# Web3 Subdomains

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All users can register their own Web3 Subdomains from any Web3 Domain which has been staked by its owner. When registering a Web3 Subdomain, the registration fee and terms (renewable or no-expiry) have been set by the Web3 Domain owner and at time of registration have **locked terms**.&#x20;

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**Locked terms** means if you register a Web3 Subdomain from a Web3 Domain that has no-expiry (is expiry-less) at time of registration, and the Web3 Domain owner changes for new registrations to occur a renewal fee, because you registered when registrations provided Web3 Subdomains with no-expiry, your Web3 Subdomain will continue to have no expiration date.\
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This is also the case if you register a Web3 Subdomain with for example a $10 yearly renewal fee and the Web3 Domain owner changes this to be a $50 renewal fee. As you registered at a time when the renewal fee was $10, your yearly renewal fees will continue to be $10.
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Owners of Web3 Subdomains can utilize our core protocol utility by :&#x20;

* **Using your Web3 Subdomain as your Web3 Identity**\
  Resolve your Web3 Subdomain against your Wallet Address for over 150 cryptocurrencies, use as your decentralized website address, your decentralized chat handle and more.