title: Meaning for google homepage parameters (gfe_rd,gws_rd,ei)
body: <p>When I open a google page, the URL shows as:</p>
  <pre><code>https://www.google.co.in/?gfe_rd=cr&amp;ei=-IyiU-OEDe3V8gewwYBg&amp;gws_rd=ssl
  </code></pre>
  <p>I would like to know, why it has those parameters and why Google adds them?</p>
  <h3>i.e.</h3>
  <p><code>gfe_rd</code> <code>gws_rd</code> <code>ei</code></p>