With Cut0, Deep links are built on top of short links rather than created as standalone items. Because of this, they inherit the domain configuration from the underlying short link.
Custom domains are supported at the short link level, so if a short link uses your branded domain, the same domain is automatically reflected in the Deep link. This helps keep your links consistent and recognizable without requiring any separate setup specifically for Deep links.
At the same time, Deep links have their own configuration layer. You can define where the link should open inside a mobile app and specify a fallback URL for cases when the app isn’t installed. This allows you to control the user experience across devices while still relying on the same domain and link structure.
For more information, see How do I add a custom domain? and How do I create a Deep link with Cut0?