Web performance is a brilliant, but sometimes complex world. Concatenating and minifying files, optimizing images, setting up caching, these are all tasks that can lead to great performance wins. We know that this stuff is good for performance but actually putting these strategies into practice can sometimes be tedious. A team at Google recognized this problem and came up with the idea of creating a web server module that would take of a whole bunch of performance optimizations for you; thus mod_pagespeed was born.
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