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Registry lock is an enhanced domain security measure in which critical domain changes are blocked at the domain registry level. This protection helps prevent unauthorized transfers, DNS changes, contact updates, and other important operations unless additional verification and special procedures are completed.
In simple terms, registry lock is a higher level of protection than a standard registrar lock. While registrar lock is managed through the registrar, registry lock involves the registry and is typically used for high-value or critical domains such as major brands, large companies, government entities, media, and critical services. Availability and unlock procedures depend on the domain zone and registry policy.
It is an extra layer of domain protection at the registry level that blocks critical changes and makes unauthorized transfers or modifications much harder.
Registrar lock is protection at the registrar level, while registry lock is stronger protection at the registry level. Registry lock usually requires additional verification procedures and provides a higher level of control.
It is especially useful for owners of critical domains: well-known brands, e-commerce businesses, banks, media organizations, government entities, and infrastructure projects. Losing control of such a domain can lead to serious financial and reputational damage.