UptimeRobot - Free Website Uptime Monitoring
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.
FreshStatus - Better status pages in 1-click, FREE FOREVER
Freshworks - Delight your customers, from wherever you are
Status.io - Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.
YUNO - YUNO is a web data driven company focussed on solving customer challenges in web data discovery and extraction space.