What's new in PageSpeed Insights
Learn about the latest in PageSpeed Insights to help you better measure and optimize your page and site quality.
Addy Osmani
Eng Manager working on Chrome and Web Platform
Optimizing resource loading with Priority Hints
Priority hints indicate the relative importance of resources to the browser. They can enable optimal loading and improve Core Web Vitals.
Best practices for using third-party embeds
An overview of techniques to load popular third-party embeds efficiently.
Bringing instant page-loads to the browser through speculative prerendering
Learn more about speculative prerendering in the browser and how to participate in Chrome origin trial.
Introducing Aurora
A collaboration between Chrome and open-source web frameworks & tools
Evolving Cumulative Layout Shift in web tooling
Starting today, a change to CLS has been rolled out across a number of Chrome's web tooling surfaces including Lighthouse, PageSpeed Insights, and Chrome UX Report.
Optimizing Web Vitals using Lighthouse
Finding opportunities to improve user-experience with Chrome's web tooling.
It's time to lazy-load offscreen iframes!
Browser-level built-in lazy-loading for iframes is here
Speed up navigations in React with Quicklink
Automatically prefetch in-viewport links with quicklink for React single page applications.
Tools to measure Core Web Vitals
Your favorite developer tools can now measure the Core Web Vitals.
Optimize Cumulative Layout Shift
Learn how to avoid sudden layout shifts to improve user-experience
Optimize First Input Delay
How to respond faster to user interactions.
Shopping for speed on eBay.com
Optimizing the performance of eBay's sites and apps for a faster user experience.
Accessibility tips for web developers
Improving accessibility makes your site more useable for everyone.
Browser-level image lazy-loading for the web
Built-in lazy-loading is finally here!
Are long JavaScript tasks delaying your Time to Interactive?
Learn to diagnose costly work preventing user interaction.
Speed at scale: what's new in web performance?
Learn about three new web performance launches from I/O 2019.
