Another one I found here on HackerNews in a "Uptime Robot Alternatives Thread" and which I use in my home setup is https://github.com/TwiN/gatus https://github.

Another one I found here on HackerNews in a "Uptime Robot Alternatives Thread" and which I use in my home setup is https://github.com/TwiN/gatus https://github.com/TwiN/gatus . Very easy setup and configuration.