IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Real User Monitoring (RUM)

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Real User Monitoring (RUM)

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This documentation refers to the standalone (legacy) method of running APM Server. This method of running APM Server will be deprecated and removed in a future release. Please consider upgrading to the Elastic APM integration. If you’ve already upgraded, see Real User Monitoring (RUM).

Real User Monitoring captures user interaction with clients such as web browsers. The JavaScript Agent is Elastic’s RUM Agent. To use it you need to enable RUM support in the APM Server.

Unlike Elastic APM backend agents which monitor requests and responses, the RUM JavaScript agent monitors the real user experience and interaction within your client-side application. The RUM JavaScript agent is also framework-agnostic, which means it can be used with any front-end JavaScript application.

You will be able to measure metrics such as "Time to First Byte", domInteractive, and domComplete which helps you discover performance issues within your client-side application as well as issues that relate to the latency of your server-side application.

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