1. Monitor site uptime (not user-perceived load performance).

  2. Test your website load speed from 6 locations at once

  3. Statusbot is an API for monitoring the status pages of web-based applications.

  4. LogicMonitor is the SaaS performance monitoring platform for the world's best IT teams. Deploy Fast, Monitor More, Improve Ops.

  5. Dead simple website monitoring free forever ๐Ÿฅณ

  6. Primate powered algorithms that scan your site for common bugs and SEO mistakes.

  7. New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.

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

  9. A pain-free service to add SSL to your site, for non-geeks

  10. A Marvelous Open Source Status Page System

  11. Uptrends is a website and mobile app that allows you to monitor your website. You can use it to both monitor the security and performance of your website as well as the activity on your site. Read more about Uptrends.

  12. Radar - Location sharing for friends and teams.