title: Does Google Analytics event tracking on links slow down the user experience?
body: <p>I am considering attaching onclick events to internal links on my site to do some Google Analytics event tracking. But I am concerned about performance. My understanding is that the workflow will change:</p>
  
  <ol>
  <li>User clicks on hyperlink </li>
  <li>A call is made to Google Analytics to send event tracking data</li>
  <li>Browser waits for response from GA server</li>
  <li>Browser follows the link and opens the new page.</li>
  </ol>
  
  <p>I am concerned about the delay introduced by steps 2 and 3. So the questions are:</p>
  
  <ol>
  <li>Is my understanding of the flow correct?</li>
  <li>What's the typical delay (in milliseconds) that the call to GA event tracking introduces?</li>
  </ol>