Hello Janh, thank you for the explanation. We were unaware your system will failover for banner ads to text ads in case there is no banner and therefore registering more impressions, thus lowering your eCPM based on those impressions.
We re-calculated the eCPM based on Ad Server stats instead of the stats registered in your network. We did this for all 3 networks.
The results are interesting. In the case of the PornerBros NTV-2 ad spot, the Ad Server stats registered approximately 18.5M impressions each. The eCPM for Ero-Advertising (0.0482) came out the winner at 3% over AdXpansion (0.0467) and 30% over ExoClick (0.0371).
In the case of the HardSexTube NTV-3 ad spot, making the same comparison using ad server stats, the eCPM for AdXpansion (0.0291) came out the winner at 42% over ExoClick (0.0205) and 67% over EroAdvertising (0.0174).
Using this methodology, we will revise the comparison numbers we've posted on our website. It's not in our best interest to present anything but the truth as our objective is still to encourage people to test for themselves and share the results.
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