RUM

RUM stands for Real User Monitoring, which is a method of measuring and analyzing the performance of a website or web application from the perspective of its users. It involves collecting data on how real users interact with a website or application by tracking their clicks, page views, load times, and other metrics that reflect their experience.

By using RUM, developers can gain valuable insights into how their websites perform in the real world, under real-world conditions. This can help them identify and fix issues that may affect user experience, such as slow loading times, broken links, or errors in the code.

RUM data is typically collected through JavaScript tags added to each page of a website or application. The tags capture data about user interactions and send it back to a central server for analysis. From there, developers can use specialized tools to visualize and interpret the data, providing insights into how users interact with the site and where improvements can be made.

Overall, RUM provides a valuable tool for ensuring that websites and web applications are optimized for the best possible user experience. By monitoring and analyzing user behavior in real-time, developers can make informed decisions about how to improve site performance and address issues as they arise.