http://developer.yahoo.com/yslow/

Performance Grade: F (58)
D 1. Minimize HTTP requests
n/a 2. Use edge computing
F 3. Add an Expires header
F 4. Gzip components
A 5. Move CSS to the top
B 6. Move JS to the bottom
A 7. Avoid CSS expressions
n/a 8. Inline in home pages
B 9. Minimize domains
C 10. Minify JS
A 11. Avoid redirects
B 12. Remove JS duplicates
F 13. Turn off ETags

有改進的空間