_ga querystring, is this part of classic or universal google analytics
<p>I help manage a site that had classic google analytics installed and it has recently migrated to universal analytics via Google Tag Manager.</p>

<p>Now when travelling to a subdomain google is appending the cookie information to the anchor, as a querystring value.</p>

<pre><code>?_ga=1.94005085.150702697.1452253355
</code></pre>

<p>Apparently this has didn't happen with classic analytics, even though the set up is like this:</p>

<pre><code>pageTracker._trackPageview(getPageUri(true));
pageTracker._setAllowLinker(true);
</code></pre>

<p>Does anyone know if the url will be changed when travelling to a sub domain on classic analytics with the above options? </p>