i have a standard html-website for desktop devices and a mobile html-website for mobile devices. if my server detects a mobile browser, it displays the mobile website.
on both desktop and mobile website i recently started to display two ads per page each, that is two 728x90 banners on my desktop site and two 320x50 banners on my mobile site.
for testing purposes, i can display both websites on both devices. here are the results of my test:
- desktop website on desktop: both 728x90 banners display correctly
- desktop website on mobile: both 728x90 banners display correctly
- mobile website on desktop: both 320x50 banners display correctly
- mobile website on mobile: only the first 320x50 banner displays correctly, the second is blocked out
why is that? the adsense tos seem to be totally unclear about that. correct me if i'm wrong, but the number of allowed ads on a mobile site is three, just as on the desktop iirc. so why won't more than one ad display on a mobile site?
i suspect it is because of the specific banner format (320x50 called "mobile banner") which has special display capabilities (alternation) when displayed on a mobile device but obviously isn't capable to display more than once per page on a mobile device. either a technical issue or google simply doesn't want the mobile banner to appear more than once per page. is it forbidden to display more than one of these mobile banners?
which doesn't really make sense to me, because the other (bigger) banner formats display properly if you have more than one of them on your mobile page - as seen in my test.
any experience with that?
[edited by: moTi at 6:33 pm (utc) on Apr 2, 2013]