Frontend System Design
/Expert
Real User Monitoring (RUM)
Definition
RUM is a form of passive performance monitoring that captures and analyzes every transaction of every user of a website. It tracks the ACTUAL Core Web Vitals experienced by real users on varying devices and network conditions.
Explain Like I'm New
Instead of testing your website's speed on your ultra-fast Macbook, RUM tells you exactly how slow your website is loading for a user on a 3G phone in rural India.
Interview Questions
basic
- What is the core concept of Real User Monitoring?
intermediate
- How does Real User Monitoring impact the overall user experience?
advanced
- How do you scale Real User Monitoring across a large enterprise application?
trick
- Can Real User Monitoring be fully automated?