In Part I of this series on optimizing websites for Pagespeed we optimized a complex site using mod_pagespeed, some manual tweaks and WPOptimize Speed by xTraffic. We boosted the mobile Pagespeed score from 58/100 to 86/100, and the desktop score from 75/100 to 93/100. In Part II of this series we’ll explore how to speed optimize the server response of a WordPress site with caching plug-ins.