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

https://signalscv.com/2025/12/top-7-best-coupon-management-software-rankings-for-2026/

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