and server uptime business just like SiteUptime.com and Alertra.com. Site Uptime Enterprise is a ready to run uptime monitoring solution that allows you to...

DF™ Site Monitor - is a system for monitoring web sites. The system allows monitoring the availability of web sites and their content by checking whether the given content exists or does not exist on the site. The system can be used autonomously...

phpWatch is a free PHP uptime monitoring script that can watch unlimited number of websites and send notifications via e-mail or SMS (for US phones). With an Ajaxed interface, new monitors & notifications can be easily configured. And, once the...