UptimeRobot - Free Website Uptime Monitoring
Komodor - The Kubernetes native troubleshooting platform
StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.
Google StackDriver - Stackdriver provides monitoring services for cloud-powered applications.
FreshStatus - Better status pages in 1-click, FREE FOREVER
ALog ConVerter - Server access log solution for finance and manufacturing