About a year ago we stopped displaying ads with yahoo due to a large number of Search Partners that was sending us crap traffic and making us pay for it. When this new blocked domain tool was added we were excited that we could once again look into display ads with Yahoo.
So we started displaying ads for a few search terms in order to block search partners. I have been looking at our logs daily (every day we displayed ads) to block search partners of yahoo. These sites in the past have never sent us profitable traffic. We did this for about 1-2 months until mysteriously instead of getting the sites that displayed our ads we started just getting more blank referrers.
I define blank referrers as entries from our logs that contain the parameters we have put in the destination URL (the parameters that tell us what campaign/keyword the traffic is coming from and that its from yahoo PPC), but donít tell us the website that the traffic came from (basically the website that displayed the ad).
I have been going through our logs and determining what was causing these blank referrers. On average about 30-40% comes from yahoo, 30-40% comes from blank referrers, and 20-40% comes from Search Partners. This was huge jump from the previous 0-10% blank referrers, 30-40% yahoo, and 50-60% Search Partners.
I guess my questions are three fold.
Do other people have the same problem with blank referrers when displaying with Yahoo?
Is there any way to fix this as we are confident our servers are querying the data correctly?
What are people's overall numbers for blank referrers over all their traffic and/or conversions?