Think push ads, pop traffic, and incentivized placements, since they often produce more suspicious clicks and lower conversion quality. Measuring approval rate shifts means watching which sources suddenly see higher rejection or delayed validation. Tracking conversion-to-approval gaps shows where traffic looks good on the surface but fails compliance checks. Logs of lead flow act like heatmaps, revealing where quality drops along the funnel. These patterns help affiliates rebalance spend toward SEO, email lists, or native ads that pass stricter filters more consistently.