I don't understand this. I've tried all I can to fix this problem, and still getting no closure. I have a website with adsense that gets a fair amount of visitors a day. Approx 1000-2000 visitors per day. I noticed that in the morning here (Eastern Standard Time) and afternoon it starts out with a high eCPM...then as the evening and night starts coming it goes lower and lower and lower until it usually ends up at nearly half of what it was at day time. Why is this happening? I setup an ad tracker on my site to track what ads were being clicked. I compared the different times and I there's no real difference in the ads that are being clicked at day and at night. The CTR doesn't drop either. Anybody with a similar experience or with any advice?
It definitely depends on your market. For instance, for obvious reasons, that happens with my proxy network. Lately though, traffic has continued through the night, and not stopped, which I am pleased about.
I'm not sure if I understand. eCPM is the average revenue based on 1000 visitors. If I have 1000 visitors in the morning and 0 at night, eCPM should stay the same. It wouldn't drop because of less visitors at night.
It will drop because of less clicks. I guess my post wasn't helpful in that regard.. You're probably going to get a lot more visits at night, simply because people have more time. I bet a majority of people are browsing at school or work during the weekdays and have high exit rates, often blindly clicking on ads. A way you could test this theory is watch your eCPM consistency between day and night this weekend. Also, AdWords has a timed ad option, doesn't it? Maybe advertisers find less competition in the morning or something...
Well then that would pretty much rip apart any existing argument. Just for the sake of argument, let's assume that the night means what is night for the majority of visitors.
chatmasta, I already said that the CTR remains the same throughout the entire day. Sometimes it even goes up at night. The amount of clicks or visitors is DEFINETELY not the issue. There are only 2 possible reasonings, and these are CPC in day vs night, or something on Google's end. It is hard to determine CPC via an adtracker that shows only what ads somebody clicks. Although I have seen no "major" changes in ad clicks at night vs the morning (in regards to what advertisements people click at both times). Not sure what it is...but I'm on a mission.
I analyzed a few more of my statistics. I think I have come up with possibly a theory on why the eCPM drops at night. I noticed I have more type-ins for my site in the day time. It is possible that I am getting a higher CPC with Google's system when visitors type the domain in directly. Most my visitors that come during the evening/night are refered from Search Engines. It is possible that the visitors that click ads refered from Search Engines aren't considered to be as high quality or "convert" as much, and therefore Google has a way to give a lower CPC to those. I think this is possible and requires alot more further testing.
Some advertisers hit the limit of their daily budget then drop out before the day is finished. The guys paying the most per click will drop out first, all other things being equal.