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GuidesRecipesAPI Reference
GuidesRecipesAPI Reference
  • Getting Started
    • Getting Started with Checkout
    • ACH Checkout
    • Card Checkout with Credits
    • Card Checkout
    • Direct USDC Settlement
    • Fiat/Crypto Pay-ins
    • Secure Marketplace Checkout
    • EVM Checkout
    • How to Enable Checkout with Credit Cards
    • Quick Start Marketplace Implementation
    • Payouts
  • Checkout
    • Getting Started
    • How Checkout Works
    • Card on File Transactions
    • Common FAQs
    • Common Checkout Pay-In Errors
    • Checkout Webhooks
    • ACH Overview
    • Credit Cards
    • Crypto Payments
    • Fraud Protection
    • Checkout Security
    • Settlement Locations
    • Refunds
    • Mobile App Payments
    • PIX Pay-In Overview
    • SEPA Pay-Ins
    • Testing
  • Payouts
    • Payout Overview
    • How Withdraws Work
    • Getting Started with Implementing Withdraws
    • Supported Payout Flows
    • Payout Speeds
    • Payout Currency
    • Common Payout/Withdraw Errors
    • Verification
    • Gasless EVM USDC Withdraw
    • USDC Token Addresses
    • Debit Card Tokenization
    • Apple Pay Push to Card
    • Testing Withdraws
    • Withdraw Webhooks Implementation
    • Card Payments Implementation
    • Available Countries
    • Bank Auth
    • Withdraw Implementation
  • Marketplaces
    • Marketplace Overview
    • How Marketplaces Work
    • How to Withdraw USDC
    • Countries Eligible for USDC Withdraw
    • Marketplaces Webhooks
    • Marketplaces Implementation
  • Subscriptions
    • Subscriptions Overview
    • How Subscriptions Work
    • Subscriptions Webhooks Implementation
    • Subscriptions Implementation
  • Developer Resources
    • Custom Branding
    • Checkout Implementation
    • Webhooks
  • Merchant Dashboard
    • Login & Account Access
    • Users and Roles
    • Production Merchant Account
    • Rate Limits
    • Developer Contact
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On this page
  • Why Domain Whitelisting Matters
  • How It Works
  • How to Whitelist a Domain
CheckoutCheckout Security

This guide explains how to whitelist your domain to ensure Checkout only loads on trusted sites, protecting against phishing and iframe injection attacks.