Uptime Monitor
The uptime is completely monitored by Uptime Robot and they send the alert notification.
If you are facing any issue with your account -
FAQs - ...
Tue, 10 Jun, 2014 at 12:11 PM
The normal limit for monitoring sites with Uptime Robot is 50 sites. But they have agreed to increase it on request.
Send them a mail at support@uptimero...
Tue, 14 Oct, 2014 at 5:31 AM