With one-minute website uptime check intervals, and detailed downtime reporting to any device, Uptime.com monitoring offers effortless protection. Why check website availability manually when you can enjoy always-on website uptime monitoring? Our automated alerts dramatically reduce the time it takes to check website uptime and downtime and puts more time back in your day.
UptimeRobot - Free Website Uptime 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.
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.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Pingbreak - Pingbreak is an original and free monitoring service.