Affiliate marketing operates on a performance model — you pay partners a commission when they drive a conversion. The appeal is obvious: you only pay when it works. The measurement problem is that "works" is defined by whoever owns the attribution model, and the default is last-click. In a last-click model, the partner who touches the buyer immediately before conversion gets 100% credit — regardless of whether any other marketing drove the initial interest, product discovery, or purchase intent. Coupon and cashback sites are structurally optimized to intercept buyers who are already in the cart, already decided, moments before checkout. Under last-click, they capture commissions on conversions that were happening anyway.
The incrementality question in affiliate is harder than it sounds: how many of these commissions are you paying for conversions that would have happened without the affiliate touch? The honest answer, for coupon-heavy affiliate programs, is often 40-60%. Incrementality testing affiliate channels requires running holdout experiments — turning off specific publishers for a test period and measuring the change in conversion rate. Most brands don't want to run this experiment because they don't want to see the number. The ones that do typically restructure their affiliate program significantly: reducing coupon site commissions, increasing investment in content and review affiliates, and adding attribution windows that require earlier funnel engagement.
Coupon and cashback affiliates look excellent on last-click attribution and deliver poor incremental lift. Content and review affiliates look mediocre on last-click and deliver strong incremental lift. Most affiliate programs are structured backwards.
Open affiliate networks drive volume through thousands of publishers — including low-quality sites, deal aggregators, and brand-unsafe placements. Managed partnership programs have fewer publishers, better quality, and require more relationship management per dollar.
The line between affiliate and influencer marketing is blurring. Platforms like Impact.com handle both — but the management approach, commission structure, and attribution model for a macro influencer are fundamentally different from a coupon site.
Partnership automation platform covering affiliate, influencer, commerce content, and B2B partnerships. Full-funnel attribution across all partnership types, with fraud detection and contract management built in.
Enterprise affiliate and partnership management platform. Focuses on performance partnership programs with AI-powered partner discovery, dynamic commissioning, and advanced attribution modeling.
One of the largest affiliate networks. 3,800+ advertisers and 70,000+ publishers, with strong retail and ecommerce coverage and deep integration with major ecommerce platforms.
Global affiliate network with strong international coverage and premium publisher access. Known for quality publisher relationships in travel, finance, and retail verticals.
Mobile measurement and partner marketing platform. Tracks app installs, in-app events, and post-install attribution across affiliate and paid channels for mobile-first advertisers.
Mid-market affiliate and influencer tracking platform. Integrates directly with Shopify, WooCommerce, and BigCommerce for ecommerce brands. Simpler setup and pricing than enterprise platforms.
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