my interest is in security/privacy.
I have a site but I want to set up a way that one of my website's pages can only be accessed when a provided QR code is scanned. In other words, I don't want the URL that the QR code possesses to be able to just be manually typed/pasted in for site access via other means.
I've been googling this issue for a bit with no luck whatsoever. I'm trying to think of a way with referring URLs or other means to ensure that a person arrived at the site by actually scanning the provided QR code.