WebGazer is an uptime monitoring platform that checks if your website is up as it should be and notifies you if anything goes wrong
UptimeRobot - Free Website Uptime Monitoring
Optim’Match - Optim’Match is a platform that enables users to unleash the power of machine learning to attract, convert, and retain customers.
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.
Tapad - Tapad is a cross-device tracking, analytics and marketing platform.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Findify - Personalized eCommerce tool