title: A/B test mobile site version vs desktop with Google Analytics
body: <p>I have mobile version of site on subdomain m.site.com and desktop version site.com. I want to send 50% of traffic from m.site.com to site.com and compare conversion. The problem is that right now it's almost 2 different sites, so I think I need different goal pages for m.site.com and site.com. If it possible to create such experiment at Google Analytics?</p>