Today looking to my adsense stats, I'm supprised: very high number of impressions in compare to normal. Problem is I don't know where are these impressions from, because I have all adsense ads channelized, but there is no channel in report. The impressions still increasing, recently there is no click, but i'm afraid what will happen next. What I have to do? How can I determine where these impressions from? Please, help. Thanks.
I sometimes get clicks and impressions from sites I sold years ago...I even notified them (the site owner) about it but since I don't know what page they are from (and seemingly neither do they), they keep coming I wouldn't worry about it. You can email Google about it just in case it causes a problem in the future but its not neccesary in most cases.
Do you use blogger by any chance ? If you do every time you preview your blog it shows up as an impression but not in a channel. And you can't add a google domain to a channel. I use to have this problem a lot. Hope that helps.
No, I have no blog. I have set up adsense in two sites + DP only. Every ads has channel. I don't think that someone uses my code. Really I don't know where are from.