Impression fraud poses a serious problem for display ads in affiliate marketing because it inflates ad views without real user engagement, leading to wasted ad spend and skewed performance metrics. Fraudsters generate fake impressions through bots, hidden ads, or stacked placements, making it appear as though ads are being seen by users when they are not. In affiliate marketing, where commissions are often based on performance, such fraud undermines the integrity of tracking and attribution systems. Advertisers pay for exposure that yields no genuine traffic or conversions, reducing return on investment and damaging trust in affiliate partnerships. Additionally, impression fraud can mask the performance of legitimate affiliates, distorting campaign analysis and optimization. This not only wastes resources but also compromises the credibility and effectiveness of affiliate marketing as a whole.