htaccess file compression and caching settings for Magento

gistfile1.txt

Update Expires time to increase Browser Caching

At the beginning of the <IfModule mod_expires.c> section replace

<IfModule mod_expires.c>

############################################
## Add default Expires header
## http://developer.yahoo.com/performance/rules.html#expires
  ExpiresDefault "access plus 1 year"

</IfModule>

with

<IfModule mod_expires.c>
###  START OPT  ###################################
## Update the expires headers to improve caching
## 
	  ExpiresActive On
	  ExpiresDefault "access plus 1 seconds"
	  ExpiresByType image/x-icon "access plus 2592000 seconds"
	  ExpiresByType image/jpeg "access plus 2592000 seconds"
	  ExpiresByType image/png "access plus 2592000 seconds"
	  ExpiresByType image/gif "access plus 2592000 seconds"
	  ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
	  ExpiresByType text/css "access plus 604800 seconds"
	  ExpiresByType text/javascript "access plus 604800 seconds"
	  ExpiresByType application/javascript "access plus 604800 seconds"
	  ExpiresByType application/x-javascript "access plus 604800 seconds"
	  ExpiresByType text/html "access plus 600 seconds"
	  ExpiresByType application/xhtml+xml "access plus 600 seconds"

</IfModule>
# END Expire headers

# BEGIN Cache-Control Headers
<ifModule mod_headers.c>
  <filesMatch "\.(ico|jpe?g|png|gif|swf)$">
	  Header set Cache-Control "max-age=2592000, public"
  </filesMatch>
  <filesMatch "\.(css)$">
	  Header set Cache-Control "max-age=604800, public"
  </filesMatch>
  <filesMatch "\.(js)$">
	  Header set Cache-Control "max-age=604800, private"
  </filesMatch>
  <filesMatch "\.(x?html?|php)$">
	  Header set Cache-Control "max-age=600, private, must-revalidate"
  </filesMatch>
</ifModule>

###  END OPT  ###############################

Enable Test File Compression

At the end of the <IfModule mod_deflate.c> section add

###  START OPT  ###################################
## compress files to improve site speed
## 
  <filesMatch "\.(css|js|x?html?|php)$">
    SetOutputFilter DEFLATE
  </filesMatch>

###  END OPT  ###############################