Mastering Blockchain - Second Edition

Testnet

Testnet is also called Ropsten and is the widely used test network for the Ethereum blockchain. This test blockchain is used to test smart contracts and DApps before being deployed to the production live blockchain. Moreover, being a test network, it allows experimentation and research. The main testnet is called Ropsten which contains all features of other smaller and special purpose testnets that were created for specific releases. For example, other testnets include Kovan and Rinkeby which were developed for testing Byzantium releases. The changes that were implemented on these smaller testnets has also been implemented on Ropsten. Now the Ropsten test network contains all properties of Kovan and Rinkeby.