Coder Survival Guide

Any delay longer than 50 milliseconds and visitors sense that a page is unresponsive. Tracking and reducing your page’s Total Blocking Time is vital to avoiding a poor user experience.

Learn how to embed service design thinking in your organization, and change the way your teams work. Benefit from the collected knowledge in the book or book an executive school. Make use of 54 free method descriptions, directly available for download.

Dans cet article, nous analysons la notion de "besoin" et questionnons les démarches Centrées Utilisateurs

De la trinité du design au diagramme de design éco-responsable, découvrez comment l'évolution de ce modèle fondamental peut rediriger le design de services

Découvrez le design de service, une approche systémique, collaborative et centrée sur l'utilisateur !

Software quality is more the result of a system designed to produce quality, and not so much the result of individual performance. That is: a group of mediocre programmers working with a structure designed to produce quality will produce better software than a group of fantastic programmers working in a system designed with other goals.

We’ve open-sourced MemLab, a JavaScript memory testing framework that automates memory leak detection. Finding and addressing the root cause of memory leaks is important for delivering a quality us…

In this blog, we are going to learn the HTTP Request vs Http Long-Polling vs WebSocket vs Server-Sent Events(SSE).

Implement a straightforward framework to plan and deliver performance initiatives at your company.

Volkswagen make clean diesel engines. Like really clean diesel. Or so they claimed. Their Clean Diesel technology was a key selling feature of some of their most popular vehicles. Then in 2015, it all fell apart when the US Environmental Protection Agency found that real world NOx emissions from their vehicles were forty times higher than in laboratory tests. To make it worse, this was not an accident. Volkswagen had programmed their engine management system to identify when a vehicle was going through an emissions test and modify engine performance to reduce emissions during the testing cycle. This was not only misleading, it was illegal. The deception affected 11 million cars worldwide and became known as the Dieselgate scandal, probably the best known example of corporate greenwashing.

Persuasion is getting a bad rep: too often is associated with manipulation and considered incompatible with ethics. Is this really true, though? We often use persuasion in everyday life: I bet that…

The favicon was a total experiment, the result of a bit of serendipity and luck.

When implementing performance fixes, it’s imperative that you measure the right thing—but what is ‘right’?

In the ’90s, Microsoft created a cartoon paperclip that it quickly retired. Its developers never imagined the virtual assistant would become a cultural icon.

Constat : avec l’âge nos applications prennent du poidsAvec l’accroissement des possibilités de stockage offertes par les smartphones et l’augmentation de la bande passante disponible, nos apps n’ont cessé de “prendre du poids” au cours du temps.

It is 2023. XHTML is dead and buried. HTML is a "living standard" with billions of users. So what kind of idiot would want to build a website using XML? Me. I am that idiot. Last year, I launched a "web page" which didn't use HTML. Called, appropriately enough, "YOU DON'T NEED HTML!" That (ab)used [...]

Large DOM sizes can be a factor in whether interactions are fast or not. Learn more about the relationship between DOM size and INP, and what you can do to reduce DOM size and other ways to limit rendering work when your page has lots of DOM elements.

Find out how the GOV.UK One Login programme is using green IT to make our service as sustainable as possible.

A holistic way of exploring the digital tech sector's impact on global sustainability using the Doughnut Economics framework

La webPerf, c’est bien, mais en connaissant toutes les subtilités de la création de notre page c’est mieux \o/. Pendant 45 minutes, nous voyagerons à travers...

Keep your website online, boost performance and improve your digital experience to increase customer conversions.

Waterfaller, this FREE real-time tool leads web professionals through a step-by-step guidebook to boost your website's Core Web Vitals

CivicActions Accessibility site is an open project for our team members and those who work for digital inclusion.