1. Web monitoring service, which checks website every 5 minutes.

  2. Uptime monitoring, performance, seo monitoring .

    free

  3. Website uptime monitoring. Be notified by email when your site is down.

  4. Uptime monitoring made simple, reliable & affordable. Get instant alerts when your website goes down, weekly reports & performance stats.

  5. Webwatch 24x7 is a website uptime and server monitoring solution.

  6. Monitor and communicate the status of your site, app or API with your very own status page.

  7. Vigil offers website-monitoring and downtime notifications.

  8. A New & Better Website, Service and Server Performance Monitoring Tool

  9. WebSitePulse monitoring service. Test your site and server. Design your own monitoring service.

  10. Wormly is a website uptime monitoring solution.

  11. WebMon is a freeware web page update monitoring program - it saves you time and keeps you updated...

  12. WebSite-Watcher detects website updates and highlights all changes in the text. WebSite-Watcher monitors web pages, password protected pages, disucssion forums and much more.