Why Sub-50ms API Responses Are Critical for Checkout: Stopping Codebroker Fraud, Single-Use Coupon Leaks, and SMS Abuse

https://griffinldmr408.fotosdefrases.com/why-multi-tenancy-and-redemption-testing-matter-when-launching-global-promotions

Checkout drop-off and fraud windows: why milliseconds change whether a sale is saved or stolen When a customer clicks "Pay" during checkout, the system has only a few hundred milliseconds to validate payment, apply discounts, and block abuse