Top Ad Inside a Google AdSense Unit Is The Highest Paying Ad

July 3, 2007 by  

Rustrybrick of Search Engine Roundtable points out to a thread at WebmasterWorld forum that confirms what many people have suspected for a long time.

A member asks if the AdSense ad that appears first in an ad unit is the highest paying one in term of earning per click (EPC).

Someone from AdSense confirms that in a general ad auction, their system will target the highest paying ads to the ad unit and shows them first, working down through the auction results to fill in the rest of you ad units in order.

As an example, someone who clicks the first ad below will earn me more money than the next one immediately below it and so on. However, keep in mind that for site-targeted ads, i.e. ads that appear on my site because advertisers specifically target my site, the auction would be on a CPM basis.

So those paying the highest CPM will appear first in the ad unit.


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1 Comment »

Comment by Lorna
2007-07-05 17:20:04

That’s an interesting find, though I’m not really surprised. It’s always up to the readers then whether they want to click on the first ad; still, the odds will be higher for the first ad to be clicked, if the ad fits both the target reader and the content of the site showing the ad, e.g. your readers, like me, may be more inclined to click on The Next New Millionaires instead of House For since the ad fits your niche a.k.a us readers.

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