Laura Lemay has posted a nice review of tactics you can use to combat referrer spam. This is the type of spam where the evil spammers try to get their clients’ URLs into your web traffic reports. They particularly target sites which use scripts that display referrers to individual pages right on the page. Unfortunately, I’ve used such things in the past so I’m on the target list quite often. Really vile domain names get posted to my logs and make it more difficult to get useful info from my site statistics. I’m going to look at how I can implement some of the stuff in Laura’s post this weekend.