Determine whether a request came directly to a share or via a DFS referral

So I have a reverse version of a question I see posted here quite often. I see a lot of people ask how to find out where a DFS referral is pointing them, or which server is being used, but what I would like to know is if there is a way to determine whether a request to a server came via a DFS redirect or not.

For example. Let's say you have a share on \\server1\share mapping toc:\share, and a domain DFS set up at \\contoso.com\share that has a folder target pointing to\\server1\share. When looking on the computer management for the server, I can see open files forc:\share.

But is there a way to determine whether a client accessed the file directly via\\server1\share\file.txt or via \\contoso.com\share\file.txt ?

Thanks!
Jeffe