Not much to tell, you can use the code bellow and paste to the top of your .htaccess
## EXPIRES CACHING ##
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 application/pdf “access 1 month”
ExpiresByType text/x-javascript “access 1 month”
ExpiresByType application/x-shockwave-flash “access 1 month”
ExpiresByType image/x-icon “access 1 year”
ExpiresDefault “access 2 days”
## EXPIRES CACHING ##
A bit of explanations:
Example:
ExpiresDefault “access plus 2 months”
This sets the expiry date of the file 2 months into the future from the current time. The following values can be used to specify the time period:
- years
- months
- weeks
- days
- hours
- minutes
- seconds
eg. ExpiresDefault “access plus 14 days”
To add expires header to the image, CSS, javascript files add the following to your .htaccess file
#Expire Header
<FilesMatch "\.(ico|jpg|jpeg|png|gif|js|css|swf)$">
ExpiresDefault "access plus 2 hours"
</FilesMatch>
or
# Expire images header
ExpiresActive On
ExpiresDefault A0
ExpiresByType image/gif A2592000
ExpiresByType image/png A2592000
ExpiresByType image/jpg A2592000
ExpiresByType image/jpeg A2592000
ExpiresByType image/ico A2592000
ExpiresByType text/css A2592000
ExpiresByType text/javascript A2592000
A2592000 means 1 month in the future (60*60*24*30=2592000)
Brain Knowledge 