Promotion abuse
Coupon abuse: enforce eligibility beyond a CAPTCHA
Review promotion eligibility, attribution, duplicate claims, and redemption state separately from challenge completion when protecting discounts or credits.
By the easycaptcha team · Published
A coupon or trial credit has business rules: who may claim it, how often, and for which purchase or account. Passing a CAPTCHA does not establish those conditions. Enforce eligibility in the operation that grants the benefit, not only in the page displaying the offer.
Promotion eligibility
This distinction is especially important when promotions are attached to newly created accounts. A successful registration is not necessarily evidence that the same person or organization has never received a benefit before.
Keep redemption state authoritative
Record the benefit and its redemption state on the server. Review concurrent requests and retries so one eligible action cannot grant multiple awards. Do not trust a client field claiming a discount was checked.
| Boundary | Check to review |
|---|---|
| Claim | Actor and promotion eligibility |
| Reservation | How long the claimed benefit is held |
| Redemption | Whether the intended transaction qualifies |
| Reversal | How canceled activity changes the award |
These are proposed application-design questions, not a promise that any CAPTCHA service supplies a promotion engine.
Limit expensive downstream work
Review account creation, messages, and discount allocation around the claim. Verification can be an additional condition when appropriate, but genuine users still need a clear error and recovery path. Preserve their non-sensitive input after an expired proof.
Separate suspicious patterns from confirmed misuse. Aggregated claims and redemption outcomes can identify where to investigate without assuming every customer on a shared network is the same actor.
Test reversals and retries
Exercise duplicate redemption, simultaneous claims, failed verification, and a canceled purchase. Confirm that the business rule survives alternate APIs and does not rely on the browser’s progress state.
For easycaptcha’s specific referral bonus, use the affiliate documentation rather than inferring promotion behavior from this general article. Fake-account controls cover related registration abuse, while program comparison separates deposit bonuses from request attribution.
Frequently asked questions
Can CAPTCHA decide whether a shopper qualifies for a discount?
No. Eligibility, redemption limits, and order rules belong to the application. Verification is an additional check before the protected action.
How can I reduce duplicate coupon redemptions?
Enforce promotion rules on the server and review redemption across relevant identifiers. Avoid relying only on a disabled button or one IP address.
Can I try easycaptcha browser assistance for free?
Yes. Install the Chromium extension and activate its free plan for 25 recognitions a day, without an account or credit. Larger or multi-round challenges can use multiple recognition groups.