Refactoring Trulia's UI with SASS, OOCSS, and handlebars. My slides from jsconf 2013. Lot's of yummy details about the performance improvements we were able to make. By Nicole Sullivan

Les outils webperfs

Scripts tiers & appels induits

"platform closely monitors end-user performance and makes sure your content is always delivered by the fastest CDN. "

ImagePicker et ImageOptim sont présentés ; pour récupérer et optimiser les images.

70% of tablet users expect a site to load in under 2 seconds.

Imgmin applies established best practices and statistical means toautomatically optimize JPEG filesize for each unique image without sacrificing quality, resulting in significant site-wide latency reduction and bandwidth savings which improves user experience and saves money.

1. Est-ce automatisable ? 2. Le gain est t'il réellement intéressant ?

La BDD est téléchargeable à l'adresse : http://httparchive.org/downloads.php. Il est possible de faire ses propres requêtes. Les données sont stockés depuis 2010. L'échantillon regroupe 70 000 urls différentes (principalement US).

"10 jQuery versions loaded from Google's "

Outil Google délivrant une analyse performance de votre site