I'd like to be able to determine the site a user is coming from. I know that I can do this with the HTTP_REFERER environment variable but that this is an unreliable method due to:

  1. browsers that don't set it
  2. browser that allow you to change it
  3. privacy programs that change it for users.

So, does anyone know of another way to determine the site a user is coming from?

Thanks!
Yazmin

    If the Web browser doesn't tell the HTTP server the (correct) information, then there is no alternative unless something like Javascript allows you to poke around in the browserspace. (Probably not; it would be a privacy violation.)

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