docs: public boolean isValidGenericTld(String gTld) {
          final String key = chompLeadingDot(unicodeToASCII(gTld).toLowerCase(Locale.ENGLISH));
          return (arrayContains(GENERIC_TLDS, key) || arrayContains(genericTLDsPlus, key))
                  && !arrayContains(genericTLDsMinus, key);
      }