PHPrbl 0.4

PHPrbl is a quick and easy tool that keeps clients using open proxies away from your site in order to reduce referrer spam.
Ever had those annoying referrer spammers ruin your websites statistics? If you run a big website, or a weblog, you must be getting fed up with this blasted referrer spam.
Youre not alone, I have this problem as well and got fed up with the whole thing. After weeks of playing with the idea of blocking referrer spammers using rewrite rules, I got fed up wit the high amount of energy it would demand of me just to block IP addresses that seemed to be open proxies anyway.
Enhancements:
- Streamlined the code based on input given by Steven Lynn. Fewer queries are now used to do the same thing. Thanks!
- New feature: keywords checking; referrers are now matched to keywords given by the site admin. If a match occurs, the client will be blocked. (For myself this feature has already proven to be very, very effective)
- First start of an admin area for PHPrbl, for now, only the ability to add and removed keywords is present. Whitelisting and local IP blocklist management will be added soon.