Direct model overview
AdSense for Platforms (AFP) is a highly customizable enterprise product designed to give content platforms and CMS/site building solutions the rails to natively integrate ads monetization across their solutions.
AFP Direct lets you monetize your platform’s content including user generated content and sites run by your users. Sub-AdSense accounts are intended to be created for each of your users, allowing you to isolate traffic from one user into one sub-account. This allows AdSense to localize spam and policy enforcement to the sub-account, keeping your main platform account in good health and standing from a policy perspective, as Google does not serve ads for users who don’t pass checks.