title: How to extract website hostname from full url using VB.NET?
body: <p>I get ReffererUrl from current User, if refferer is exists i need to extract hostname without .com/.co.uk .... etc. value from it. So if ReffererUrl is <a href="http://main.something.biz/sup.aspx?r=e3432r3" rel="nofollow">http://main.something.biz/sup.aspx?r=e3432r3</a> i want to get just "something".</p>
  
  <p>Doesn't matter whether it is Regex or something else.</p>
  
  <p>thanks...</p>