I noted a huge drop in Adsense Page RPM (-75%). A user of my page told me that when he clicks on an advertisement, a button appears "Visit site" inside the ad. I thought it's a joke, but this is indeed explained by Adsense, but I have not received any notification about it in my account.
[support.google.com ]

What I tried:
- I blocked some ads manually, the "Start now", "Download now" style
- I made sure that our automated tests do not request ads from Adsense
- I've put the "Advertisement" text above the ad
- I increased padding to the content area to an almost ridiculous amount

This helped after a while for two weeks and the button disappeared, but now I'm in again.

Anyone any suggestion? SaaS business.