Ethereum Name Service (ENS) - What is it?
Tags: ethereum, smartcontracts, ens
Published: 2023-06-18 23:28:02

---
title: Ethereum Name Service (ENS) - What is it?
published: true
date: 2023-06-04 17:00:00 UTC
tags: Ethereum,SmartContracts,ENS
canonical_url: https://byteatati.me/ethereum-name-service
---

 This post was originally published **[on my blog!](https://byteatati.me/blog/ethereum-name-service)**

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Welcome back! Today, we’re going to dive into the fascinating world of the Ethereum Name Service (ENS) and explore the process of domain registration within the Ethereum ecosystem. ENS brings a touch of familiarity to the blockchain world by allowing users to register human-readable domain names, making interactions with Ethereum addresses more intuitive. So, let’s unravel the intricacies of ENS and discover how it simplifies the Ethereum experience.

# What is ENS?

The Ethereum Name Service is a decentralized domain name system built on top of the Ethereum blockchain. Similar to traditional DNS, ENS enables users to register human-readable domain names that can be associated with various Ethereum addresses, including wallet addresses, smart contracts, and decentralized websites. Instead of relying on long, complex hexadecimal addresses, ENS allows users to interact with the Ethereum network using memorable and user-friendly names.

# How ENS Works

ENS operates by linking Ethereum addresses to unique domain names, creating a mapping between the two. Each ENS domain consists of multiple levels, such as `myname.eth`, where `myname` is the unique identifier chosen by the user. ENS domains are stored on the Ethereum blockchain, ensuring their immutability and decentralization.

ENS domains were previously bought using a bid-reveal process, but this has since been replaced by a simple first-come, first-served system. This means that users can now register ENS domains directly through a registrar, without the need for bidding.

ENS domains are stored in a smart contract, which can be queried to retrieve the address associated with a given domain. On the Ethereum Mainnet, the ENS smart contract is located at `0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e` at the time of writing.

# Registering an ENS Domain

Registering an ENS domain is more or less the same as registering a domain name on the traditional DNS system. You can register an ENS domain through a registrar, which is a smart contract that allows users to register domains. The official and most common way to interact with a registrar is through the ENS website, located at [app.ens.domains](https://app.ens.domains/).

# Managing ENS Domains

Once you own an ENS domain, you have various options for managing it. You can associate the domain with different Ethereum addresses, including your wallet, smart contracts, or decentralized websites. Additionally, you can configure subdomains, set up custom addresses for specific purposes, and even transfer ownership of the domain to another Ethereum address.

# Benefits of ENS

The Ethereum Name Service offers several benefits to the Ethereum ecosystem:

- **User-Friendly Interaction** : ENS simplifies the process of interacting with Ethereum addresses by replacing complex hexadecimal addresses with human-readable domain names.

- **Decentralization and Immutability** : ENS domains are stored on the Ethereum blockchain, ensuring the decentralization and immutability of the domain name system.

- **Versatility** : ENS domains can be associated with various Ethereum addresses, providing flexibility for wallet addresses, smart contracts, and decentralized websites.

- **Interoperability** : ENS is compatible with other Ethereum-based services and decentralized applications, making it easier to integrate with the broader Ethereum ecosystem.

# Conclusion

ENS is a widely used standard for registering human-readable domain names on the Ethereum blockchain. ENS domains are stored on the Ethereum blockchain, ensuring decentralization and immutability of the domain name system. ENS domains can be associated with various Ethereum addresses, including wallet addresses, smart contracts, and decentralized websites.

Overall, ENS reduces the barrier of entry to Ethereum by providing a level of abstraction over the complex hexadecimal addresses used by the Ethereum network. This makes it easier for users to interact with the Ethereum ecosystem and provides a more familiar experience for those coming from traditional DNS.