A very strange difference between GA and Adsense

[dolcevita]

Very strange.
Namely, yesterday I had about 20% less page views. Statistics show that UK page views are lower by as much as 83%, and impressions by 80%. From 4,500 to 800.

But what confuses me is the fact that Google Analytics shows that the number of visits from the UK was 23% higher yesterday.

Now it is difficult for me to understand how it is possible for GA to show more visits compared to last week by 23%, and at the same time Adsense to show fewer page views by 83% and Impressions by 80%.

[nickZ]

GA and analytics don't use the same data sources.
I your case as ain most Matomo is better.

[dolcevita]

How? Unique visitor is unique visitor.
I would understand that the difference is 20-25%, but such a drastic one that goes above 80% is absolutely incomprehensible.

[nickZ]

Well have a look here
Many say

Google Search Console and Google Analytics 4 are both free tools that measure the performance of your website. GSC shows you how your website is doing in Google. GA4, on the other hand, contains data about how visitors behave on your website.

They both display averages and that is not very good to begin with.
As I said before use matomo.

How? Unique visitor is unique visitor.