johnhamman - 2:58 am on May 4, 2002 (gmt 0) Just a thought.
I disagree with you on the ip/UA test. For cloaking DNS is great but its slow on some programing languages and depending on the server your running the DNS on it may not return a accurate reading. Yes agents can be faked but if you use them with IPs you can be safe. Heres a link [webmasterworld.com...] Check out my psudocode. Now that code should work extremly good as long as you have an updated IP and useragent list. Ip checking runs great and its fast. Now what is even more Ideal is to have a script that logs any questionable Ip and useragents and records them for you to later DNS check them. Then if they return a spider or whatnot, you would add them to your cloak script.
Just a thought.