What Namecoin does

Namecoin is an experimental open-source blockchain project founded in 2011 in Leipzig, Germany, and was the first fork of Bitcoin. It functions as a decentralized key/value pair registration and transfer system, operating as a merge-mined sidechain that derives approximately 95% of Bitcoin's hashrate through SHA-256d merged mining. The project's primary product surface is the .bit Special-Use Top-Level Domain (suTLD), which provides censorship-resistant domain name registration outside the ICANN system, alongside Namecoin Identities (NameID) for attaching GPG keys, OTR keys, email addresses, and Bitcoin/Bitmessage addresses to human-meaningful names. The technology stack includes Namecoin Core (full node, based on Bitcoin Core), ncdns (memory-safe Go DNS resolver), Encaya (decentralized TLS certificate validation via DANE-TA, AIA, and PKCS#11 without browser patching), Electrum-NMC (SPV wallet), ConsensusJ-Namecoin (Java alternative implementation), and Encasha (off-chain SSHFP records extension), plus tooling such as ncgencert and sockstrace.

Namecoin serves privacy advocates, Tor Onion Services users, security-conscious website operators, and blockchain developers who require censorship-resistant naming, MITM-resistant TLS, and decentralized identity without trusted third parties. The project explicitly avoids backdoor mechanisms, contrasting with competitors such as ENS (4-of-7 multisig) and Unstoppable Domains (centralized minting). It was the first solution to Zooko's Triangle and remains the longest-running production sidechain deployment.

The business model is non-commercial. Namecoin generates no revenue: the 0.01 NMC name registration fee is burned rather than collected, and miners earn block rewards (50 NMC, halving every 210,000 blocks) and transaction fees that flow to the merge-mining pools rather than to the project. Operations are funded by grants from NLnet Foundation (multiple NGI programs), European Commission DG CONNECT, Tor Project (via Outreachy), Software Freedom Conservancy, and miscellaneous donors including F2Pool, Handshake, Power Up Privacy, Cyberia, Cypher Market, and Autonomous Worlds Ltd (Xaya). The only quantified funding round on record is a $33,506 grant from NLnet Foundation dated 2017-05-19. Go-to-market is community-led and event-driven, with no traditional sales motion; adoption is organic via GitHub, Matrix/IRC, the project forum, and conference participation at FOSDEM, Chaos Communication Congress, GCER, and similar events.

Name

Namecoin

Legal name

Namecoin

Website

https://namecoin.org

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Namecoin is an open-source, Bitcoin-derived blockchain project (founded 2011) that operates the censorship-resistant .bit top-level domain and decentralized identity system via merge-mined sidechain consensus. It serves privacy advocates, Tor users, and security-focused operators, and is funded by grants rather than commercial revenue.

Ownership category

akta.pro rank

Product category

Decentralized Naming System (Blockchain-based DNS and Identity)

NAICS

Software Publishers (5132), Lessors of Nonfinancial Intangible Assets (except Copyrighted Works) (53311)

SIC

Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

Decentralized Identity (DID) & Identity Wallets (DID methods, DIDComm, identity agents) (FSAPACAG)

akta.pro secondary industry

Cross-Chain Identity & Naming (multi-chain DID, ENS cross-chain resolution) (FSAPAKAH)

Keywords

• Decentralized DNS
• Blockchain naming
• Cryptocurrency protocol
• Decentralized identity
• Censorship-resistant domains

Headquarters

HQ city

Leipzig

HQ country

Germany

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure, Others

Revenue model

1. Mining Revenue: Namecoin miners earn block rewards (currently 50 NMC per block initially, halving every 210,000 blocks) plus transaction fees. Since Namecoin is merge-mined with Bitcoin, miners can earn Namecoin rewards at no additional electricity cost.
2. Name Registration Fees (Burned): Name registration incurs a 0.01 NMC fee that is destroyed by the transaction (not given to miners). This serves as a rate-limiting mechanism to disincentivize squatting rather than as revenue.
3. Donations and Grants: The project is funded through donations and grants from organizations including NLnet Foundation (multiple programs), European Commission DG CONNECT, Tor Project (via Outreachy), Software Freedom Conservancy, Handshake, and individual donors. No commercial revenue model exists.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Namecoin is an experimental open-source technology that functions as a key/value pair registration and transfer system based on Bitcoin, providing decentralized DNS via the .bit Special-Use Top-Level Domain, decentralized TLS (HTTPS) certificate validation backed by blockchain consensus, human-meaningful Tor .onion naming, and an identity system (NameID) for attaching GPG/OTR keys and other attributes to human-readable names. It operates as a merge-mined sidechain with Bitcoin, using SHA-256d to inherit approximately 95% of Bitcoin's hashrate.

