When auditing affiliate traffic, marketing teams often focus on traditional indicators like IP blocklists or conversion rates. However, one of the most powerful, mathematical proofs of ad fraud lies in a single timing metric: **Click-to-Conversion Time (CTCT)**.
CTCT measures the exact duration between a user clicking an affiliate link and the completion of a conversion action (such as submitting a form or finishing a checkout purchase). When this interval is unnaturally short, it provides clear proof of cookie stuffing or automated redirects. Let's analyze how to interpret CTCT data.
Understanding human checkout speeds
For a human buyer, completing a transaction requires multiple physical steps:
- Loading the landing page (1–3 seconds).
- Reading content, selecting options, and adding items to a cart (10–60 seconds).
- Navigating to checkout, entering name, shipping address, and payment credentials (30–120 seconds).
- Reviewing the order and clicking "purchase" (5–10 seconds).
Even with autofill tools, it is mathematically impossible for a human user to click an affiliate referral link and complete a purchase transaction in under **15 to 30 seconds**.
The mathematical signatures of fraud
When analyzing CTCT across hundreds of conversions, look for these specific distribution signatures:
- Sub-2-Second Conversions: Click-to-conversion intervals under 2 seconds indicate a stuffed cookie or an automated script running inside checkout. The cookie was injected natively at the moment of payment completion.
- Uniform Timing Spikes: A publisher whose conversions all happen exactly 4.2 seconds after their click is using a timed bot script to space out actions. Real human timing forms a natural bell curve, not a fixed line.
- Sub-10-Second Lead Submissions: If an affiliate refers B2B signups that complete a 5-field contact form within 5 seconds of the initial click, they are using automated form fill software.
How BotRefund utilizes CTCT analysis
BotRefund logs high-precision timestamps for every traffic click event and checkout submission.
By building timing distributions for every publisher ID, BotRefund highlights conversions that fall outside the bounds of human speed. It correlates these timing anomalies with behavioral telemetry—such as keyboard keypress speeds and mouse coordinates—giving you the exact proof needed to hold payout commissions on suspicious conversions.
Frequently Asked Questions
What is Click-to-Conversion Time (CTCT)?
It is the elapsed time between a user clicking an affiliate's tracking link and completing a conversion event on the merchant's site.
Why does a short CTCT indicate cookie stuffing?
A short CTCT (under 5 seconds) shows the affiliate click registered *after* the customer had already completed their shopping journey, which typically happens when browser extensions inject cookies at the checkout page.
What is a normal CTCT for e-commerce purchases?
For a normal, human transaction, the average CTCT is between 2 minutes and 24 hours, depending on whether the customer was first-time or returning.