Can't figure out: Adsense has low impressions compared to Google Analytics

My adsense shows almost one fifth page impressions than Analytics in two different content sites. Both Wordpress, on the same server, using same theme and set of plugins.
When I try an incognito from various browsers, sometimes I see a white blank space instead of ads. So here is what I tried:

- Refreshed couple of times, sometimes ads show, actually when I try it fails around one third of the time and I see the white block. So it is not because the page has no relevant content for ads (it is a news site btw).
- Checked source, the script is there, no changes.
- Tried disabling JS minify, combine functions in the cache
- Tried disabling cache alltogether

Can't figure what's happening here. Anyone knows what might be up?

Adblock I guess. It's normal that you'll see more page views in Analytics than in AdSense.

If you see a blank space instead of ads, then there are no ads to show at this time. Nothing suspicious.

Thought about that and checked some stats today, according to a report 30% of people used ad blockers in 2019.
4/5th of all my visitors using adblockers still seems unlikely to me. And I am not using an adblocker when I get the white block.

What about time on website and bounce rate?

MisterXYZ said:

What about time on website and bounce rate?

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around 60-90 seconds in both, one has 70% bounce rate, the other %50.

I guess the people with adblock wouldn't see your ads. And 30% from "a report" is just an estimate, some demographics would use it more than others. I use adblock, my father doesn't.

Talked to someone that has a news site with 500K visitors per month, he said this is normal because Google is not filling each page with ads, he got that too but his ad show ratio is 70%, mine is around 30%.

yherrliche said:

I guess the people with adblock wouldn't see your ads. And 30% from "a report" is just an estimate, some demographics would use it more than others. I use adblock, my father doesn't.

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I get that, but having both websites (two different languages and addressing different geographies) with almost the same amount of disadvantage feels a bit strange.