Performance

20+ experts share their advice and mistakes they see when it comes to web performance and which optimizations you should spend time prioritizing.

In order to be able to improve website performance, you must first be able to pinpoint where possible issues are originating from.

Front-end performance guide for beginners to optimize website visitor traffic, higher conversion rates and best front-end performance tools

Web developers know what they’re doing in terms of optimizing a website for page speed, but is it enough in Google’s eyes? When it comes to mobile loading speeds, your website can always be faster. Find out how.

Let’s make 2019... fast! A front-end performance checklist (PDF/Apple Pages/MS Word), with everything you need to know to create fast experiences today.

All-in-one service for website speed test, web performance monitoring and website analysis (speed, SEO, quality, security). Web performance has never been so easy.

In this article, we uncover how PageSpeed calculates it’s critical speed score. It’s no secret that speed has become a crucial factor in…

A performance playground for JavaScript developers. Easily create and share test cases and run cross-browser benchmarks to find out which code snippet is most efficient.

A free book on modern image optimization techniques. Formats, decoders, techniques for efficient compression and more are covered.

Data can be prohibitively expensive, especially in developing countries. Chris Ashton puts himself in the shoes of someone on a tight data budget and offers practical tips for reducing our websites' data footprint.

Learn how browsers convert HTML, CSS and JavaScript into websites while you experiment with Chrome Developer Tools to measure and optimize website speed!

Web site created using create-react-app

:pencil: A curated list of Web Performance Optimization. Everyone can contribute here! - davidsonfellipe/awesome-wpo

In theory, performance, accessibility, and inclusive design all have similar goals: Provide the best, most consistent experience to all people using the minimal amount of resources. In practice, this often falls apart. Product creators define what it means to be performant from where they stand, which is typically from places of privilege with unseen biases, struggling to find true empathy with their users. Through this talk, we'll examine how to build conscientiously, looking within to resist systematic problems in order to create more truly performant, accessible, and inclusive systems fo...

How fast can it go?

🎮 The only Front-End Performance Checklist that runs faster than the others - thedaviddias/Front-End-Performance-Checklist

Where should you be focusing your efforts when it comes to improving your site’s performance? Here’s a reusable framework for figuring it out.

This post is a complete guide on website speed optimization in 2019. It describes best practices and walks you through their implementation.