--- id: installation title: Datadog RUM Installation sidebar_label: Installation # prettier-ignore description: Adding Datadog Real User Monitoring (RUM) to Your App --- Datadog Real User Monitoring (RUM) allows you to visualize and analyze the real-time performance and user journeys of your application's individual users. This is an option to profile and monitor the user experience of your Backstage installation. There is a basic [Datadog RUM](https://docs.datadoghq.com/real_user_monitoring/) integration built into Backstage. You can enable it by adding the following to your `app-config.yaml`: ```yaml app: datadogRum: clientToken: '123456789' applicationId: qwerty # site: datadoghq.eu # env: 'staging' ``` If your [`app-config.yaml`](https://github.com/backstage/backstage/blob/e0506af8fc54074a160fb91c83d6cae8172d3bb3/app-config.yaml#L5) file does not have this configuration, you may have to adjust your [`packages/app/public/index.html`](https://github.com/backstage/backstage/blob/e0506af8fc54074a160fb91c83d6cae8172d3bb3/packages/app/public/index.html#L69) to include the Datadog RUM `init()` section manually. The `clientToken` and `applicationId` are generated from the Datadog RUM page following [these instructions](https://docs.datadoghq.com/real_user_monitoring/browser/). There are two optional arguments: - `site`: The Datadog site of your organization; defaults to `datadoghq.com` - `env`: The application environment for Datadog events (no default)