High Performance Websites. Essential Knowledge for Frontend Engineers
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Author(s): S. Souders
Publisher: O'Reilly
ISBN: 978059652307
Format: softback
146pp
Price: £18.50, $29.99
Review Date: 06 December 2007
Review: For most webpages, less than 20–30% of the end-user response time is spent getting the html documents from the web server to the browser. To make a dramatic improvement in the response time of your web pages you need to focus on the remaining 80–90%. Here Steve Sounders, Chief Performance Yayoo!, lays the groundwork for understanding web pages and gives 14 rules for making them faster. These include: making fewer HTTP requests; using a content delivery network; adding an expires header; using Gzip components; putting stylesheets at the top; putting scripts at the bottom; avoiding CSS expression; making JavaScript and CSS external; reducing DNS lookups; minifying JavaScript; avoiding redirects; removing duplicate scripts; configuring ETags; and making Ajax cacheable.