Sqreen - Sqreen is a web application security monitoring and protection solution helping companies protect their apps and users from attacks. Get started in minutes.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Incapsula - Incapsula is a Security CDN that makes any website safer, faster and more reliable. 5 minute setup will make a world of difference.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
WatchGuard NGFW - The traditional Next Generation Firewall (NGFW) isn’t enough anymore. WatchGuard’s approach meets your advanced security management and deployment needs
Better Uptime - We call you when your website goes down