<IfModule mod_rewrite.c>
   RewriteEngine on
   RewriteCond %{HTTP_USER_AGENT} !^.*(FeedBurner|FeedValidator) [NC]
   RewriteRule ^feed/?.*$ http://feeds.feedburner.com/username [L,NC,R=302]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?domainname\.com [NC]
RewriteRule \.(png|css|zip|gif|jpe?g)$ - [NC,F]
</IfModule>
 
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
 
# END WordPress