Sitespeed.io is an open source tool that helps you analyze and optimize your website speed and performance based on performance best practices. It will collect data from multiple pages on your website (crawling from a startpoint), analyze the pages using performance best practices rules, and output the result as a couple of HTML-files. Run ./sitespeed.io …
Tag Archives: performance
Writing Fast, Memory-Efficient JavaScript
∞.js
∞ is a UITableView for the web: it speeds up scrolling through long lists and keeps your infinite feeds smooth and stable for your users. It is small, battle-tested, and highly performant. Just compare the demos without ∞.js and with ∞.js, and be amazed UPDATE 2016 Want to use Infinity in production? I’d recommend using …
Improving performance on twitter.com
To improve the twitter.com experience for everyone, we’ve been working to take back control of our front-end performance by moving the rendering to the server. On top of that, we asynchronously bootstrap a new modular JavaScript application to provide the fully-featured interactive experience our users expect. Improving performance on twitter.com →