Cabot is described as 'Free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity' and is a Network Monitor in the network & admin category. There are more than 100 alternatives to Cabot for a variety of platforms, including Web-based, SaaS, Linux, Windows and Mac apps. The best Cabot alternative is Better Stack. It's not free, so if you're looking for a free alternative, you could try Better Stack or Zabbix. Other great apps like Cabot are UptimeRobot, Nagios, Tianji and Datadog.