Hello I am using drupal 7 and yslow tool in ff.
it shows me grade B
Grade F on Make fewer HTTP requests
I also enabled cache . but i don't know how it work.
Grade F on Add Expires headers
There are 75 static components without a far-future expiration date.
i also made changes in .htacess file still not working .. Please let me know
Anybody have idea please let me know.