Deep-link is a type of link for mobile platforms that directs users to a particular content inside an app.
When a customer clicks on a Deep Link, there are 2 circumstances when users click on a deep link:

#1 People using laptops and computers will be redirected to another web page (as usual).

#2 People using smartphones and tablets won’t see a website. Instead:
If they have installed the app: The deep link will open relevant content inside the app.
If the app hasn’t been installed yet: A pop-up window will appear and invite users to install the app. If they choose Yes, it will direct them to the app page in the App Store or CH Play.