code: @Override
      public String toHumanString() {
          if (unicode) {
              return domain;
          }
          final IDNA.Info idnaInfo = new IDNA.Info();
          final StringBuilder idnaOutput = new StringBuilder();
          IDNA.getUTS46Instance(IDNA.DEFAULT).nameToUnicode(domain, idnaOutput, idnaInfo);
          return idnaOutput.toString();
      }
docs: Converts the domain to a Unicode representation suitable for human interpretation. It does IDNA conversion.
  
  @see Host#toHumanString()
  @return unicode string