IsDown App - Monitor all your cloud services status pages in one place
DownDetector - A simple service to tell you whether a website is down.
Feedsme - Feedsme is the business cloud services assistant that automatically integrates, analyzes and...
StatusGator - Monitor all your hosted applications, vendors, and websites, and keep your team informed of outages. StatusGator is the world's premier status aggregator, status page, and website monitoring tool.
Instatus - Quick and beautiful status pages.
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.