978 articles on Performance.
With the growing importance of Core Web Vitals, site owners and developers increasingly focus on performance and key user experiences. Google provides many tools to help evaluate, optimize, and monitor pages, but users are often confused by the different sources of data and how to use them effectively. This guide proposes a workflow combining several tools and clarifies where and how they make sen
At Google IO 2018, we presented a roundup of tools, libraries and optimization techniques that make improving web performance easier. Here we explain them using The Oodles Theater app. We also talk about our experiments with predictive loading and the new Guess.js initiative.
In this guide, aimed at web developers who want to benefit from WebAssembly, you'll learn how to make use of Wasm to outsource CPU-intensive tasks with the help of a running example.
Speed matters, but what exactly do we mean by it? What does it mean to have a fast site?
How web workers and service workers can improve the performance of your website, and when to use a web worker versus a service worker.
Ensure your site loads fast with a step-by-step guide to defining thresholds for performance metrics that are meaningful for your site.
What impact does @property have on the performance of your CSS?
Get data to select your Baseline target with Google Analytics data—now faster and easier.
Explore common misconceptions about optimizing Largest Contentful Paint (LCP) by looking beyond image optimization and considering factors like Time to First Byte (TTFB) and resource load delay.
Today we are launching Learn Accessibility—the next in our series to help get you up to speed with modern web development.
Today we are launching Learn HTML—the next course in our series to help get you up to speed with modern web development.
Today we are launching Learn Performance—the next course in our series to help get you up to speed with modern web development.
Today we are launching Learn Privacy—the next course in our series to help get you up to speed with modern web development.
LCP and INP are now Baseline Newly available as of December 12, 2025.
Today we have launched Learn Images! In our newest course learn about image formats, compression, responsive images, and performance.
Read about the latest Lighthouse updates announced at Chrome Developer Summit 2019.
Navigation preload lets you overcome service worker startup time by making requests in parallel.
Read about the biggest web graphics launch since WebGL. WebGPU is supported across major browsers, bringing unparalleled performance to the web.