Product overview

Namecoin is an experimental open-source blockchain-based naming system that functions as a decentralized DNS and identity registry. The core product consists of Namecoin Core (full node) built as a fork of Bitcoin, which secures name/value pair registrations via merge-mined proof-of-work consensus. The product suite includes ncdns (DNS resolver for interoperability with standard DNS), Encaya (TLS certificate validation using DANE-TA via blockchain consensus), ncp11 (PKCS#11 module for browser integration), DNSSEC-HSTS WebExtension (SSLStrip protection), and NameID (identity system for GPG/OTR keys). Additional tools include Electrum-NMC (lightweight SPV wallet), ncgencert (TLS certificate generation tool), ConsensusJ-Namecoin (Java node implementation), sockstrace (network debugging), and Encasha (off-chain SSHFP records). The .bit suTLD provides censorship-resistant domain names secured by blockchain rather than ICANN.

Differentiator

Problem solved

Functional benefit

Products and services

• Namecoin Core Full node implementation of Namecoin, based on Bitcoin Core with modifications for key/value pair registration and transfer. Downloads and validates the entire blockchain to enforce all Namecoin consensus rules and provide maximum security.
• ncdns Memory-safe Go-based DNS resolver that queries the Namecoin blockchain and returns DNS records, enabling Namecoin to interoperate with standard DNS.
• Electrum-NMC Lightweight SPV (Simplified Payment Verification) wallet for Namecoin that downloads only block headers plus relevant transactions, supporting anonymous name resolution when Tor is enabled.
• Encaya Namecoin's TLS implementation using a safe subset of DANE-TA, providing MITM-resistant certificate validation via blockchain consensus and AIA/PKCS#11 for mainstream browser interoperability without browser patches or TLS interception.
• NameID Identity system allowing users to attach identity information such as GPG keys, OTR keys, email addresses, Bitcoin addresses, and Bitmessage addresses to a human-meaningful Namecoin name.
• ncgencert (formerly generate_nmc_cert) Tool for generating Namecoin TLS certificates. Creates private CA certificates whose public keys are stored in the blockchain, then issues TLS certificates from that CA.
• .bit Domain The Special-Use Top-Level Domain (suTLD) operated by Namecoin, providing censorship-resistant domain name registration and hosting secured by blockchain consensus rather than ICANN.

Quantifiable outcome

• Hashrate approximately 95% of Bitcoin's, occasionally exceeding Bitcoin's hashrate
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature8 records

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Ethereum Name Service (ENS): Decentralized naming service for human-readable .eth names, wallet addresses, and content hashes. Closest direct competitor to Namecoin in the blockchain-based naming space, with massively larger adoption and Ethereum ecosystem integration.
• Handshake: Decentralized, permissionless naming protocol where owners of top-level domains own the naming system itself. Direct competitor to Namecoin's .bit TLD; the project even airdropped tokens to Namecoin, signaling ecosystem overlap.
• Unstoppable Domains: NFT-based domain provider selling human-readable crypto domains usable for wallets and websites. Direct competitor offering similar user-facing naming products, though with a centralized minting model that contrasts with Namecoin's backdoor-free design.
• GNU Name System (GNS): Decentralized, censorship-resistant replacement for DNS built on a distributed hash table rather than blockchain. Competes with Namecoin on the same core problem (decentralized naming) using a different architecture, and shares the FLOSS/privacy-advocacy user base.
• Emercoin: Blockchain-based decentralized DNS and identity platform with .emc and .coin TLDs. Direct technical peer to Namecoin in the altcoin-based naming space, targeting the same censorship-resistance and identity use cases.

Emerging players

• Stacks (Blockstack): Bitcoin-anchored L2 providing smart contracts and decentralized identity/naming (BNS) on Bitcoin. Overlaps with Namecoin in the Bitcoin-anchored naming space, with a much heavier focus on app development tooling.
• Sovrin Foundation: Self-sovereign identity and verifiable credentials network built on distributed ledger technology. Overlaps with Namecoin's NameID identity attachment use case, though Sovrin focuses on credentialing rather than DNS-style naming.

Others

• Tor Project: Privacy network providing .onion hidden services. Namecoin explicitly supports human-meaningful .onion naming and receives funding from the Tor Project, making Tor a closely adjacent ecosystem partner and partial use-case substitute.
• IPFS / Protocol Labs: Decentralized storage and content-addressed network. Adjacent in the broader decentralized web stack — Namecoin's .bit domains can resolve to IPFS content, and both target censorship-resistant publishing.

Broad incumbents

• Let's Encrypt: Large free TLS certificate authority — the centralized model that Namecoin's Encaya DANE-TA implementation explicitly competes against by removing reliance on trusted CAs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/NamecoinDotInfo
• GitHubgithub.com/namecoin

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Namecoin