Fingerprint capping limits the number of times a unique user can access an Offer within a defined time window. Aftrad identifies each unique user based on the Segment configuration and counts their clicks. Once the limit is reached, subsequent clicks from that user are rejected.
This is useful for preventing the same user from clicking the same Offer repeatedly, which can inflate click counts and affect conversion rate quality.
How to access it
Go to the Offer, navigate to General > Main setup, and scroll down to the Offer fingerprint capping section.
Configuration options
Segment (mandatory) — the attribute or combination of attributes used to identify a unique user. Available options:
User Agent + User IP — identifies the user by their browser user agent combined with their IP address.
User IP — identifies the user by their IP address only.
Device ID (IDFA or GAID) — identifies the user by their mobile device ID (iOS IDFA or Android GAID).
User IP if Device ID (IDFA or GAID) is empty — uses the device ID when available, falls back to User IP if not.
"User Agent + User IP" if Device ID (IDFA or GAID) is empty — uses the device ID when available, falls back to User Agent + User IP if not.
Period — the time window during which the click count for each unique user is tracked. Once the period resets, the counter starts again.
Allowed repetitions — the maximum number of clicks allowed per unique user within the defined period. Clicks that exceed this limit are rejected.
💡 Tip: For mobile campaigns where device IDs are available, use Device ID (IDFA or GAID) as the segment for the most accurate user identification. For web campaigns, User Agent + User IP are the most common choices.
⚠️ Important: Fingerprint capping applies to clicks, not to conversions. It controls how many times a user can initiate a click to the Offer, not how many conversions they can generate.