About this app
GateKeeper blocks orders shipping to US states or ZIP codes you restrict. Rules run inside checkout as a validation function, so customers cannot bypass them. Restrict all products, or only products with specific tags, and add unlimited ZIP codes with no size limit. When an order is blocked, the customer sees a message you write. GateKeeper also includes an optional 18+ or 21+ age gate for your storefront. It runs on any store and needs no theme changes.