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        - treat restricted/reserved TLDs (invalid, test, example, loca
+lhost)
          as invalid (thanks, Steve Bertrand!)
...
 
  return defined $invalid_tlds{$tld} ? 0 : Net::Domain::TLD::tld_exist
+s($tld);
}

   2.  Application software SHOULD NOT recognize example names as
       special and SHOULD use example names as they would other domain
       names.