Zabbix - Track, record, alert and visualize performance and availability of IT resources
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
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.
Instrumental - Real-Time Application & Performance Monitoring
Prometheus - An open-source systems monitoring and alerting toolkit.
AppSignal - We monitor the software that makes your customers happy.