Group items tagged

"Bad performance stems from a lack of attention and commitment performance within an organization-not from whether or not the site is responsive."

Etude de cas Performance Web sur le site de  Wired

"Submit a URL to generate a node map of all of the requests on the page. Rapidly identify what third-parties are on your site, where your transmitted bytes are coming from and how slow your domains are !"

Les outils webperfs

"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 start point), analyze the pages using performance best practices rules, and output the result as HTML-files or JUnit XML. You can see real life examples of analyzed sites here." Possibilité d'intégrer cet outil dans une plate-forme d'intégration continue (jenkins) : http://sitespeed.io/documentation/#junit

Retrouvez une sélection de liens sur le thème des performances Web de la semaine passée. Au sommaire, 11 liens sur : CSSitis, brotli, Services Workers, Chrome reloads, AMP et votre site au régime.

This week begins face to face meetings at the IETF on how to approach HTTP 2.0 and improve the Internet. How the industry moves forward together on the next version of HTTP - how every application and service on the web communicates today - can positively impact user experience, operational and environmental costs, and even the battery life of the devices you carry around.

My previous blog post, Cache them if you can, suggests that current cache sizes are too small - especially on mobile. Given this concern about cache size a relevant question is: If a response is compressed, does the browser save it compressed or uncompressed? Compression typically reduces responses by 70%.