UptimeRobot

UptimeRobot is kind of like uptime-kuma except you pay for it.

Configure heartbeat monitors

I can never seem to remember how to create a heartbeat monitor of a Linux system via cron job, so now I finally have it documented below. Here's an example of a heartbeat that checks in every 2 minutes:

*/2 * * * * wget --spider https://heartbeat.uptimerobot.com/xxx >/dev/null 2>&1