How two simple steps improved the responsiveness of Wikipedia's mobile site
If you're not already using performance budgets to prevent regressions, you should be! Here's how to get started.
Largest Contentful Paint (or LCP) is a major web performance KPI which is still a new concept for many web developers since it became a ranking factor just recently. In this article, Eloïse Martin provides an overview of the best practices for the integration and optimization of an LCP image.
Performance chapter of the 2022 Web Almanac covering Core Web Vitals, with deep dives into the Largest Contentful Paint, Cumulative Layout Shift, and First Input Delay metrics and their diagnostics.
Identify, compare, analyze and fix your Core Web Vitals scores to boost web performance of your sites. These tools will help you to do just that.
Instant Vitals is an open source library to identify parts of your website that are degrading your Web Vitals scores.
This article covers CSS-related techniques for optimizing Web Vitals.
Images have also been a key part of the web. They communicate ideas instantly, but they are also a lot heavier than text to load. This means that it’s essential to get loading and displaying them right, if you want to give your users a fantastic first impression. An excerpt from Addy's new book (also, check a free PDF preview).
How are Core Web Vitals measured? How do you know your fixes have had the desired effect and when will you see the results in Google Search Console? Let’s figure it out.