What are some alternatives?
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Cachet - Cachet is a free, open source status page for your API, service or company. Built with all of the features that you'd expect from a status page.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
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.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.