statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.

Anchor CMS - Free and lightweight blogging system

UptimeRobot - Free Website Uptime Monitoring

SpeakPipe - SpeakPipe is a tool enabling organizations to receive voice messages from the audience directly on the website.

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.

WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.