title: How does this URL has something before www?
body: <p>I've never seen that before! How's does that works? I know ICANN now allows custom domain names, but it's before <strong>www</strong>! I've tried to add another www before <strong>welcome</strong> and it returned 404.</p>
  
  <p><img src="https://i.stack.imgur.com/CFWFp.png" alt="welcome.www"></p>