even faster web sites

Rules:

1.Make fewer HTTP requests

2.Use a content delivery network

3.add an expires header

4.Gzip components

5.Put stylesheets at the top

6.Put scripts at the bottom

7.Avoid CSS experssions

8.Make JavaScript and CSS external

9.Reduce DNS lookups

10.Minify JavaScript

11.Avoid redirects

12.Remove duplicate scripts

13.Configure ETags

14.Make Ajax cacheable