.htaccess

Options +FollowSymlinks
AddEncoding gzip gz

RewriteEngine on
RewriteBase /

# compression stuffs
RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule ^(.*)$ $1.gz [QSA,L]

<Files *.css.gz>
    ForceType text/css
</Files>

<Files *.js.gz>
    ForceType text/javascript
</Files>

<IfModule mod_deflate.c>
  <FilesMatch "\.(css|js|xml)$">
    SetOutputFilter DEFLATE
  </FilesMatch>
</IfModule>

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

# disable the server signature
ServerSignature Off

# preserve bandwidth for PHP enabled servers
<ifmodule mod_php4.c>
    php_value zlib.output_compression 16386
</ifmodule>

# set the default character set
AddDefaultCharset UTF-8

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

# 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/javascript
AddOutputFilterByType DEFLATE application/x-javascript

# Or, compress certain file types by extension:
<files *.*>
    SetOutputFilter DEFLATE
</files>