As the World Cup heads into the final matches, new IAS media quality data highlights an interesting nuance for digital advertisers. While raw metrics show that invalid traffic (IVT) and Made for Advertising (MFA) rates actually decreased after kickoff, predictive modeling reveals they remained higher than what previous trends were forecasting. The tournament’s massive traffic surge is keeping low-quality inventory active, making always-on optimization an important strategy for brands to consider throughout the final matches.