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Real data :
i compared both channels (same number of impresseiosn) and here is the conclusion.
by adding images to ads.
Click: increased by 40% (I am not kidding)
Page CTR: increased by 1.1%
Page CPM: Dropped by 17%
Earnings: Dropped by 35%
The only difference was that my current ad format with images is 250*250 and before that i was using 336*280
What could be the reason?
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