I think I finally have comment and trackback spam under control, so next up on my list is referer spam. I have tried the .htaccess solution that Tom Sherman mentions in his post below (go read the whole thing, he offers up a well-thought out proposal to the problem) but I am still getting specious referer traffic.
From Tom Sherman’s blog:
jotsheet: Proposal for a solution to referrer spam: Using MT-Blacklist and other blacklists to filter spamming URLs
Referrer (or referer) spam has become a serious problem in the blogosphere. We need an intelligent way to eliminate this growing nuisance. I’ve thought about and researched this for the past few days, and below I offer a proposal for a technological solution to this problem. It requires programming, and I am not a programmer, so I welcome suggestions, corrections, and improvements to this proposal.
I hope that this blog entry can serve as something of a starting point for information about referrer spam as well as a sandbox for exchanging ideas about methods of curbing or eliminating it.