How to prevent domain spoofing?

Publishers can prevent domain spoofing by adding Ads.txt, partnering with ad verification companies, reconciling bids and reported ad impressions, working with trusted partners, and reporting suspicious activity.

How to identify domain spoofing?

Publishers can identify domain spoofing by monitoring their ad inventory, reconciling bids and reported ad impressions, and working with ad verification and measurement companies to detect and prevent advanced domain spoofing types.