I have created an ad network, everything is completed but I want to detect fraud clicks so I think it's a good idea to block OR return null request to proxy and Tor users for preventing fraud clicks. I don't want to show my ads on proxy and Tor users.
I have already tried Determine If User Is Using Proxy code but it's not working quite well. If I am blocking X_FORWARDED_FOR
then it will block Opera Mini and Some Other browsers also.