Gzipping Css And Js Files

I'm using YSlow to improve the speed of my site, and I'm having trouble with the 'compress components with gzip' grade. I have this in my .htaccess file: SetOutputFilter DEFLATE A

Solution 1:

Do you have AddType lines for .css and .js? It's pretty hard for Apache to automatically figure out the types by content alone -- they both look a lot like C code.

Try adding these lines to your .htaccess...

AddType text/css .css
AddType application/x-javascript .js

Solution 2:

Added, and it didn't help

Works for me, I'm now getting Content-Type: text/css and gzip encoding, which wasn't happening before due to the missing type mappings. That's something that should really be fixed server-wide though; it is a very broken server that cannot serve stylesheets and scripts with the right type.

Incidentally you should use text/javascript for scripts, for proper browser compatibility. application/javascript is proposed as ‘better’ for various nitpicking technical reasons, but it doesn't have the support so you can ignore that. x-javascript is long gone.