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Web3 Domain Checker

Search availability across Ethereum (ENS), Solana (SNS), and Unstoppable Domains. Includes syntax validation and security checks for zero-width characters.

Supported: .eth, .sol, .crypto, .nft, .x, .wallet, .polygon
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⚠️ Security Warning: This name contains potential "homoglyphs" (look-alike characters) or non-standard Unicode symbols. This is a common phishing vector. Proceed with caution.
Start typing to check domain availability and syntax validity.

Name Analysis

Length 0 chars
Character Type -
Est. ENS Cost -
Validity Valid

Did you know?

3-character .eth domains (e.g., abc.eth) cost $640/year to renew, while 5+ characters cost only ~$5/year. Short names are premium assets.

The Definitive Guide to Web3 Domains

Web3 domains (like .eth for Ethereum or .sol for Solana) replace complex hexadecimal wallet addresses (e.g., 0x71C...) with human-readable names. They serve as your identity across the decentralized web, allowing you to receive payments, host decentralized websites (via IPFS), and log in to dApps.

Understanding Different TLDs

  • .ETH (Ethereum Name Service): The gold standard. Requires annual renewal fees but offers the widest integration. Governance is decentralized via the ENS DAO.
  • .SOL (Bonfida/SNS): The primary naming service for the Solana ecosystem. Essential for Phantom wallet users.
  • .CRYPTO / .NFT (Unstoppable Domains): These domains are "owned forever" with a one-time fee (no renewals). They exist as NFTs on Polygon or Ethereum.

Safety First: Homoglyph Attacks

A common scam in Web3 involves "homoglyphs"—characters that look identical but have different Unicode values (e.g., a Cyrillic 'a' vs. Latin 'a'). Scammers register these look-alikes to trick users into sending funds to the wrong address. This Web3 Domain Checker includes a built-in security analysis engine to flag potential non-ASCII characters or zero-width joiners that might indicate a spoofing attempt.

How Availability is Checked

Note: This tool uses a sophisticated local simulation engine. Real-time availability on the blockchain requires connection to an Ethereum Node. This tool performs strict syntax validation (checking length, allowed characters, and prohibited patterns) and simulates availability based on deterministic hashing of the name to demonstrate how a real registrar functions. It also maintains a local database of high-profile "Taken" names like "vitalik.eth" or "paradigm.eth".

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