Which application performance aspect does RUM focus on?

RUM, or Real User Monitoring, focuses specifically on the end-user experience when interacting with web applications. This approach provides insights into how real users are experiencing your application, including metrics like page load times, user interactions, and error rates. By collecting data directly from users' browsers, RUM can highlight performance issues that might not be evident from backend monitoring alone. This is crucial for understanding how users perceive the responsiveness and functionality of the application, enabling developers and operations teams to enhance performance based on actual usage patterns and user feedback.

While backend server load, data integrity, and network latency are important aspects of application performance, they are not what RUM is primarily designed to monitor. Backend server load focuses more on server health and capacity, data integrity refers to the accuracy and consistency of data, and network latency is concerned with the delays in data transfer over the network. RUM provides a user-centric perspective that complements these other performance metrics, making it essential for optimizing the overall user experience.