Solution · Promo codes and welcome offers
One welcome discount per customer, not one per fake address.
For e-commerce: protect your promo codes, welcome offers and referral bonuses without slowing down real customers.
The problem
- 01
The same customer uses 10% off several times with fake addresses: the discount eats your margin.
- 02
Referral bonuses are abused with accounts created in bulk.
- 03
Codes shared on deal sites mostly attract disposable accounts.
How Ksar solves it
Account accepted, promo offer denied
The person can buy normally: only the discount is denied if they already used it.
No device fingerprinting
Detection relies on the email address, with no tracker and no consent banner.
Measured in euros
Every month, a report quantifies the discounts protected and the money saved.
Example settings
See it in action
Rules are set per customer, without code, from the dashboard or the API:
Run the 3 tries of the guided demo, on a shop that looks like yours.
PUT https://api.useksar.com/v1/settings
{
"mode": "shadow",
"offer_policy": "scored",
"offer_threshold": 40,
"offer_profiles": {
"welcome_discount": {
"offer_value_eur": 10
}
}
}Protect your signups today.
Free API key instantly, no credit card. Or ask us for an audit of your signups.
Other use cases