Test Network

Definition ∞ A test network, or testnet, is an instance of a blockchain network used by developers to experiment with and test new features, smart contracts, or decentralized applications without using real cryptocurrency. These networks replicate the functionality of the main blockchain but operate with valueless tokens. They serve as a sandbox for development and auditing.
Context ∞ Test networks are essential components in the development lifecycle of any blockchain project, frequently mentioned in news regarding protocol upgrades or new dApp launches. Their role in identifying bugs and ensuring system stability before deployment to the mainnet is critical. Observing activity on testnets provides early indicators of upcoming features and the progress of various blockchain innovations.