Getting Started with Web Performance

Web analytics is often based on invasively collecting and aggregating user data. But web analytics doesn’t have to be an invasion of privacy. A growing movement of businesses, including performance monitoring services like Request Metrics, are working to create sustainable web analytics tools. To...

Cumulative Layout Shift, sometimes known as jank, is a measurement of how much elements move due to late-rendered content. You can think of it as a measurement of layout instability. It has become a common problem for many websites due to third-party scripts and tag management.

Largest Contentful Paint (LCP) is a measurement of how long the largest element on the page takes to render. It’s one of several Web Vital metrics that measure how real users perceive the performance of modern web applications. New measurements like Largest Contentful Paint are increasingly impor...

First Input Delay (FID) measures how long the browser took to respond to the first user input event. It’s one of several Web Vital metrics that measure how real users perceive the performance of modern web applications. New measurements like First Input Delay are increasingly important as JavaScr...

News teams often compete to break the story first. We think they should also compete on being the first to load their website. Let’s apply our web performance skills to a real world example: which news website has the best performance?