After Yslow "A": 20 more best practices.

After Yslow "A": 20 more best practices.YAHOO! Exceptional Performance team 日前提出了新的 20 點 performance recommandation.

1. Flush the buffer early [server]
2. Use GET for AJAX requests [server]
3. Post-load components [content]
4. Preload components [content]
5. Reduce the number of DOM elements [content]
6. Split components across domains [content]
7. Minimize the number of iframes [content]
8. No 404s [content]
9. Reduce cookie size [cookie]
10. Use cookie-free domains for components [cookie]
11. Minimize DOM access [javascript]
12. Develop smart event handlers [javascript]
13. Choose <link> over @import [css]
14. Avoid filters [css]
15. Optimize images [images]
16. Optimize CSS sprites [images]
17. Don't scale images in HTML [images]
18. Make favicon.ico small and cacheable [images]
19. Keep components under 25K [mobile]
20. Pack components into a multipart document [mobile]