# Customize Checkout Customize the appearance and behavior of Checkout. Customize Checkout, including branding, legal policies, return policies, customer payment autofill, and custom domains. Customize the look and feel of Checkout, including the branding. Customize the support contact information, policies, and other text that your customers see. Customize the behavior of Checkout to improve conversion. Use a custom domain with Stripe Checkout, Payment Links, and the customer portal.