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Asked: 2026-05-11T03:19:08+00:00

trying to add an ExpiresDefault ExpiresByType to content on my website so that way

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trying to add an ExpiresDefault ExpiresByType to content on my website so that way it is cached. I use cachebusting in the URL (a revision number in the path) for Javascript, CSS, and images so that way I can set it to forever for these mimetypes. I have the following rules set up in apache httpd:

  ExpiresActive On   ExpiresDefault 'access plus 1 minutes'   ExpiresByType image/gif 'access plus 10 years'   ExpiresByType image/png 'access plus 10 years'   ExpiresByType image/jpeg 'access plus 10 years'   ExpiresByType image/jpg 'access plus 10 years'   ExpiresByType text/javascript 'access plus 10 years'   ExpiresByType text/css 'access plus 10 years'

Then when I go to my website http://karmerd.com and use httplive headers to look at the headers I get what I think should be the correct Expires for css: Expires: Sun, 03 Feb 2019 17:52:48 GMT

But I use Yahoo’s Yslow firebug extension and it’s still giving me an F for not using Expires! Am I doing something wrong? I’m also using gravatars on my site, but they have Expires set. Seems like everything has an expires. Is it Yslow or me?

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1 Answer

  1. Your javascript files are being sent out as application/x-javascript, so aren’t getting a far-future Expires header.

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