Access The Future


Unique Name

The globally unique .op domain name replaces the meaningless, unreadable, and unmemorable long addresses.


Aggregated Identity

ONS binds different addresses in a multi-chain ecosystem. It brings together fragmented identities into one.


On-Chain Security

ONS is built on smart contracts on the Optimism blockchain, meaning it doesn't suffer from the insecurity of the DNS system.



Data Integration

ONS links Web2/Web3 and integrates on-chain and off-chain data. It enhances the interactive experience of gaming, social, DAO, community governance, etc.


ONS Features

The features that you will get by using Optimism Name Service

  • Web3 Name Card
  • NFT
  • Human Readable Identifier
  • DAO
  • Better Interaction
  • Decentralized Hosting
Building The Metaverse For Next Gaming World

Web3 Name Card 1

Individuals or organizations can use ONS to integrate blockchain accounts to one .op name.Display on-chain and off-chain data to show who you are and what you did.



Artists can use ONS to build their own brands. Subdomains can link the address of their NFT for buyers to check if the one they are going to buy is the Artist’s work. You can build your NFT collections by link NFTs to PNS.

Human Readable Identifier 3

Use a human readable and memorable name to replace your addresses. Using your ONS rather than the address in other dapps.

Human Readable


Using subdomains as member certificates of organizations. For example, Zeus from Olympus, who owned olympus.op, can get a subdomain zeus.olympus.op issued by olympus.op. You can trust Zeus is from Olympus if Zeus has that subdomain.

Better Interaction 5

Use ONS as a unified portal for social accounts of projects or users on web3.Having a ONS help others to recognize, remember, and find you. That will enhance user interactions.


Decentralized Hosting 6

Each Optimism domain can be used for decentralized web hosting with IPFS with a content hash record and ONS. This means users can store any files online and a unique hash to identify & retrieve those files. Once a file or directory is hashed and pinned, any IPFS node can retrieve it!

Building The Metaverse For Next Gaming World Building The Metaverse For Next Gaming World
Our Roadmap


Phase 01

* Market Research and Analysis * Development * Website and Social Media Launch * Initial marketing

Phase 02

* Testnet V2 Website Launch * Testnet NFT campaigns * Partnership announcements * Development Mainnet V3 Website

Phase 03

* Influencers Marketing * Mainnet V3 Website Launch * Create an NFT for .op Domain holders

Phase 04

* TGE * DEX Listing * Marketing campaign * Launch Staking Platform

Phase 05

* List on NFT Marketplace * DAO and builder on-boarding * CEX Listing * Launch Trading Competition

Phase 06

* Website UX/UI Update * Debit Card Feature released * Insertion into the Metavers * Partnership, More Exchange Listing and more program in the future

OpNames FAQ


To register a new .op name, what are the format requirements?

- Name length: at least 3 characters.
- Case sensitive: only lowercase letters allowed, no capital letters.
- Certain characters including “:”, “/” are not supported.
- Emojis are generally supported.
- Different languages are generally supported.

Is my .op name only for storing a Optimismchain address?

No, you can store the addresses of over 100 blockchains, a content hash of a decentralized website, profile information such as an avatar and Twitter handle, and more.

Which wallets and dApps support ONS so far?

While Optimismchain is still in its early stages, we aim to integrate .op domain names with all native and trusted Optimismchain platforms, this includes wallets, block explorers, NFT platforms, and dApps.

What happens if I forget to extend the registration of a name?

After your name expires, there is a 90-day grace period in which the owner can't edit the records but can still re-register the name. After the grace period, the name is released for registration by anyone with a temporary premium which decreases over a 28 days period to its default pricing (see above). The released name continues to resolve your OP address until the new owner overwrites it.

Once I own a name, can I create my own subdomains?

Yes. You can create whatever subdomains you wish and assign ownership of them to other people if you desire. e.g. your own Optimismchain.op you can create subdomains like jack.Optimismchain.op, henry.Optimismchain.op and so forth.

What is a primary name? And why shall I set a primary name?

A primary name makes your Optimism address point to your .op name (a process formally called Reverse Resolution), such that you will be able to see your .op name displayed in partner dApps, replacing the complex addresses to achieve an improved interface.
Setting your primary name only requires a small amount of gas fee and we encourage everybody to do it, as it is a vital step to make your .op name a central piece to your web3 identity.

What does it cost to register a .op domain?

Currently, registration costs are set at the following prices:

- 5+ character .op names: $5 in ETH per year.
- 4 character .op names: $169 in ETH per year.
- 3 character .op names $555 in ETH per year.

3 and 4 character names have higher pricing to reflect the small number of these names available.

What is NFT metadata? And why do I need to refresh it on NFT marketplace sometimes?

NFT metadata is a set of data that describe the characteristics and display the content relating to the NFT, including for example the .op skin design image. If you find your .op NFT image is not properly displayed on NFT marketplace, or your NFT is not properly categorized, you can simply click the “Refresh Metadata” button and refresh the page.

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