– Universal Analytics(analytics.js): 
ga(‘create’, ‘UA-XXXXXXX-Y’, ‘auto’, {‘allowLinker’: true}); 
ga(‘require’, ‘linker’); 
ga(‘linker:autoLink’, [‘setster.com’] ); 
ga(‘send’, ‘pageview’);

– Google Analytics(ga.js): 
_gaq.push([’_setAccount’, ‘UA-XXXXXXX-Y’]); 
_gaq.push([’_setDomainName’, window.location.hostname]); 
_gaq.push([’_setAllowLinker’, true]); 
_gaq.push([’_trackPageview’]);



Instead of window.location.hostname a source-test.com domain name or vice versa.