1. With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.

  2. Free Website Uptime Monitoring

  3. StatusCake | Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring

  4. 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.

  5. RapidSpike is an uptime and performance monitoring service for websites and web applications.

  6. Port Monitor is an easy tool that does website and server monitoring 24/7 every 60 seconds for free. It records uptime, performance and downtime causes

  7. Uptime & performance monitoring for websites and APIs.

  8. Pingometer is a service that monitors the uptime, downtime, and performance of websites. Get 24/7 monitoring - sign up for your FREE account today!

  9. Kaseya VSA is a software used in remote monitoring, information technology management, cloud-based and network security resolution that gives functionalities and tools to IT enterprises and Managed Service Providers (MSP) to enable systems to become…

  10. updown.io is a HTTP(S)/TCP/ICMP monitoring service which checks periodically the URL you want and reports back any anomaly.

  11. Monitis specializes in IT monitoring, covering server, website, app monitoring and more within an all-in-one monitoring platform.

  12. Downtime Monkey offers website downtime alerts and website monitoring solutions.