I am working on a website that generates traffic for partner sites. When a partner site's logo is clicked on our site we open the partner site in a page that contains our basic header and the partner site within an iframe. Earlier we were simply opening the partner site in new window. All cool so far.
Most partner sites use google analytics to track the traffic that we send them and soon after we started opening sites within iframe our partners reported that google analytics does not track data anymore (or tracks just a fraction of data).
I have done my fair share of homework/research on googleverse and found the know issue with google analytics or cookies in general across domains and iframes.
I am trying to resolve this issue and the only solution that has been referenced is the use of P3P headers.
First, where do the P3P headers go? In my sites pages or the partner sites pages. Since we have many partner sites (big and small) it wont be practical if the solution is to put tags in each of these sites. I can easily have them added to the page that contains the iframe.
Among the various p3p header generators is there a reliable one that you recommend?
Is there any way around this issue? I really need to open the sites in iframes and obviously the partner sites really need to track the traffic.
Thank you for the help.