From the course: Vanilla JavaScript: Web Performance Optimization APIs
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Real user monitoring (RUM) and reactive web performance - JavaScript Tutorial
From the course: Vanilla JavaScript: Web Performance Optimization APIs
Real user monitoring (RUM) and reactive web performance
- [Instructor] When we are working statically in our development environment to improve performance, we don't know exactly how well our users are accessing the website. So our measurements are not real. So that's why we can use real user monitoring solution, or RUM, that will basically gather information clients side from the browser to understand the current metrics of our user. We can make analytics on that data. We can improve the experience of every user based on that data. And also we can prove and create that stats on our servers and local testing environments to create conditions for simulation that are closer to real ones. And after, we gather some data, we can start applying some reactive web performance techniques. In this case, the idea of reactive web performance is to be closer to our user centric goals on every situation, no matter what. So if we want to show the user meaningful content in three seconds, we need to do that if the user is on desktop with a Wifi…
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