Group items tagged

"WebPagetest will now expose any User Timing marks that a page records so you can use the same custom events for your synthetic test measurement as well as your Real User Measurement"

August is Speed Awareness Month, and performance experts throughout our community are contributing their perspectives. My post about must-have mobile optimization techniques just went live. Here's the intro... As you probably know, mobile users face unique performance challenges when it comes to implementing the strategies above.

En 2 ans, en quoi les attentes des usagers de l'Internet mobile ont changé ? Ils attendent moins et attendent des performances équivalentes à leurs ordinateurs. Par contre ils rencontrent moins de problèmes et sont moins enclins à aller voir ailleurs.

"Compuware APM Deep Transaction Management for PHP is the first solution in the market that combines User Experience Management (UEM), web server visibility, PHP deep-dive analysis, database access and external-call visibility all into one single solution, along with built-in performance analytics. It cuts through the complexity to provide full application visibility from a browser-click to the database and back, for all transactions, in real time 24x7. Compared to other PHP monitoring tools, Compuware APM's unique smart auto-detection of PHP pages makes it a snap to understand which page is causing what performance issues."

Web developers using high amounts of domain sharding to work around low connection per host limits in old browser should reconsider their number of shards for newer browsers. Anything over 2 is probably too much, unless most of your user base is using older browsers.

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

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 ?

1. oui, de la même manière que imgmin arrive à automatiser la recherche du meilleur taux de compression global... 2. oui également, c'est la technique utilisée par http://www.jpegmini.com, juge par toi-même.

Article synthétisant les mécaniques psychologiques de notre activité sur le Web. Oui, parce qu'on optimise avant tout pour l'utilisateur ; pas en premier lieu pour le référencement ;-)

Essential knowledge for making your web pages faster.

"In current implementations as of August 2012, no popular user agent pre-fetches resources that are subject to media queries until those media queries are satisfied. However, it seems like a more intelligent approach could be taken based on the liklihood that the media query may be satisfied at some point after a page has loaded. "