Hi,
On 31.10.2022 I modified the layout design of my webpages. I moved a satellite map and a photo slideshow/carousel from the bottom of the page to the first and second position of the page. These two moved elements are each one with one 300x250 ad (in mobiles) and with one 728x90 (in desktop)
As happened in the previous layout version, these first and second positions are after an introduction (two paragraphs), that places the first 300x250 mobile ad, well below the fold. Additionally (and as happened as well in the previous layout version), the ads are loaded when the user starts to scroll down.
However, I've seen that the ratio impressions/pageviews in these last days, from a 30-day-average 6.4 to 5.5 in mobile. The ratio increased from 5.5 to 5.6 in desktop.
At the same time, the 'Average viewable time' increased in mobiles from 17.5 seconds to 21 seconds. And from 21.7 seconds to 23 seconds in Desktop.
The increase of the 'Average viewable time' makes sense for me, since I understand that visits takes more time to view the satellite map and the photos (in both mobiles and desktop). But I do not understand the drop in the impressions.
Any similiar experience is welcome. Thank you.