Any method or idea that gets posted here seems to end up with people wanting to know when or how they should go about blanking the referrer. But for most of us it's a bad idea. So how do you know if it's a bad idea for you? Well ask yourself a few questions. Have you been successful with CPA before? Would it be okay to lose your earnings in the event that you are caught? Do you know, in a technical sense, what blanking the referrer is doing? If you answered no to ANY of these questions then you should avoid blanking the referrer and simply be honest with your traffic, no matter what the method. If a traffic source converts for the CPA company, they will be fine with it. If it doesn't, then you aren't looking to do well in the first place. So rather than thinking 'I wonder if I should blank the referrer' or 'Is the AM going to be okay with this?' just simply ask the AM. If you are open and talking with your AM you are much much less likely to get banned or penalized even if you do break the rules. Asking the AM if a method is allowed or if a traffic source is allowed not only builds trust but you'll also find that they are more liberal than you think. So in what cases should blanking the referral be used? If you want to implement a method that is obviously against the rules of course. However if it is your first time this will likely lead into your account getting frozen or earnings removed. In conclusion. If you are established enough that you can try a few times and fail then by all means go for it. However if you are new to CPA and this seems like the 'easy' thing to do then think again. You'll likely be disappointed. P.S. Even if you choose to blank the referrer still talk to your AM. People who hide are the most suspicious. Ask them if a traffic source is allowed, if they say no then blank the referrer if you think it is worth it to still go through with.