The Ethereum Name Service (ENS) is a decentralized, open, and expandable naming system built on the Ethereum blockchain. It transforms complex machine-readable identifiers—like cryptocurrency addresses or content hashes—into human-readable names (e.g., alice.eth).
Key Features of ENS
- Human-Friendly Names: Maps
nick.ethorjefflau.ethto wallet addresses (0x0000...0000). - Reverse Resolution: Links metadata (e.g., usernames) to Ethereum addresses.
- Interoperability: Supports integration with traditional DNS (Domain Name System) via DNSSEC.
How ENS Works
1. Top-Level Domains (TLDs)
TLDs like .eth and .test are governed by smart contracts (registrars), which enforce rules for name allocation.
2. ETH Registrar
The .eth registrar issues names as tokens on Ethereum:
- Trustless Registration: Managed via smart contracts.
- Ownership Secured: Names are tied to blockchain-based cryptographic proof.
ENS + DNS Integration
ENS extends DNS capabilities by supporting imported DNS names (e.g., .com, .xyz) through DNSSEC. Compatible domains include:
.com,.org,.net.finance,.social,.crypto
Subdomains & Customization
ENS’s hierarchical structure allows users to create subdomains (e.g., pay.alice.eth) or deploy custom resolvers for:
- Apps: Programmatic subdomain issuance.
- DAOs/Communities: Assign roles via subdomains.
👉 Learn about subdomain issuance
Getting Started with ENS
- ENS Manager App: Manage names via ens.app.
- Third-Party Apps: Check ENS-integrated tools on ens.domains.
FAQ
1. Is ENS similar to DNS?
Yes, but it’s blockchain-based, enabling decentralized control and crypto integrations.
2. Can I use my existing DNS domain with ENS?
Absolutely! DNSSEC-compatible domains (e.g., .com) can be imported.
3. How secure are ENS names?
Ownership is secured by Ethereum’s blockchain, preventing unauthorized transfers.
4. What’s the cost of registering a .eth name?
Prices vary based on name length and demand, paid in ETH.
5. Can I create subdomains for free?
Yes, but configuring custom resolvers may involve gas fees.
ENS bridges Web3 usability with traditional web infrastructure, offering a decentralized identity layer for wallets, websites, and beyond. Ready to claim your .eth name? Start exploring today!