They have been putting thousands of scam adverts on our website for some time. Think "you have been looking at xxx and must pay a $100 fine" type popup nonsense. Hosted on the following websites:
azurestaticapps.net
azurewebsites.net
herokuapp.com
ondigitalocean.app
digitaloceanspaces.com
netlify.app
Google doesn't allow you to block these domains, because they consider them "TLDs" (the scammers use a new subdomain every day eg abcdefg.herokuapp.com). The scammers get banned and return the next day with a new account and subdomain (repeat every day). Therefore we cannot stop them. It's bizarre and baffling. But Google Adsense had to go.