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.htaccess for cookie-less image domain

Here is a choice collection of .htaccess directives that I use when hosting images on a subdomain. When doing so, it’s best for performance to make sure the domain or sub-domain is “cookie-less”, so there is no time wasted sending cookie data back and forth between the server and client. Other optimizations are included to enhance performance.

AddDefaultCharset UTF-8
ServerSignature Off
Options -Indexes
FileETag none

<IfModule mod_headers.c>
	Header unset ETag
	Header unset Cookie
	Header unset Set-Cookie

<IfModule mod_rewrite.c>
	RewriteEngine On

<IfModule mod_expires.c>
	ExpiresActive on

<FilesMatch "\.(ico|jpg|jpeg|jpe|png|gif)$">
	ExpiresDefault "access plus 2 years"

<IfModule mod_expires.c>
	ExpiresByType image/x-icon "access plus 2 years"
	ExpiresByType image/ico "access plus 2 years"
	ExpiresByType image/gif "access plus 2 years"
	ExpiresByType image/jpg "access plus 2 years"
	ExpiresByType image/jpe "access plus 2 years"
	ExpiresByType image/jpeg "access plus 2 years"
	ExpiresByType image/png "access plus 2 years"

These directives assume that only images will be hosted on the domain/subdomain. If other types of resources are available, you may need to modify the current directives to add support.

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