End User Monitoring
End User Monitoring (EUM) is a performance monitoring practice that focuses on measuring and analyzing the real-world experience of end users interacting with applications, websites, or services. It tracks metrics such as page load times, transaction success rates, and user interactions from the perspective of actual users across various devices, browsers, and network conditions. This approach helps organizations understand how their applications perform in production environments and identify issues that impact user satisfaction.
Developers should learn and use End User Monitoring to ensure their applications deliver optimal performance and reliability to end users, which directly impacts business metrics like conversion rates and customer retention. It is particularly crucial for web and mobile applications where user experience is critical, as it helps identify performance bottlenecks, errors, and usability issues that synthetic monitoring or server-side metrics might miss. EUM is essential for DevOps and SRE teams aiming to implement user-centric observability and proactive incident management.