First-Click Attribution is a performance measurement model in affiliate marketing that credits the first user click on an advertising link as decisive for the conversion. This means that the customer's first touchpoint with a marketing campaign receives full credit for the success. It helps to highlight and evaluate the impact of these initial contact points.

In affiliate marketing, it's often crucial to know which publisher first engaged the customer to set the right incentives and distribute commissions accordingly. First-Click Attribution focuses on this starting point of the user journey, providing clear insights into which channels or publishers reached new prospects first.

This model is especially useful when the focus is on acquiring new customers since it centers on the start of the customer journey. It preserves the importance of the first contact and supports planning and optimizing marketing campaigns aimed at gaining initial attention.

In summary, First-Click Attribution is a valuable method to clearly track and understand the beginning of a purchase decision. It ensures that the right publishers are recognized for bringing the customer’s attention to the product or service.