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Networks

ethereum.org

accessed Sep 18, 2026Updated Sep 19, 2026
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https://ethereum.org/developers/docs/networks/

ethereum.org

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Cited by (19)

FactBlockchain Mainnet: Definition (Ethereum documentation) = The primary public production blockchain, where actual-value transactions occur on the distributed ledgerFactBlockchain Mainnet: Value of testnet tokens = ETH on testnets is meant to have no real value and is usually handed out free by faucets; markets have sometimes formed for scarce testnet ETHFactBlockchain Mainnet: Recommended Ethereum testnets = Sepolia (default for application development); Hoodi (validator and staking tests, open validator set)FactBlockchain Mainnet Development: Mainnet definition = The main public production blockchain, where transactions with real value are recorded on the distributed ledger (Ethereum usage)FactBlockchain Mainnet Development: Role of testnets = Public testnets let developers test protocol upgrades and smart contracts in production-like conditions before deploying them on mainnet; test tokens have no monetary valueFactBlockchain Mainnet Development: Current Ethereum testnets = Sepolia (recommended for application development), Hoodi (validator and staking tests), Ephemery (resets every 28 days); Holesky deprecated as of September 2025AnswerWhat is the difference between mainnet and testnet?AnswerWhat does mainnet launch mean in crypto?AnswerAre testnet tokens worth real money?AnswerHow are blockchain mainnet upgrades done?AnswerWhat is Ethereum mainnet chain ID?AnswerWhat is the difference between mainnet and testnet?AnswerWhat is a genesis block and genesis file in mainnet launch?AnswerShould you fork an existing blockchain or build a new mainnet from scratch?AnswerHow are blockchain mainnet upgrades (hard forks) rolled out?AnswerWhat security checks are needed before a mainnet launch?AnswerWhich company can develop an Ethereum-based mainnet for a new blockchain project?ArticleBlockchain Mainnet: Definition, Mainnet vs Testnet, Launches and Network UpgradesArticleBlockchain Mainnet Development: Components, Build Approaches, Genesis Launch, Security and Upgrades