Any help with this would be appreciated!

Anyone that can help with a workable solution I would be very grateful. I don't think this is a big problem to solve but I might be wrong about that.

Anyway, here's the problem. I'm using WP for the site. A plugin does not exist for this - as far as I know and I did an extensive search. If you know of one cool! Problem solved... but if not... here goes:

I have a page on my WordPress site that is a special offer for my partners to send traffic to and I don't want anyone else to see it who is not clicking the link from my partners website.

So let's say my partners website is "Partner1.com" and I want them to link to a special offer page that says "Partner1 Visitors Welcome!".

But the problem is that the "Partner1" page on my site can be indexed by search engines and anyone else who happens to find it.

My question is how can I restrict the people that access my page to ONLY those who come from "partner1.com" and then redirect all other visitors to some other link - like my home page for example or another link like a "you don't belong here" page?

So the way I see this working is a plugin that looks at where the domain the person is coming from and if it's "partner1.com" then they see the specific page for "partner1" if it comes from the domain "partner2.com" then they see the page for "partner2" anyone else not coming from those domains (partner1.com and partner2.com) would be redirected to a "you don't belong here" page.

I need a solution (plugin?) that works for 2-3 partners or more at time.

Thanks, in advance, for the help!

I'll answer any questions and am willing to pay for a working wpplugin that solves this problem.

Dave