Web Server Monitoring Websites
hyperspin.com
Be the first to know when your website goes down. Receive alerts by email, SMS and push notification. Sign up FREE!
463,597 
$ 8,280.00
freewebmonitoring.com
Free Web Site Monitoring. Monitor your web site's availability 24 hours a day, 7 days a week with instant email alerts and weekly web site performance statistics.
349,083 $ 23,760.00