title: Get app link referer
body: <p>I implemented app links. Is there any way to get the referrer from which the user came to my app without adding additional information to URL?</p>
  
  <p>Or at least any way to filter open intent only from some source, for example, email or messenger, but not from the browser.</p>
  
  <p>I am not interested in install referrer.</p>
  
  <p>I need to recognize if the user came from the email, google, or from my website.</p>
  
  <p>Thanks!</p>