statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
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.
Instatus - Quick and beautiful status pages.
YUNO - YUNO is a web data driven company focussed on solving customer challenges in web data discovery and extraction space.
ContainIQ - Kubernetes native monitoring instantly