I like how compatible it is with the different operating systems that exist, the monitoring of our network is very good, it is intuitive, it identifies vulnerabilities in the different devices connected to our network, the detection is very fast, it is a system that facilitates the detection of problems in our network.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Uptime Kuma - A fancy self-hosted monitoring tool.
NetVizura NetFlow Analyzer - NetFlow Analyzer is a solution for bandwidth monitoring and traffic analysis. It helps with traffic investigation, analysis and reporting
Statsignal - Statsignal is a simple and cost-effective way to monitor your website or server and publish a status page of your system.
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.
OnlineOrNot - Uptime monitoring for software teams (even teams of one).