clarification on yslow rules

Posted by ooo on Stack Overflow See other posts from Stack Overflow or by ooo
Published on 2010-06-15T01:26:14Z Indexed on 2010/06/15 1:32 UTC
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html

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Performance

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expires

i ran yslow and i got a bad score on expires header:

Here was the message:

Grade F on Add Expires headers There are 45 static components without a far-future expiration date.

i am using IIS on a hosted environment. what do i need to do on my css or js files to fix this issue ?

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