"FastDom works as a regulatory layer between your app/library and the DOM. By batching DOM access we avoid unnecessary document reflows and speed up layout perfomance dramatically."

background is more performant that background-color ? Is that true ?

Présenation de Lara Swanson (Etsy) sur les drivers de la Performance Web.

Le prochain grand chantier de la performance Web, c'est d'en faire rentrer les bonnes pratiques dans la contribution CMS, ou du moins d'informer les contributeurs des impacts de leurs actions, car les CMS ne sont pas nécessairement lents mais peuvent le devenir très vite.

Monitoring de performance et de qualité

Optimizing the repaints : "60fps scrolling using pointer-events: none"

Nouvelle proposition dans le monde du RUM, rejoint SpeedCurve dans la cour des Dashboard de Perf Web. Ici, focus sur le monde de la Presse.

Neuroscience de la performance Web Desktop et Mobile.

"JS Manners is a tool to score scripts that 3rd parties (people or companies outside your dev team) provide for you to put on your page."

"PhantomJS-based web performance metrics collector and monitoring tool"

"Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information)."

"Sitespeed.io is an open source tool that helps you analyze your website speed and performance based on performance best practices and metrics. It collects data from multiple pages on your website, analyze the pages using the rules and output the result as HTML or JUnit XML."

List of various Web Performance Tools

"The abandonment rate for mobile shopping carts is 97%, compared to 70-75% for desktop carts. We also know that performance is a significant abandonment factor. Slow pages are the number one user complaint around mobile sites, ranking even higher than site crashes. And when faced with a bad mobile shopping experience, 43% will go to a competitor’s site next."