Kovan (https://kovan.etherscan.io/) is the second of the PoA networks, and was created by the Parity team. As such, it is only supported by the Parity client.
Kovan (https://kovan.etherscan.io/) is the second of the PoA networks, and was created by the Parity team. As such, it is only supported by the Parity client.