The 2021 holiday shopping season is projected to drive an incremental 9% in US retail sales year over year to reach $1.12 trillion—the strongest growth rate since 1999. This surge in holiday spend will spread across both brick and mortar and ecommerce driven by consumers' increase in discretionary income amidst ongoing supply chain issues. Marketers can easily take advantage of this revenue opportunity by maximizing the value of their in-person and digital presence through the partner channel—optimization that requires brand safety to be effective.