A 9% drop in eCPM for web display inventory and a 5% drop in eCPM for web video instream inventory were observed by Opti Digital in Western Europe in 2023.
As in the previous analysis, there is a significant difference between 2021 and 2023, due to an exceptional year in 2021. However, we can see that the drop in eCPM is only about 5% in 2023, which shows that this format remains a privileged option for advertisers.
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