Cut & Paste Referrer Checker II
Description: The complete opposite of Version 1, Referrer Checker II *blocks* access to the current page from visitors derived from specific URLs. Useful, for example, if a questionable site has a link to your site, and you do not wish their visitors to gain entry.
Directions: Simply insert the below into the <head> section of the target page. Configure the to-be-blocked URLs inside: