⚡ Storefront Age & Shipping Checkouts
Frictionless Checkout.
Instant Verification.
Add smooth 21+ age verification and state shipping rules to your Shopify, Commerce7, WineDirect, or Square storefront in minutes. Cooper handles ZIP checks automatically so your buyers enjoy a seamless checkout.
caskstack-checkout.js
<script src="https://caskstack.com/js/caskstack-checkout.js"></script>
<script>
// Cooper verifies 21+ age & state shipping rules instantly!
CaskStack.init({ tenantId: "01h9x..." });
</script>C
How Cooper Helps You & Your Brand
"I make checkout effortless for your online shoppers! When a buyer enters their ZIP code, I confirm shipping eligibility instantly and guide them smoothly through age verification."