Rigor Monitoring & Optimization - Rigor Monitoring & Optimization is a website monitoring and performance measuring software solution that allows you to view the website from a customer perspective and conduct various tests to enhance the performance and working of the website.
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.
SolarWinds Pingdom - With website monitoring from Pingdom, you will be the first to know when your website is down. No installation required. 14-day free trial.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Site24x7 - Site24x7 offers both free & paid website monitoring services. Monitor websites remotely and receive instant email/sms alerts if your website becomes unavailable. View uptime & performance graphs of your website monitors.
Better Uptime - We call you when your website goes down