Returns the Http:BL query string to use

        :param ip_address: IP address to query
        :type ip_address: str
        :returns: str

def _build_query(self, ip_address):
        """Returns the Http:BL query string to use

        :param ip_address: IP address to query
        :type ip_address: str
        :returns: str

        """
        return '{}.{}.{}'.format(
            self.key, self._reverse_ip(ip_address), DNSBL_SUFFIX)