Is there a way to check if a page has been landed on from an external source [closed]

Question

Using c#, I m looking to personalise a page if its the first page the user has come across.

I'm not concerned whether the solution is bulletproof because the feature is purely asthetical and can degrade.

It must use be an ASP.NET method, not JavaScript.

Answer 1

with

Request.UrlReferrer.Host

you can get the URL of the client's previous request. But this won't work with https from external pages