Question about deep linking to app from web


I see that the deeplinks plugin allows for setting up a host url and scheme but is there anything that needs to be handled on server side for this URL? For example if the web version of my app was on and I wished to generate a link to my app that I could use on the web, like, do I need to set up something on the server? Or how does the link know to navigate to the app?

for example, if my link is - do I need to have a page set up on the webapp site or will the phone just navigate to the app when the link is clicked?