Anti-leeching: Require HTTP_REFERER or not?
I provide some downloads on my site. I don't want other webmasters hotlinking to the downloads because it'll waste too much of my bandwidth.Right now I'm setting httpd.conf such that if the HTTP_REFERER is not from my site, then it'll deny the download. But people with download accelerator programs are having trouble.
Should I perhaps allow all downloads that have blank HTTP_REFERER? Will that cause a lot of leeched bandwidth in your experience?