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I've read a few times that the Adsense advert that is displayed first contains the highest paying advertisers/clicks.
The reason I ask is that the first Adsense block on my site has a lower CTR (around 1.5%) than the second Adsense block (around 4.5%).
I'm just wondering if this has ever been proven.
...that the Adsense advert that is displayed first contains the highest paying advertisers/clicks...
So, an ad paying $0.20 with a CTR of 10% should be higher in the list than one paying $1.00 with a CTR of 1%
...in theory... :-)
What do I have to do in Adwords to influence that?
I can't give you step by step without creating a campaign, which I don't want to do at the moment, but when you go in to create a site targeted campaign, you have the option to pick the sites you want, and if they've enabled it, choose the spot on their site where you want your ad to appear.
Google put out a couple of months ago that the way to influnce ATF / BTF was to put those exact letters as the ad block description. I now put the description in e.g. 350x250 ATF (or BTF if appropriate). At the time I did that my income jumped big time. Coincidence? Who knows, but I sure am not going to remove the ATF!
More people are clicking on the ads in your second block, which are "possibly" lower paying than the first block.
Google encourages higher bids to get a higher position on web pages so the ads appear in order from highest paying to lowest. I suppose google could scramble the results after chosing which ads appear but since we can't click we can't check that out. It would be a lot of work but I can't think of a benefit.
I said "possibly" lower paying. You need to keep in mind that there are several different kinds of ads.
#1 - large banners
#2 - small banners
#3 - text links etc.
Each is seperate. If both your blocks have text links then you have double the text links and some will pay less. If you use one of type of ad you guarantee the highest paying from each block.
I've no idea but from what I'm seeing yes (today is my best Sunday on record too).
Only Google know for sure but it makes good business sense to me.
Hoping this thread may be of use to someone, worked for me. It all helps :)
...has it been proven?
I can confirm that in the general ad auction, our system will target the highest-paying ads to the ad unit implemented first in your HTML, working down through the auction results to fill in the rest of your ad units in order.
Presumably a high paying advert could therefore be placed below the fold and below a higher ad block.
If advertisers are targeting only specific placements, those ads will compete to show only in those spots. As a result, yes, it could turn out that those ads are higher-paying than ads at the top of the page. But keep in mind that in any case, these site-targeted ads would be bid on a CPM basis.
Does that make sense?
google_ad_client = "bla";
google_ad_width = 300;
google_ad_height = 250;
google_ad_format = "300x250_as";
google_ad_type = "text_image";
//2007-05-05: 336 x 280 adsense ATF
google_ad_channel = "blabla";
google_color_bg = "bla";
google_color_link = "bla";
google_color_text = "bla";
google_color_url = "bla";
That line starting // was put there by Google to correspond with the ad description when I set it up. Apparently the "ATF" means to the advertiser that the ad will appear Above The Fold. That's what Google told me. How they check that ad actually does appear ATF I have no idea.
Does that help any?