ServersUp.net can check a number of different services on different hosts to make sure those services are up and running. It will send alerts when the statuses change.
MonitorHub Alternatives
MonitorHub is described as 'Monitor your website from worldwide locations 24x7 and be the first to know when your website is down. Receive instant alerts via SMS, email & twitter. Detailed uptime, performance & response reports available' and is a website monitoring tool in the network & admin category. There are more than 50 alternatives to MonitorHub for a variety of platforms, including Web-based, SaaS, Android, iPhone and Windows apps. The best MonitorHub alternative is Uptime Kuma, which is both free and Open Source. Other great apps like MonitorHub are UptimeRobot, Pingdom, StatusCake and WebOrbiton.
Alternatives list
As of May 2015, Browsermob is dead.
"Website monitoring for the masses. From basic free plans to enterprise level solutions, BrowserMob has it all - try our FREE website monitoring performance test.".
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