Dr Dave’s Referrer Karma is about the most useful anti-referrer spam tool Ⅰ have seen so far. No more fiddling with .htaccess, no more redirecting spammers to their own pages. This simple php script keeps blacklists and whitelists, bans spammers when they are hitting your page too often, it also checks the reffererring URL for some indication of your site’s URL or even if it exists. For me it has reduced the referrer Spam Ⅰ am getting to almost nothing at all – down from up to hundreds per day.
If you are looking for one simple solution – this is it. You only need MySQL as well as PHP – and off you go. Wrongfully detected „real surfers“ are not blocked out but just sent to a page where they are told about the problem and then can access the site after a mouseclick.
Rating: 10⁄10.
[Update 2005–09–12]
The Adblock Filter Set has moved to a new address!
This folder contains a huge list of Filtersets that you can import into Adblock. The lists are updated almost daily – thus ensuring an almost perfect anti-ad-coverage of the main internet sites.
The function of this anti-spam list is really easy. It contains the following:
A list of domains that are know to provide spam and advertismenet banners
A list of URL snippets, folder names and file names which are known to be used for advertisement and offensive images.
Generic expressions which filter out most known ad formats.
As a consequence you will be able to use adblock with firefeox without actually needing to manually block everything yourself. Enjoy ad-free web surfing without hassle and all that is for free!
But also remember: there are many sites out there which are useful and which are free – as their content creation is somewhat sponsored by adverts. Make sure from time to time to turn off your adblock on those sites and do click some adverts or buy something from their sponsors!
An interesting take on this fact can be read at coffeegeek.com.
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