The value will be different for every site. Currently each MSM site uses the header and footer of the default site. The only data that needs to be different is the Google Analytics ‘_setDomainName’ e.g.
[removed]
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-XXXXXXX-1']);
_gaq.push(['_setDomainName', 'example.com']);
_gaq.push(['_setAllowLinker', true]);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s[removed].insertBefore(ga, s);
})();
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