How to block referral spam completely

[Gaurav]

How to block referral spam completely by help of csf?
I don't need google analytics filter advise, as I have tried it and it just block the stuff showing in GA and not actually preventing the request hitting the server and chewing my resources.
I need some solid way to prevent these sites at CSF level (if exists). Thanks.

sitevaluation . org
100dollars-seo . com
trafficmonetize . org
websites-reviews . com
4webmasters . org
webmaster-traffic . com

ADMIN: This is not a spam post, Im seriously hit by these ref spam and I need help. Please don't delete this post.

[ricardomatoso]

Hi,

I have same problem. Somebody else can help us?

[ricardomatoso]

The link below, is taught how to block via .htaccess file, but I'd like block using CSF.
http://blog.raventools.com/stop-referrer-spam/

[dvk01]

csf blocks by IP address. Look up the IP addresses of the sites you wish to block and add those IP addresses to CSF block