A web3 TLD is a blockchain-based name — usually an NFT — such as ENS names ending in .eth, or Unstoppable Domains names like .crypto, .nft and .wallet. Their main job is to give a human-readable label to a crypto wallet and a decentralized identity. Critically, they are not part of the ICANN DNS root, so default browsers cannot resolve them — you need an extension, a web3 browser, or a gateway.
It is easy to assume .eth is just another top-level domain like .com or .io. It is not. A real TLD is delegated in the single root zone coordinated by IANA on behalf of ICANN, which is why every browser on earth can open a .com without any extra software. Web3 names live somewhere else entirely — on a blockchain — and that one fact explains nearly everything about how they behave.
What are web3 domains, really?
Web3 domains are records on a blockchain, typically minted as NFTs that you hold in a crypto wallet. The two best-known systems are:
- ENS (Ethereum Name Service) — names ending in
.eth, registered on Ethereum. - Unstoppable Domains — names such as
.crypto,.nft,.wallet,.xand.blockchain.
Their primary use is human-readable crypto payments and identity. Instead of asking someone to send funds to a 42-character hexadecimal address, you can give them alice.eth and a compatible wallet resolves it to the right address. The same name can double as a portable, self-owned profile across web3 apps. Some web3 names can also point to a website hosted on IPFS — but, as we will see, reaching that site is not as simple as typing it into Chrome.
A blockchain-based name (often an NFT), such as an ENS .eth name or an Unstoppable Domains .crypto name, used mainly for readable wallet addresses and decentralized identity. It is not delegated in the ICANN root, so it is not a TLD in the traditional internet-wide sense.
Why aren’t they real DNS TLDs?
The defining limitation is reachability. Because web3 names are not in the ICANN root, the name servers and resolvers that power ordinary domain resolution have no idea they exist.
Default browsers cannot open a web3 domain
Chrome, Safari, Firefox and Edge follow only the ICANN root, so they cannot resolve .eth or .crypto on their own. To reach one you need a browser extension, a web3-aware browser (Brave added, then later removed, some support), or a gateway such as a name.eth.link-style service. The catch with a gateway is that it works by routing the lookup through a normal centralized web server — quietly re-centralizing the very thing web3 set out to decentralize.
There is also a real-world naming hazard. .eth is an ENS name on Ethereum — but .et is the genuine ISO country-code TLD for Ethiopia in the actual DNS. They are entirely separate systems, and the visual similarity is a recognized source of confusion. This is exactly the kind of edge case that the single, coordinated authority over who controls TLDs is meant to prevent within real DNS.
| Aspect | Conventional TLD (.com) | Web3 name (.eth, .crypto) |
|---|---|---|
| Lives in | The ICANN root zone (IANA) | A blockchain (Ethereum / others) |
| Opens in any browser? | Yes, with no extra software | No — needs an extension or gateway |
| Main purpose | Reachable websites and email | Wallet addresses, identity, collectibles |
| Record type | Registry delegation (NS records) | NFT / on-chain record |
| Issued by | A contracted registry / registrar | A smart contract |
The twist: ENS is applying to join real DNS
Here is the development that reframes the whole story. Rather than trying to replace the domain system, the web3 naming world is increasingly moving to join it. ENS has announced it will apply for .ens as a traditional ICANN gTLD in the 2026 application round — a deliberate step toward becoming part of the real DNS instead of a parallel system. Unstoppable Domains has likewise signalled a pivot toward traditional DNS integration.
If that succeeds, a name like .ens could eventually resolve in ordinary browsers the way .com does, bridging the on-chain world and the conventional one. It is a striking reversal: the projects that started out positioning blockchain naming as an alternative to ICANN are now lining up to be delegated by ICANN.
Use them for what they are good at
Web3 names are genuinely useful for wallets, identity and as collectibles — just not as a public website address. A web3 name does not give you a site the whole internet can reach the way a real registrar-issued TLD does. The market is also volatile, and some names have seen renewal and ownership disputes, so do your due diligence before paying a premium.
★ Key takeaways
- Web3 TLDs (
.eth,.cryptoand similar) are blockchain NFTs, not ICANN-delegated TLDs. - Default browsers cannot resolve them; you need an extension, a web3 browser, or a gateway (which re-centralizes the lookup).
.ethis not a real TLD — and.etis the genuine ccTLD for Ethiopia, a real source of confusion.- ENS plans to apply for
.ensas a real ICANN gTLD (2026); the trend is to join DNS, not replace it. Great for wallets and identity, not a substitute for a conventional domain.
Frequently asked questions
What is a web3 TLD?
A web3 TLD is a blockchain-based name such as .eth from ENS or .crypto from Unstoppable Domains, usually issued as an NFT. Its main purpose is to give a human-readable label to a wallet address and to act as a decentralized identity. It is not part of the ICANN DNS root, so it is not a TLD in the traditional, internet-wide sense.
Can I open a .eth address in Chrome?
Not by default. Chrome, Safari, Firefox and Edge only follow the ICANN root, so they cannot resolve .eth or .crypto on their own. You need a browser extension, a web3-aware browser, or a gateway such as a name.eth.link-style service, which works by re-centralizing the lookup through a normal web server.
Is .eth a real TLD?
No. .eth is an ENS name on the Ethereum blockchain, not a TLD delegated in the ICANN root. There is also a real-world naming risk: .et is the actual country-code TLD for Ethiopia, which is separate from the blockchain .eth and could cause confusion.
What are web3 domains actually used for?
Their primary use is human-readable crypto payments and identity: sending funds to alice.eth instead of a long hexadecimal wallet address, and using the name as a portable decentralized profile. Some can also point to websites hosted on IPFS, but reaching those sites still requires web3-aware software or a gateway.
Is ENS becoming a real ICANN TLD?
ENS has announced that it will apply for .ens as a traditional ICANN gTLD in the 2026 application round, signalling a move to join the DNS rather than replace it. Unstoppable Domains has also indicated a pivot toward traditional DNS integration. This would let these names eventually work alongside the conventional domain system instead of only on-chain.
Should I buy a web3 domain instead of a normal domain?
They serve different needs. Web3 names are useful for wallets, identity and as collectibles, but they do not give you a website address that the whole internet can reach the way a real TLD does. The space is also volatile, and some names have seen renewal and ownership disputes, so it is worth doing due diligence and not treating a web3 name as a replacement for a conventional domain.