PUBLIC MARKS with tags "Performance web" & "conception web"

open source project It lets you test a webpage (via an URL) and detects performance and front-end code quality issues. This is done by loading the webpage via PhantomJS and collecting various metrics and statistics with the help of Phantomas. These metrics are categorized and transformed into scores. It also gives in-depth details so developpers can correct the detected issues.

navigateur créé spécialement pour les développeurs.

Everyone can contribute here ! Docs, Blogs, Talks, Analyzers, Analyzers API, Benchmark (CSS-JS), Bookmarklets, CDN, Image Optimizers, Loaders ...

Instead of embedding the full Youtube video player, Google+ only displays the thumbnail of a YouTube video and then overlays a play icon over the video so the image resembles a video player.

bLazy is a lightweight lazy loading and multi-serving image script. It’s written in JavaScript why it doesn’t have any dependencies for 3rd party libraries like jQuery. bLazy is working in all modern browser including IE7+.

Lightway version of Lazy Load with support for serving high-resolution images to devices with retina displays

JShrink is a php class that minifies javascript so that it can be delivered to the client quicker.

CssMin is a css parser and minfier. It minifies css by removing unneeded whitespace character, comments, empty blocks and empty declarations. In addition declaration values can get rewritten to shorter notation if available.

How to lose weight (in the browser) And what if we got together a bunch of experts who work on large sites to create a definitive front-end performance guide?