AddType application/rss+xml rss
AddOutputFilterByType DEFLATE application/rss+xml text/css application/javascript text/html

# Turn on Expires and set default expires to 3 days
ExpiresActive On
ExpiresDefault A259200

# Set up caching on media files for 1 month
<FilesMatch "\.(ico|gif|jpg|jpeg|png|pdf|mov|mp3)$">
  ExpiresDefault A2419200
  Header append Cache-Control "public"
</FilesMatch>

# Set up 2 week caching on commonly updated files
<FilesMatch "\.(xml|txt|html|js|css|rss)$">
  ExpiresDefault A1209600
  Header append Cache-Control "private, must-revalidate"
</FilesMatch>