Let’s say we want to measure the depth of we have an object with mixed nested arrays/objects like so:

This article explains how to use JavaScript modules, how to deploy them responsibly, and how the Chrome team is working to make modules even better in the future.

Tonino Jankov introduces Pingdom, YSlow and GTmetrix and a range of other tools for testing, debugging and fixing website performance.

Learn how to create an installable web application that follows the Progressive Web App (PWA) principles in this tutorial.

User focused observability for mobile and web. See how people experience the speed of your website, then identify and fix performance issues.

Single Page Apps are a popular approach to building web applications, but testing them in an end-to-end fashion is not simple; you need to…

WCAG 2.1 has officially been put in place as a standard but what does that mean? What was added? How does this impact my site or app? In this post we break down everything new in WCAG 2.1 and put in simple terms so you can walk away armed with the knowledge…

A step by step guide to understand the core concepts and build a first extension

This might be a good time to take stock of what you have in your designer's toolkit and see whether some changes might be in order. This list of 15 of 2018's top tools and resources should get you off to a good start.

Search Engine Land is the leading industry source for daily, must-read news and in-depth analysis about search engine technology.

After setting up and organizing files for a Symfony Flex project, Zoran populates the database with data to test application performance.

UX patterns like menus, sliders, layers & lightboxes, parallax effects, page-swipes, zoom effects, etc. are really just interactive animated layers. layerJS is a simple open source library that provides one simple universal concept to create such patterns…

Tonino Jankov covers the background, performance benefits and current implementations of the HTTP/2 protocol.