#
# Sources:
# http://stackoverflow.com/questions/7704624/how-can-i-use-gzip-compression-for-css-and-js-files-on-my-websites
# http://codex.wordpress.org/Output_Compression
# http://www.perun.net/2009/06/06/wordpress-websites-beschleuinigen-4-ein-zwischenergebnis/#comment-61086
#

<IfModule mod_deflate.c>
# Insert filters / compress text, html, javascript, css, xml:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/js
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE image/svg+xml

# Drop problematic browsers
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
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>


## EXPIRES CACHING ##
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 year"
ExpiresByType image/jpeg "access 1 year"
ExpiresByType image/gif "access 1 year"
ExpiresByType image/png "access 1 year"
ExpiresByType text/css "access 1 month"
ExpiresByType text/html "access plus 1 minutes"
ExpiresByType text/plain "access plus 1 months"
ExpiresByType application/pdf "access 1 month"
ExpiresByType text/javascript "access plus 1 months"
ExpiresByType text/x-javascript "access 1 month"
ExpiresByType application/x-javascript "access plus 1 months"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresByType image/x-icon "access 1 year"
ExpiresDefault "access 1 week"
</IfModule>
## EXPIRES CACHING ##


#Alternative caching using Apache's "mod_headers", if it's installed.
#Caching of common files - ENABLED
<IfModule mod_headers.c>
<FilesMatch "\.(ico|pdf|js|css|gif|png|jpg|jpeg|ico|txt|html|htm)$">
Header set Cache-Control "max-age=2592000, public"
</FilesMatch>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|css|xml|gz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>
</IfModule>


<IfModule mod_gzip.c>
  mod_gzip_on Yes
  mod_gzip_dechunk Yes
  mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$
  mod_gzip_item_include handler ^cgi-script$
  mod_gzip_item_include mime ^text/.*
  mod_gzip_item_include mime ^application/x-javascript.*
  mod_gzip_item_exclude mime ^image/.*
  mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>