---
title: RUM Performance Overview Dashboards
description: >-
  Visualize application performance with dashboards covering Core Web Vitals,
  loading times, resource performance, and mobile metrics.
breadcrumbs: >-
  Docs > RUM & Session Replay > Platform > RUM Dashboards > RUM Performance
  Overview Dashboards
---

# RUM Performance Overview Dashboards

## Web app performance{% #web-app-performance %}

The web app performance dashboard offers a bird's-eye view of RUM web applications. It shows:

- **Core web vitals**: For all views, additional browser KPIs are highlighted: Largest Contentful Paint, First Input Delay, and Cumulative Layout Shift. Other performance telemetry, such as Load Time, is also available.
- **XHR and Fetch requests and resources**: For all views, identify bottlenecks when your application loads.
- **Long tasks** : Events that block the browser's main thread for more than 50ms.

{% image
   source="https://datadog-docs.imgix.net/images/real_user_monitoring/dashboards/dashboard-performance%20-web-app.01d50e748be6b4312fbdd3d8b5ceca92.png?auto=format"
   alt="Out-of-the-box RUM Web App Performance Overview Dashboard" /%}

For more information about the data displayed, see [RUM Browser Data Collected](https://docs.datadoghq.com/real_user_monitoring/application_monitoring/browser/data_collected/).

## Mobile app performance{% #mobile-app-performance %}

The mobile app performance dashboard gives an overview of RUM mobile applications. It shows:

- **Mobile vitals**: For all screens, additional mobile KPIs are highlighted: slow renders, CPU ticks per seconds, frozen frames, and memory usage. Other performance telemetry, such as crash-free sessions, is also available.
- **Resources analysis**: For all screens, identify bottlenecks when your application requests content.
- **Crashes and errors**: Identify where crashes and errors can surface in your application.

{% image
   source="https://datadog-docs.imgix.net/images/real_user_monitoring/dashboards/dashboard-performance%20-mobile-app.d97ac1faa20ff74111aa9d4f1d2450fc.png?auto=format"
   alt="Out-of-the-box RUM Web App Performance Overview Dashboard" /%}

For more information about the data displayed, see our documentation for each platform: [iOS RUM](https://docs.datadoghq.com/real_user_monitoring/ios/data_collected/), [Android RUM](https://docs.datadoghq.com/real_user_monitoring/android/data_collected/), [React Native RUM](https://docs.datadoghq.com/real_user_monitoring/reactnative/data_collected/), and [Flutter RUM](https://docs.datadoghq.com/real_user_monitoring/application_monitoring/flutter/data_collected/).

## Resources{% #resources %}

The RUM resources dashboard helps you identify which resources have the heaviest impact on your application. It shows:

- **Most requested resources**: Visualize which resources are being loaded the most, and measure their size and load time.
- **XHR and Fetch requests**: Requests repartition, method, and error status codes.
- **Resource load timings**: Monitor the trends in resource timings (DNS Lookup, Initial Connection, Time To First Byte, Download) collected by the browser SDK.
- **3rd party resources**: Understand which of your 3rd party resources are having the most impact on your application.

{% image
   source="https://datadog-docs.imgix.net/images/real_user_monitoring/dashboards/dashboard-performance-resources.551e8fb6c90c26fde349d660f424a122.png?auto=format"
   alt="Out-of-the-box RUM Web App Performance Overview Dashboard" /%}

For more information about the data displayed, see [Real User Monitoring Data Security](https://docs.datadoghq.com/data_security/real_user_monitoring/).

## Further Reading{% #further-reading %}

- [Learn about the RUM Explorer](https://docs.datadoghq.com/real_user_monitoring/explorer)