title: external site using my css and image files, can I block this
body: <p>each month many gigabytes of traffic on my site is being consumed by various sites, mostly in italy according to my stats.  On further review of my raw access logs, they have built in direct reference links to css and png files in my site.  I can just rename them but that wont stop them accessing a page in my site to get their full urls and keep accessing them.</p>
  
  <p>Is there a way to block access to css and image files in my site unless they come from the same domain, somehow?</p>
  
  <p>Regards</p>
  
  <p>Greg J</p>