title: Get domain name of a url in C# / .NET
body: <p>The code:</p>
  
  <pre><code>string sURL = "http://subdomain.website.com/index.htm";
  MessageBox.Show(new System.Uri(sURL).Host);
  </code></pre>
  
  <p>gives me "subdomain.website.com"</p>
  
  <p>But I need the main domain "website.com" for any url or web link.</p>
  
  <p>How do I do that?</p>