Adaptive loading with service workers
Modifying the assets that you serve to users based on their device and network conditions.
Blog
Our latest news, updates, and stories for developers
Getting started with Trust Tokens
Trust Tokens is a new API to enable a website to convey a limited amount of information from one browsing context to another (for example, across sites) to help combat fraud, without passive tracking.
Boldly link where no one has linked before: Text Fragments
Text Fragments let you specify a text snippet in the URL fragment. When navigating to a URL with such a text fragment, the browser can emphasize and/or bring it to the user's attention.
How to file a good browser bug
Telling browser vendors about issues you find in their browser is an integral part of making the web platform better!
Protect your resources from web attacks with Fetch Metadata
Prevent CSRF, XSSI, and cross-origin information leaks.
Tools to measure Core Web Vitals
Your favorite developer tools can now measure the Core Web Vitals.
Web Animations API improvements in Chromium 84
Orchestrating animations with promises, performance improvements with replaceable animations, smoother animations with composite modes, and more.
Best practices for measuring Web Vitals in the field
How to measure Web Vitals with your current analytics tool.
Empowering payment apps with Web Payments
New web standards for frictionless payment experience on the web.
Android payment app developers guide
Learn how to adapt your Android payment app to work with Web Payments and provide a better user experience for customers.
More variable font options for the macOS `system-ui` font in Chromium 83
Catalina brings a new united variable system font to macOS.
Defining the Core Web Vitals metrics thresholds
The research and methodology behind Core Web Vitals thresholds
Get things done quickly with app shortcuts
App shortcuts give quick access to a handful of common actions that users need frequently.
What's New in Lighthouse 6.0
New metrics, Performance score update, new audits, and more.
Wake Lock API case study: 300% increase in purchase intent indicators on BettyCrocker.com
Nothing is worse when cooking with a mobile device than its screen turning off in the middle of a recipe step. Learn how cooking site BettyCrocker.com used the Wake Lock API to prevent this from happening.
Preparing for AppCache removal
Chrome 85 removes support for AppCache by default. Most developers should migrate off AppCache now, and not wait any longer.
Persistent storage
Persistent storage can help protect critical data from eviction, and reduce the chance of data loss.
How CommonJS is making your bundles larger
Learn how CommonJS modules are impacting the tree-shaking of your application
Optimize Largest Contentful Paint
A step-by-step guide on how to break down LCP and identify key areas to improve.
Optimize First Input Delay
How to respond faster to user interactions.
Optimize Cumulative Layout Shift
Learn how to avoid sudden layout shifts to improve user-experience
Why you need "cross-origin isolated" for powerful features
Learn why cross-origin isolation is needed to use powerful features such as SharedArrayBuffer, performance.measureUserAgentSpecificMemory() and high resolution timer with better precision.
Profiling Web Audio apps in Chrome
Learn how to profile the performance of Web Audio apps in Chrome using about://tracing and the WebAudio extension in Chrome DevTools.
