New Relic’s application monitoring gives you detailed performance metrics for every aspect of your environment. Manage application performance in real-time. New Relic is the market leader, but tends to be on the more expensive end.newrelic.com
Logging: Quickly search, filter, and analyze your logs for troubleshooting and open-ended exploration of your data. Explore and analyze logs from all your services, applications, and platforms. Search and filter your logs using automatically generated facets. Visualize log data on dashboards or build sophisticated alerts. DataDog is super capable and enterprise scale, but on the more expensive end. APM: Monitor, troubleshoot, and optimize end-to-end application performance.
Rails Monitoring, Django Monitoring, Elixir Phoenix Monitoring, PHP Laravel Monitoring, and more that identifies slow database queries, memory leaks, and more. Scout APM is cheaper, startup-friendly, and easy to use, but doesn't support as wide a range of stacks or features.
Website performance monitoring made easy. Pingdom helps you gain instant insights into your website’s availability and performance so that you can outsmart competition with an amazing end-user experience.