DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   nu
      <networking> The country code for Niue.
      (1999-01-27)
      Because it sounds like "new", nu is heavily
      used for vanity domains.
      (1999-01-27)