Domains Web3

LIVEA curated portfolio of premium domains

Distinctive names for extraordinary ideas.

Brandable domains across AI, Superintelligence, technology, finance and culture, each one selected for presence, clarity and the room it gives a big idea to grow.

Featured from the vault01 / 06
4Si.xyz logo
Superintelligence

4Si.xyz

↗

Sectors

Four worlds.
One vault.

Every name in the portfolio sits in a sector with momentum. Pick a direction to filter the collection.

The collection

Find your
next beginning.

Search by name, idea or industry. Open any domain for its full profile, story and related names.

All sectors · All extensions

Inside the vault

A good name makes room for a big idea.

DomainVault brings together a considered collection of names across intelligence, technology, finance and creative culture. Each one is a different kind of starting point.

From SI (Superintelligence) to a single word with character, the collection is built around possibility. You bring the vision.

Explore all names ↗

Acquisition

From first look
to first launch.

A simple path from the name that clicks to the brand you build on it.

01DISCOVER

Find the name

Browse by sector, extension or idea. Every domain has its own profile with a story, use cases and related names.

02CONNECT

Go to the listing

Every profile links straight to the name on Afternic, Sedo and Unstoppable Domains, so you can buy or make an offer where you prefer.

03BUILD

Make it yours

Point the name at your product and give your idea an address with the presence to match it.

FAQ

Questions, answered.

Everything you need to know about exploring and acquiring a name from the vault.

Browse the collection →
How do I explore a domain?

Open any card in the collection to see the domain’s dedicated page, its logo, a tailored description and related names.

What does “uncontested” mean for .xmr?

.xmr has been applied for in ICANN’s 2026 new gTLD round, and no other applicant applied for the same string. That makes it uncontested, so it won’t need to be decided by an auction. The application still has to pass ICANN’s evaluation before .xmr can be approved as a top-level domain.

How do I acquire a name?

Open the domain’s profile and choose Afternic, Sedo or Unstoppable Domains. Each link takes you to that marketplace’s listing, where you can buy the name or make an offer.

Are prices listed?

Prices aren’t shown on DomainVault. You’ll find the current price or offer options on each marketplace listing.

Why modern extensions?

Extensions such as .digital, .pro, .tech and .xyz let a short, meaningful word carry its category with it, so the whole name reads as a complete brand at a glance.

A name is only the beginning

Give your idea
an address.

Explore a portfolio of premium domains, curated for what’s next.

Enter the collection →
WEB3The on-chain collection

Own your name on-chain.

A private collection of Web3 domains across .web3, .x, .xmr, .onchain, .blockchain, .kingdom and .go: wallet-ready names for protocols, AI agents, communities and the people who build them.

Extensions
Featured token01 / 08
SiAgents.web3 logo
AI & Agents

SiAgents.web3

↗

Extensions

Every extension.
One identity layer.

Each extension gives a name a different voice. Pick one to filter the collection.

The Web3 collection

Names that live
on-chain.

Search by name, idea or theme. Open any name for its own profile, logo and story.

All themes · All extensions

Why Web3 names

One name.
Everywhere on-chain.

A Web3 domain is a readable name you hold in your own wallet. It can stand in for long addresses and travel with you across the apps that support it.

  • Readable payments

    Share a name like capybara.x instead of a long wallet address.

  • Portable identity

    One name for your profile, reputation and logins in apps that support it.

  • Decentralised websites

    Point the name at a site hosted on decentralised storage.

  • True ownership

    The name is a token in your wallet, so it’s yours to keep, move or sell.

resolverlive

› resolve capybara.x

ETH
0x7a3f…c91e
BTC
bc1q9f…k2m4
Website
ipfs://bafy…
Owner
Your wallet
Tokencapybara.x

Illustrative records

Acquisition

From first look
to your wallet.

Three steps from the name that clicks to a name you hold.

01DISCOVER

Find the name

Browse by extension, theme or idea. Every Web3 name has its own profile with a logo, a story and related names.

02ACQUIRE

Go to the listing

Each profile links straight to the name on Unstoppable Domains and OpenSea, where you can buy it or make an offer.

03HOLD

Make it yours

The name arrives in your wallet. Connect your addresses and profile, and it becomes your on-chain identity.

FAQ

Web3 names, explained.

What to know before you add an on-chain name to your wallet.

Browse Web3 names →
What is a Web3 domain?

A Web3 domain is a name, such as capybara.x, that lives on a blockchain as a token in your wallet. It can replace long wallet addresses and act as your identity in apps and wallets that support it.

How do I acquire a name?

Open the name’s profile and choose Unstoppable Domains or OpenSea. Each link takes you to that marketplace’s listing, where you can buy the name or make an offer.

Do I need a crypto wallet?

Yes. A Web3 name is held in a wallet. The marketplace will guide you through connecting one, or creating one if you’re new.

Are there renewal fees?

Many Web3 domains are bought once, with no yearly renewal. Check the marketplace listing for the exact terms of each name.

Are prices listed?

Prices aren’t shown on DomainVault. You’ll find the current price or offer options on the marketplace listing.

A name is only the beginning

Claim your name
on-chain.

Explore a private collection of .web3, .x, .xmr, .onchain, .blockchain, .kingdom and .go names.

Enter the Web3 collection →

Contact

Let’s talk about
your next name.

A question about a name, a portfolio deal or a partnership? Send a message and the reply comes straight to your inbox.