Hehe! Great hack after playing with it for a day, pissed off 1 or 2 people in the process but who cares. Security should always be the #1 priority.

this is exclude alot of users who browse inside companies or schools who must use proxies

That is true! This hack is not for everyone.

Yeah this hack is for people with forums like mine (www.bnfreak.com) with lots of kids that knows some things about computers and try to be funny by registering through a proxy and spamming. Anyways, doesn't work anymore with this ^_^

And if you wanna test it, just get a proxy (www.stayinvisible.com is a good site for them), Avant Browser is the most idiot-proof browser for proxy support :-D and well, try visiting your forum, you should see a "No Proxy" error message.

I signed up for and am surfing your site via a proxy right now and it's not doing anything to me.

Read your PM.

Like I told you, this hack does not work on High Anonymousity proxies.

it only works on proxies that return the HTTP_VIA variable, which contains every but High Anonymous proxies.

I added this and a lot of my regulars complained that they couldn't get on so I removed it.

I need a hack like this, but is there really no way to detect a high anonymity proxy?
I guess, the most trolls will use high anonymity proxies :(

Could anyone help me to modify this hack, so that high anonymity proxies are blocked too?
Isn't it possible to identify a high anonymity proxy on the basis of missing private header information?
( or just any proxy? )

Great Hack This Will Work Great For ME!