*/

    if (isFinalPart && DIGIT_MATCHER.matches(part.charAt(0))) {
      return false;
    }

    return true;
  }

  /**
   * Returns the individual components of this domain name, normalized to all lower case. For
   * example, for the domain name {@code mail.google.com}, this method returns the list {@code
   * ["mail", "google", "com"]}.
   */