flash service

High_Performance_Web_Sites

Issue link: https://read.uberflip.com/i/1146286

Contents of this Issue

Navigation

Page 128 of 169

Amazon | 107 Amazon Amazon (http://www.amazon.com) is a relatively heavy page with a total page weight of 405K and 84 HTTP requests. Given the size and number of components in the page, the biggest performance improvement for Amazon would be to add a far future Expires header to their components (Rule 3). Only 3 out of 84 components have an Expires header. They use only one stylesheet and three scripts. The scripts are loaded one after the other, so it would be a simple improvement to combine them into a single HTTP request. The stylesheet and scripts should be gzipped. The three scripts are minified to a large degree, but further savings could be gained by removing all comments and extraneous carriage returns. Figure 15-4. http://www.amazon.com YSlow grade Page weight HTTP requests Response time D 405K 84 15.9 sec

Articles in this issue

Links on this page

Archives of this issue

view archives of flash service - High_Performance_Web_Sites