Topic: Performance Page 5

When is Mobile Safari not Mobile Safari?

When it is AppleCoreMedia. Let me explain. I wrote recently about a quiz that we built that included HTML5 audio files. In addition to the volume problems already discussed, we encountered intermittent issues where the audio either would not… More

High Performance Web Sites (CS193H)

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 and for mobile websites /… More

We Have Disabled WP Super Cache

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 content adaptation that is specific… More

Mobile Device Detection Results

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 as part of our… More


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