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Why Last-Click Attribution

Understand why last-click is the fairest attribution model and how it rewards the affiliate who actually closes the sale.

Emil Klitmose

Written by Emil Klitmose

Updated recently

What is Attribution?

Attribution is how we decide which affiliate gets credit when a customer makes a purchase. If a customer clicked multiple affiliate links before buying, who should earn the commission?

There are two main models: first-click (the first affiliate to refer them) and last-click (the most recent affiliate). Revshare uses last-click attribution.

First-Click vs Last-Click

First-click attribution: The first affiliate who sent the visitor gets credit, no matter what happens afterward.

Last-click attribution: The most recent affiliate who sent the visitor gets credit. If a new affiliate link is clicked, they replace the previous one.

Day 1: User clicks ?ref=affiliate1

Day 10: User clicks ?ref=affiliate2

Day 15: User purchases

First-click: affiliate1 gets commission

Last-click: affiliate2 gets commission ✓

Why Last-Click is Best

Last-click rewards the affiliate who actually convinced the customer to buy. Here's why this is fairer:

  • Rewards the closer: The affiliate who did the final convincing—wrote the compelling review, answered the customer's questions, or offered a comparison—gets the commission.
  • Encourages quality: Affiliates are motivated to create better content that actually converts, not just drive random clicks.
  • Aligns incentives: Affiliates compete to provide the most value to customers, which benefits everyone.
  • Simpler disputes: It's clear who "owns" the sale—the last affiliate the customer clicked before purchasing.

The Problem with First-Click

First-click might seem fairer at first glance—"they found the customer first!"—but it creates serious problems:

The biggest risk with first-click: If an affiliate's link is broken or they send low-quality traffic, they "own" that customer for 365 days. Even if a better affiliate does a huge amount of work to convince that customer to buy later, the second affiliate gets $0.

Other problems with first-click:

  • Rewards accidents: A random click on a low-effort link can lock in commission for a year, even if it didn't influence the purchase decision.
  • Punishes good affiliates: High-quality affiliates who create detailed reviews, comparisons, and tutorials get nothing if someone else got a click first.
  • Encourages spam: Affiliates are incentivized to get clicks by any means necessary, rather than actually helping customers.
  • Long lockout periods: With 365-day cookies, one accidental click can block attribution for an entire year.

How It Works in Practice

Here's a realistic example:

January: Sarah sees a random tweet with an affiliate link. She clicks it briefly but doesn't buy. (Affiliate A)

February: Sarah is seriously considering the product. She finds Mike's detailed YouTube review that answers all her questions. She clicks his link. (Affiliate B)

March: Sarah purchases through the site.

With last-click: Mike (Affiliate B) earns commission. His review is what convinced Sarah to buy.

With first-click: Affiliate A would earn commission for a random tweet Sarah barely remembers.

Last-click ensures the affiliate who provided the most value—Mike, who created the review that closed the sale—gets rewarded.

Key takeaway: Last-click attribution rewards affiliates who actually help customers make purchasing decisions, not just affiliates who happened to get a click first.