Ad blocker blocks next to nothing on some sites

[McTesch]

McTesch last edited by

As the heading already says. I'm using the inbuilt adblocker on Opera and it seems to me, that - at least on this particular site: www.spiegel.de - it actually doesn't block anything:

There's hardly any blank spot on this page but it's almost totally surrounded by ads. Although it says it has 28 ads and 38 trackers.
I'm not against ads generally, as sites have to make a living. But that's an annoying mess here. Or they are as a leading news site in Germany are particularly clever in overruling blocking.