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A similar moan to this was raised a few weeks ago but I'd like to see if anyone is still having problems:
The revenue I am earning per click has dropped dramatically since the beginning of November. My traffic has doubled in the same timespan and I'm getting several hundred clicks a day (Clickthrough % remains the same)
However, the average earning per click has dropped from a consistent average of between 10 and 15 cents to an average of 3-5 cents. It has now been like this for nearly 3 weeks and everyday gets worse.
I have two sites contributing to this - both with totally different subject matter.
Obviously this is a concern, as I've worked very hard to win large increases in traffic.
Any ideas? Please tell me this is a (big, long) blip that will end soon!
Also, keep in mind that when many publishers target a "high value" keyword, the number of impressions goes up, so the value of each impression to the advertiser will usually go down. (Google now shows more than six million hits for "mesothelioma", a rare disease which claims about two thousand new victims in the U.S. per year. Do the math.)
Across the board, I've been "stable" for the past few months, but there have been some significant swings when I look at the channel data for particular subjects.
The problem isn't universal, though--in fact, I've been surprised by how well my CPM has been holding up at a time of year when I'd expect a major slump.
I removed second largest channel a month ago and am seeing much better EPC overall and thus even better earnings than before. If you remove the worst CTR.EPC channel, you may see a boost in overall earnings.
This is what confuses me. I always thought that EPC was standard for an ad. Are you saying that EPC changes with how many times an ad is shown?
Then three days ago, my earnings and traffic shot up, way up, I saw that all of a sudden many pages that had ranked on 2nd or 3 rd page were now in #2 or #3 position in SERPs.
Then yesterday dropped back to 'normal' BUT, funny thing, just now I was doing some searches for a remodeling project I am involved in, I was suprised to see my own pages in top positions. After ck'ing out some of the other sites for the info I was seeking, I backed up and clicked my own links, just to let Google see that someone had chosen my pages worthy of clicks--and surprize-surprize, the adsence ads on my pages were so totally off topic it was amazing. This off: swiming pool surround surfaces pages with ads for cameras and driver software.
Previously they have had very ON TOPIC ads--I have seen them many times.
So now my task is to figure out what words might be triggering these off topic ads, and make changes. Point here is: ck your pages to be sure the ads are relevant. If not, that could easily explain your noticible drop in revenue.
One other interesting Google thing this morning. While searching for swim pool surround surface info, I noticed all the SERPS were Australian sites. I am using a computer with a Deep South, USA IP. So I added -australia to my search terms string, what does Google do, but show me all ads from UK sites!
By "remove a channel", do you mean removing the adsense ads from those pages that are IN THE channel?
Or do you mean simply removing the "channel code" from the Adsense ads?
I'm sure that Google compares all the pages that you are running Adsense on. Why would switching channels around affect earnings in any way?
Does Google reward high CTR pages by paying more money to them? Sure.
Or, does Google only reward only high CTR pages that are IN PARTICULAR channels? Doesn't seem logical.
I tried to say too much with too little content.
What I mean by that is :
1. If you know (through channel) that one of your sites or channel has very low CTR and EPC, you can have higher overall earnings by removing the adsense from the channel or site. From another discussion, there were speculation about how the EPCs were decided. One of the ideas was that Google will have an overall evaluation of EPC LEVEL "PER ACCOUNT".
So I said I would test the idea a month ago and removed the code from the worst performing site and it sent my sites overall EPC up by 30% (back to six month ago). I was seeing overall decrease in CPC for this year little by little.
I belive removing the code from the worst site helped boost the overall EPCs and TOTAL earnings. (The site had about 20% of my total impressions and less than 5% of clicks with less than 5% of earnings). If the experiment is the reason, I am happy to lose 20% of my impressions and 5% of clicks for 30% higher EPC.(and more total earnings due to higher EPCs)
Well, of course, there might be something else as you would argue. FYI, I haven't changed much of my sites for the last 6 months. So I am assuming Google Adsense changed for my other sites.
However, it does seem likely that Google's "smart pricing" algorithm is based, in part, on data gathered through conversion tracking, since:
1) Smart pricing is intended to "automatically adjust the price of clicks across the Google Network based on their expected value to the advertiser" and...
2) It's hard to imagine Google using guesswork to determine that "expected value" when conversion-tracking data is available.
I'm going to assume, therefore, that--at the very least--Google uses conversion-tracking data to make broad assumptions about expected value to the advertiser (e.g., "clicks from forums tend to convert poorly," "clicks from product reviews tend to convert fairly well," or "clicks from highly targeted ads tend to convert better than clicks from less targeted ads."). That was the implication of what Google said last April, when publishers were told: "For example, a click on an ad for digital cameras on a web page about photography tips may be worth less than a click on the same ad appearing next to a review of digital cameras."
It's also possible that, where available, conversion-tracking data is used to adjust "smart pricing" discounts for specific publishers up or down from the baseline numbers. (Note that I say "possible," not "true" or even "likely.")
I do not know how Google guestimate the value of the clicks from a specific publisher, it is not based on the conversion tracking tool (At least for this industry). Google may use it for smart pricing with data from smaller advetisers. I don't believe it is a good representitive pool for the industry. If Google uses the data anyway because they cannot get it otherwise, the Smart Pricing is not "Smart". Maybe that's why webmasters here are crying about the fluctuation(decrease) of EPCs...