title: What is _gat (Google Analytics) cookie used for?
body: <p>Is anyone aware of what _gat cookie is for? I know it's only for non-authenticated users and expires every 10 minutes. But I need to know what it's used for.</p>
  
  <p>I found <a href="https://developers.google.com/analytics/devguides/collection/analyticsjs/cookie-usage">this</a>, but not really sure what they mean with 'Used to throttle request rate'</p>