want to speed up your web site? This book presents 14 specific rules that will cut 20% to 25% off response time when users request a page. Author Steve Souders, in his job as Chief Performance Yahoo!, collected these best practices while optimizing some of the most-visited pages on the Web. Even sites that had already been highly optimized were able to benefit from these surprisingly simple performance guidelines. Chapter A: The Importance of Frontend Performance Chapter B: HTTP Overview Rule 1: Make Fewer HTTP Requests Rule 2: Use a Content Delivery Network Rule 3: Add an Expires Header Rule 4: Gzip Components Rule 5: Put Stylesheets at the Top Rule 6: Put Scripts at the Bottom Rule 7: Avoid CSS Expressions Rule 8: Make JavaScript and CSS External Rule 9: Reduce DNS Lookups Rule 10: Minify JavaScript Rule 11: Avoid Redirects Rule 12: Remove Duplicate Scripts Rule 13: Configure ETags Rule 14: Make Ajax Cacheable Chapter 15: Deconstructing 10 Top Sites High preformance websites