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Priority Hints are coming to an Origin Trial near you! Try them out!
Client hints are a set of HTTP request headers we can use to change how we deliver page resources based on characteristics of a user's device and network connection. In this article, you'll learn all about client hints, how they work, and a few ideas on how you can use them to make your site faster for users.
When we measure loading performance, we often do so using testing tools that only describe performance from the perspective of the tester. If we want to measure loading performance from the user's perspective, we must rely on the Navigation and Resource Timing APIs.
New perf audits for preload, preconnect, GIFs, and more.
The Save-Data client hint request header available in Chrome, Opera, and Yandex browsers enables developers to deliver fast and light applications to users who have opted-in to 'data saving' mode in the browser.