block specific domain against hotlinking

.htaccess

# Methode 1
# block specific domains
<IfModule mod_rewrite.c>
RewriteEngine On
# match example.org/com etc...
RewriteCond %{HTTP_REFERER} ^http://([^.]+\.)?example\. [NC]
# rewrite to specific file
RewriteRule \.(gif|jpg|bmp|jpeg|png)$ http://example.org/bad.jpg [R,NC,L]
</IfModule>

# Methode 2
# block specific domains
<IfModule mod_rewrite.c>
RewriteEngine On
# match example.org/com etc...
RewriteCond %{HTTP_REFERER} ^http://([^.]+\.)?example\. [NC]
# rewrite send HTTP 403
RewriteRule \.(gif|jpg|bmp|jpeg|png)$ - [R,NC,F,L]
</IfModule>

# Methode 3
# block specific domains
<IfModule mod_rewrite.c>
RewriteEngine On
# match example.org/com etc...
RewriteCond %{HTTP_REFERER} ^http://([^.]+\.)?example\. [NC]
# rewrite to specific file
RewriteRule \.(gif|jpg|bmp|jpeg|png)$ http://example.org/bann.php [R,NC,L]
</IfModule>

bann.php

<?php
    header('WWW-Authenticate: Basic realm="Le hotlinking c\'est mal !"');
    header('HTTP/1.0 401 Unauthorized');
?>