title: Setup CNAME alias from one domain to another
body: <p>I'm attempting to satisfy the <a href="http://code.google.com/speed/page-speed/docs/request.html#ServeFromCookielessDomain" rel="nofollow">Cookieless domain suggestion</a> of Google's Page Speed plugin and am running into a wall with my host who can't be bothered with the details of why it's not working. Accessing <a href="http://st1.dgcstatic.com" rel="nofollow">st1.dgcstatic.com</a> should be the same as accessing <a href="http://st1.defunctgames.com" rel="nofollow">st1.defunctgames.com</a>; however, this is not the case.</p>
  
  <p>Have I missed a step of configuration? Do I need to wait for DNS propagation? You can see below my steps of experimentation.</p>
  
  <p><strong>DNS Setup:</strong></p>
  
  <ol>
  <li>Created CNAME of st1.dgcstatic.com to point to st1.defunctgames.com on dgcstatic.com</li>
  <li>Created A record of st1.defunctgames.com on defunctgames.com</li>
  <li>Created sub-domain of st1.defunctgames.com on defunctgames.com</li>
  </ol>
  
  <p>When I run a <code>tracert st1.dgcstatic.com</code> it produces the following result:</p>
  
  <pre><code>C:\Users\Patrick&gt;tracert st1.dgcstatic.com
  
  Tracing route to st1.defunctgames.com [50.22.11.10]
  </code></pre>
  
  <p>When I run a <code>host st1.dgcstatic.com</code> it produces the following result:</p>
  
  <pre><code>patrick:~ patrick$ host st1.dgcstatic.com
  st1.dgcstatic.com is an alias for st1.defunctgames.com.
  st1.defunctgames.com has address 50.22.11.10
  </code></pre>
  
  <p>And finally, using this site it seems to produce the same results of showing things configured correctly.</p>
  
  <p><a href="http://www.mxtoolbox.com/SuperTool.aspx?action=mx%3ast1.dgcstatic.com" rel="nofollow">http://www.mxtoolbox.com/SuperTool.aspx?action=mx%3ast1.dgcstatic.com</a></p>
  
  <p>According to all these results, the world can see my DNS changes, my host on the other hand gave me the "Wait for propagation" rigmarole When asked why this isn't working.</p>