Doma Protocol is a blockchain built for DomainFi that aims to help modernize and unlock liquidity for all domain names. Think of it as turning domain names into composable, programmable assets.

The Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. Its purpose is to map human-readable names like 'alice.eth' to machine-readable identifiers such as Ethereum addresses, other cryptocurrency addresses, content hashes, and metadata. ENS also supports 'reverse resolution', enabling Ethereum addresses to be associated with metadata such as canonical names or interface descriptions. ENS has similar objectives to DNS, the Internet's Domain Name Service, but has a significantly different architecture due to the capabilities and constraints provided by the Ethereum blockchain. Like DNS, ENS operates on a system of dot-separated hierarchical names called domains, with the owner of a domain having full control over subdomains.

D3 is a next-generation domains company building interoperable web2<>web3 domain names. Its goal is to empower and offer secure, decentralized identities, with domain names at the forefront.

Established in 2021, d.id is a pioneer in decentralized identity (DID) systems. The company provides an array of DID-based solutions aimed at promoting community building and digital identity. Their product lineup includes .bit, a barrier-free DID issuance platform for communities and also a DID system for individuals; Voty, the first DID-based community governance system; SoulFrag, the first DID-based reputation management system; and d.id Profile, a DID-based profile for users to showcase milestones and accomplishments. With about 280,000 registered accounts and integration with more than 140 wallets and dApps, d.id is committed to building a trusted and inclusive DID ecosystem.

ZNSConnect is a leading cross-chain Web3 naming service provider, providing seamless digital identity support for more than 25 blockchains. It redefines how users interact with Web3 by offering decentralized, AI-driven identity solutions.

Freename is a TLD and domain name registration platform that allows its users to search for and register any kind of TLD. On Freename, users can build their own Web3 domain ecosystem to generate passive income from royalties.

BRC App is the App for BRC & Bitcoin Ecosystem that support Native .btc Domains, Launchpad, Trading with BTC, Market Intelligence.

AllDomains is a Web3 platform to create, register, and trade customizable Web3 Identities for .everyone. With AllDomains any user can choose not only a name they desire but also the community they wish to associate with, adding a new layer of customization to their Web3 identity. Be it a Token, an NFT collection, or a DAO, everyone can create their own TLD and unite their whole community under a unique brand.

Starknet.id is an identity and naming service for Starknet. Users can mint a Starknet identity for free and connect it to their Twitter, Discord, or GitHub account.

PolkaDomain is a DNS and NFT marketplace built on Polkadot, providing decentralized domain name services. Users can take control of their digital identity and data with PolkaDomain, and claim and save unique domains as NFTs.

AZERO.ID is the official domain name service for Aleph Zero. It will be keeps user wallets and transactions fully private.

EDNS Domains is a decentralized name service that supports most established blockchain networks, offering multichain and crosschain functionalities. It enables users to translate machine byte-code into human-readable names that can seamlessly move across multiple blockchains. EDNS also aspires to be the future omnichain decentralized domain naming service for various Web3.0 demands, including NFTs, Cryptocurrency Wallets, Web hosting, DeFi IDs, and GameFi IDs in the digital world.

SPACE ID is building a universal name service network with a one-stop identity platform to discover, register, trade, and manage web3 domains. It also includes a Web3 Name SDK and API for developers across blockchains, providing a multi-chain name service for everyone to easily build and create a web3 identity.

A3S Protocol is a multi-chain protocol designed to create the next generation of address standards. It enables secure trading, leasing, and escrow of addresses, providing liquidity and integrability, allowing them to be priced as a basic on-chain service.

Berakin is a name service based on Berachain that provides customizable profiles containing aggregated data from users' on-chain and off-chain activities.

TNA is a naming protocol for Bitcoin designed to improve its usability and broaden its array of assets and primitives. Supporting multiple assets, TNA seamlessly integrates with all Bitcoin layer 2 solutions. It utilizes its DA framework, known as the TNA Core, to boost the mainnet’s capacity for managing cross-chain interactions and improving network interoperability.

Spaces is a naming protocol that leverages the existing infrastructure and security of Bitcoin1 without requiring a new blockchain or any modifications to Bitcoin itself. “Spaces” serve as community identifiers that are distributed through an auction process built using existing Bitcoin scripting capabilities. Proceeds generated through auctions are irrevocably burned. Within each Space, users can create “Subspaces,” which serve as trustless individual identities, operating with a high degree of autonomy primarily off-chain but can also submit transactions directly on-chain.

DIDhub is an all-in-one aggregator that support user explore web3 domains. With its aggregation search function, users can manage and monitor their Web3 domains more efficiently, increasing the success rate of their projects.

OpenName is an OmniChain Name Service platform based on LayerZero's cross-chain technology, which allows domain names to be transferred between multiple chains, and allows domain names to have complete control on each chain. Due to the support The features of free suffixes and the cancellation of hierarchical restrictions make OpenName have almost unlimited domain name combinations, which fully meet the needs of users for personalized domain names.

3DNS is a decentralized domain name service (DNS) that can power real web domains. The platform brings .com, .xyz, .co, and other web domains to the blockchain's platform.

Cronos ID is a decentralized identity and communication layer built on Cronos. On a broad level, Cronos ID will give users the ability to send and receive information on-chain, powered by human-readable identifiers.

BNSx is a Bitcoin Name Service System that offer Identity Verification SDKs and Secondary Domain Service. The BNSX project aims to revolutionize decentralized identity solutions on Bitcoin's Layer 2 networks.

Klaytn Name Service is a decentralized on-chain name service on the Klaytn blockchain, inspired by Ethereum Name Service.The main functionality of KNS is mapping a human-readable domain such as 'kns.klay' to Klaytn addresses and its related metadata. Also, by setting primary domains, you can map a Klaytn wallet address to a domain (reverse resolution).

Eternal Digital Assets is a Web3 domain name trading market, further lining up to dominate the blockchain-based toplevel domains (TLDs) market. Eternal Digital Assets owns and manages 200+ toplevel Web3 TLDs such as .youtuber, .ourname, .myname, and .hollywood. LikeWeb2, users can register new domains under these unique TLDs (e.g.,bob.myname, jayz.youtuber, rickactor.hollywood, etc.)

BTC Domain is a bitcoin domain name service platform where users can register a name and associate it with their bitcoin address. BTC Domain provides an experience similar to the Ethereum Name Service (ENS) by providing a wide range of name-related services, including name registration, name resolution, and other related services.".btc" domains are inscribed as formatted JSON text onto the Bitcoin mainnet, with each domain being a unique inscription that is akin to a BTC NFT.

Sui Name Service (SuiNS) is a service that simplifies users' web3 identities, websites, and wallets.

LINKKEY is a Web3 social open protocol that contains a decentralized user name system for SNSs. It supports the issuance of NFT identities for individuals and NFT identities for communities. Users holding the same NFT will automatically create group chats.

The Butterfly Protocol is a cross-chain, decentralized Domain Name System that offers Non-Fungible Token domains.

NameDAO is a community-led, platform-built on Solana. Anyone can propose, fund, and have a new top-level domain (TLD) extension (e.g. .fam, .fam, .fa vibe）。 Think of it as a "decentralized gTLD crowdfunding platform", powered by cryptocurrency.

Sonic Name Service 是基于 Sonic 区块链上的去中心化、用户友好的域名系统。SNS 将使用户能够将人类可读的名称（以 、 结尾）映射到区块链地址、智能合约、网站等。