E-commerce fraud costs merchants billions annually — fake accounts, stolen cards, and promo abuse. Phone verification at signup or checkout confirms the buyer owns the number tied to the order, cutting fraud rates significantly.
Where to add OTP in your store
| Flow | When to verify | Impact |
|---|---|---|
| Account signup | Before first order | Blocks bulk fake accounts |
| Checkout | High-value or first order | Reduces chargebacks |
| Password reset | Before credential change | Stops account takeover |
| Promo redemption | Before coupon use | Prevents promo farming |
Implementation options
- Drop-in widget — add verification UI in minutes, no design work
- REST API — custom checkout flow with your existing phone input
- Webhook events — sync verification status to your order management system
DoneOTP charges only for successful verifications. Failed SMS sends are refunded — you never pay for delivery failures during peak checkout traffic.
FAQ
Will OTP hurt checkout conversion?
Keep it to high-risk flows (first order, high value) or offer it only when fraud signals trigger. Sub-3-second delivery minimizes drop-off.
Does it work internationally?
Yes — DoneOTP delivers to 190+ countries with local operator routes.