Inserting referer before redirect

referer

[activeco]

I have a few sites where some pages are redirected (RewriteRule - 301) to a single one on another site.
The problem is that I can't find a way to find out from which site the page is being redirected, as the redirecting referer is not passed through.
I have tried almost everything related to mod-headers without success.
Any ideas?

[jdMorgan]

The HTTP_Referer header is sent by HTTP clients, so your server can't send it in a redirect.

Consider appending the information to the URL as a query string (or perhaps as a fragment), and then the target site can retrieve it:

RewriteRule ^my-page$ http:othersite.com/single-page?ReferredBy=my-page

Jim

[activeco]

Yes I can add an extra QS as url's already include other queries, but I would prefer referrer solution which seemingly can't be done.

Thanks Jim.