if ((new RegExp(`^(vz.*|zz.*)\\.*$`, 'i')).test(bid.params.host)) { // New endpoint
      if ((new RegExp(`^(zz.*)\\.*$`, 'i')).test(bid.params.host)) return validBasic(bid)
      else return validBasic(bid) && validMediaType(bid)
    } else { // This is backward compatible feature. It will be remove in the future