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.
Stagemonitor - Stagemonitor is an open-source application performance monitoring tool that helps you quickly measure your Java EE applications deeply.
Grafana - Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases
NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.
Automon - Automon is an end-to-end campaign and integration tool that is specially designed to optimize your marketing, sales, and advertising technology.
WebPagetest - Run a free website speed test from multiple locations around the globe using real browsers...