<IfModule mod_deflate.c>  
#General Configuration settings: use ratio method and highest compression
DeflateFilterNote ratio
DeflateCompressionLevel 9

#Approach 1: Implicit ("Set") compression
## There are potential issues with compressing everything	
## It will for example send xml compressed to web services or flash
#SetOutputFilter DEFLATE
#SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.avi$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.mov$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.mp3$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.mp4$ no-gzip dont-vary
#SetEnvIfNoCase Request_URI \.rm$ no-gzip dont-vary

##Approach 2: Explicit ("Add") compression by mime-type

AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/x-httpd-eruby
AddOutputFilterByType DEFLATE text/html
# Or by extension
# AddOutputFilter DEFLATE html
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/atom_xml
AddOutputFilterByType DEFLATE application/x-javascript

# Implicit compression on the way in
SetInputFilter DEFLATE

# Explicit compression on the way in, there is no AddInputFilterByType
# AddInputFilter DEFLATE html

</IfModule>