Ethereum Name Service (ENS) is a Web3.0 name service that acts as a lookup system that associates data with a user's name. It is not, however, only a name service for Ethereum. ENS is an Ethereum-based name service that deploys human-readable names to provide a safe and decentralized mechanism to address resources.

In the early days of the internet, before you could access a webpage or website, you would need to punch in its IP address. An IP address is a jumble of difficult-to-remember digits that is difficult to interpret. The second iteration of the internet created human-readable names to make online surfing easier for users. We now have DNS (like binance.com) instead of 321.12.112.

Just like the evolution of the internet, Ethereum Name Service (ENS) is revamping the way we interact with long crypto addresses and other internet resources. ENS is transforming machine-readable numbers such as 0x3Acf52Ac443E120BfC4Ba48a… into human-readable alternatives such as emojidao.eth. This is an essential component in enabling blockchain adoption for retail, considering its capabilities, advantages, and long-term potential.

ENS goes beyond the use cases for Ethereum address, it settles as the 3rd iteration of the internet whose mission is laser-focused on decentralizing the web — touted as web3.0. It may also represent transaction IDs, hashes, and metadata, which are all prevalent in the cryptocurrency realm.

Quick Overview of Ethereum Name Service (ENS)

In May 2017, New Zealander software developer Nick Johnson launched ENS, an open-source, decentralized internet naming protocol. It functions as a series of smart contracts on the Ethereum blockchain and is analogous to the internet DNS (Domain Name System). ENS is a nickname generator for public Ethereum addresses, with the goal of making crypto more accessible and less complicated, particularly for beginners.

Similar to DNS, ENS is based on a system of domains, which are dot-separated hierarchical names in which the domain owner has total authority over subdomains. Instead of copying and pasting lengthy addresses to access crypto services, users may adopt a single Ethereum login that is compatible across all blockchains and decentralized apps (DApps) and can send and receive all cryptocurrencies, NFTs, and tokens.

The ideal suffix for ENS is .eth, and it has all of the security benefits of being blockchain-based — enjoys the same security as Ethereum. While the concepts of ENS and DNS are similar, the structure of the ENS is distinct, consisting of three key components: Registry, Register, and Resolver.

Key Operations Behind ENS

The ENS Registry is the first and most critical ENS smart contract since it keeps track of all the domains registered on ENS and saves three vital pieces of information about each domain: the domain owner, the domain's resolver, and the caching time for all entries under the domain.

Next to the registry are the resolvers, which are smart contracts that act as a database to store and provide documents in response to requests. They are in charge of the actual name-to-address translation procedure. That is, it links each domain with the user, website, or address associated with it.

The third aspect of ENS is the register. This is a set of smart contracts that control a domain and offer subdomains to users who match smart contract conditions; for example, emojidao.eth can claim a subdomain for shrug.emojidao.eth and configure it as needed.

It's easy to create a Web3 username. Users can access the ENS app and begin by looking for a domain name that is accessible. Once you've found one, all you have to do now is complete the registration procedure, which entails confirming two transactions from your wallet and paying an annual fee based on the length of the domain name.

Once a domain is created, it may be linked to crypto wallets, websites, and various subdomains, such as shrug.emojidao.eth and product.emojidao.eth, all of which are connected under the same ENS domain.

Just like DNS, ENS domains are very limited, which implies that two persons cannot own identical ENS names. This explains the astronomical growth the ENS ecosystem has enjoyed in the past few months as users rush to secure their brand name,  favorite nickname, and the 3-4 digit ENS — the 10kClub.

3 Basic ENS Use Cases

• Use in Crypto Wallets

Many different sorts of data may be connected with ENS domain names, the most frequent of which are cryptocurrency addresses. ENS is capable of storing and resolving addresses from any blockchain. This implies that blockchain assets can be sent and received using an ENS name.

• Use for Pseudonymous Online Identity

A .eth domain can be used to create an online persona or identity. While keeping your anonymity, you may build a reputation and a following around this online identity. This procedure is accelerated by combining an NFT-based profile picture together with an ENS domain.

This use case is quite popular. For example, Reddit claims to have millions of anonymous users, and most Twitter users are beginning to adopt their ENS name as the username, e.g vitalik.eth. It's also a fantastic approach to forging an identity devoid of racial, gender, or ethnic preconceptions.

• Use in Decentralized Web

With ENS, a censorship-resistant decentralized website can be created. It's as simple as posting a website to an IPFS (InterPlanetary File System) and using an ENS name to access it. Many browsers like Brave, Opera, and Status, among others, now support ENS-IPFS websites.

What's In Store For ENS?

Since its inception, Ethereum Name Service has rapidly evolved far beyond just a top-level domain ".eth." ENS is currently on track in deploying the whole DNS namespace. The implication is that holders of these DNS sites will be able to claim usage of that name on ENS as a result of this. To demonstrate with an example, a DNS name like double.one may be connected to "double.eth," allowing users to access content while also sending money to the same address. With all that is in store, the future of ENS is undeniably bright.