Introduction: The Uncensorable Phonebook
We rely on DNS to translate names like Google.com into IP addresses. However, DNS is controlled by central bodies like ICANN. Governments can force a DNS provider to delete a record, taking a website offline. ENS (Ethereum Name Service) is the Web3 alternative designed to be completely uncensorable.
Mapping on the Blockchain
With an ENS domain (like `alice.eth`), the record isn't held by a company; it is an unchangeable 'Smart Contract' on the Ethereum blockchain. It doesn't just resolve to IP addresses; an ENS name can resolve to a cryptocurrency wallet, a decentralized IPFS website, or a traditional server.
Conclusion
ENS is the decentralized phonebook of the future. It guarantees that as long as the blockchain exists, your digital identity cannot be erased by anyone. Check your DNS provider here.