# References:
# http://www.g-loaded.eu/2008/05/10/use-mod_deflate-to-compress-web-content-delivered-by-apache/
# http://xnme.exofire.net/2008/05/21/speed-up-your-website-quick/
# http://httpd.apache.org/docs/2.0/mod/mod_deflate.html

<IfModule mode_deflate.c>

  AddOutputFilterByType DEFLATE text/html text/css text/plain text/xml application/x-javascript
  DeflateCompressionLevel 9

  # Netscape 4.x has some problems...
  BrowserMatch ^Mozilla/4 gzip-only-text/html

  # Netscape 4.06-4.08 have some more problems
  BrowserMatch ^Mozilla/4\.0[678] no-gzip

  # MSIE masquerades as Netscape, but it is fine
  # BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

  # NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48
  # the above regex won't work. You can use the following
  # workaround to get the desired effect:
  BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

  # Make sure proxies don't deliver the wrong content
  Header append Vary User-Agent env=!dont-vary

</IfModule>