Google’s March 23 update to its Gambling and Games certification process has changed the shape of search acquisition in gambling. Accounts now need to demonstrate “good policy health,” and Google is also tightening the rules around who can actually certify a domain. Free-hosted sites, unrelated domains, third-party root subdomains, and second-level domains not owned and operated by the advertiser are out. That sounds administrative until you remember how many affiliate setups still rely on flexible, patchwork infrastructure.  

The more important takeaway is that search traffic in gambling is becoming less tolerant of weak operational setups. SiGMA’s recent coverage of the 2026 affiliate environment makes the same point from a broader angle: iGaming is moving away from naive front-end CPA thinking and toward a more mature model where quality, process discipline, and sustainability matter more. In that environment, search is still valuable, but only for teams that can keep their assets clean and their structures stable.  

For affiliates, this means the old “launch first, fix compliance later” mindset is getting harder to defend. Search traffic is not disappearing. It is becoming more selective. And in a market where Google is effectively deciding who looks trustworthy enough to keep buying, structure is starting to matter almost as much as bidding skill.