I suspect everybody will say that the holder of xxx.com holds a domain.
But what about the holder of yyy.xxx.com?
Why not? Are subdelegated domain holders inferior citizens?
If so, then we've just ruled out everyone such as joe.com.au.
Indeed. As Mark Lottor's host counts make clear, the
top hundred 3rd level domains account for 24% of all the
hosts. By any metric or construct, their importance
in the DNS is significant.
http://www.nw.com/zone/WWW/secondnames.html
Even the 100th of these has more hosts in its zone
than does any by the top 44 TLDs.
The top 3rd level domain, has more hosts under
it than any but the top 25 TLDs.
--tony
