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WordPress 2.8 introduced some constants and bits and bots that nominally make certain kinds of compression of JavaScript and CSS possible. This post looks at JavaScript compression and explains what is possible, and what is…
Warning: Technical WordPress post ahead! Overview: Really Getting JavaScript Into the Footer Quoth the WordPress Version 2.8 feature list: – Improvements to the script loader: allows plugins to queue scripts for the front end…
There’s an interesting article on mobiforge.com that talks about the pitfalls of using CSS sprites for mobile web content. While there are several reasons why sprites may not be a good idea, two stand…
As many of you know, we’re fairly enamored with the YSlow techniques for understanding and evaluating web performance for web applications. We have successfully used the information to improve the user-perceived performance for “traditional” websites…
Hey there. It’s been a year since we first opened our mobile browser concurrency test for people to use, so I thought I’d take a quick moment to thank everyone who has taken the…
To improve your WordPress performance we have previously advocated using the WP Super Cache plugin to enable pages served from a static cache. This works quite well unless you are doing some form of…
In a previous post I presented the performance numbers for mobile device detection using WURFL and Device Atlas. Our numbers were generated on a data set consisting of 1,572 unique user agents we collected…
This has probably been done to death elsewhere, but since I’ve been playing around with WURFL and Device Atlas for mobile device detection, I thought I’d publish some comparative performance numbers. As part…
Hi there! Just a quick note for people following our ongoing WordPress performance discussion. Leon Chevalier has released a new version of his PHP Speedy WordPress plugin. This update fixes the CSS compression bug…
With the release of WordPress 2.7 we’ve begun upgrading our customer sites to use this new version. As part of that effort, we needed to ensure that our hard won performance improvements were…