eXternalTest is exclusively dedicated to server monitoring, and we offer the following services:
Server monitoring
Periodic monitoring of your servers and their service from different parts of the world
Alerts
If you want to, you will be alerted by email or cell-phone (soon) every time there is a problem in your server
Reports
Detailed reports and charts about the historical performance of your server
Screenshots
Periodical screenshots of your website, taken with different browsers, operating systems and screen resolutions (soon)