ENS works with two kinds of names: .eth names you register through the ENS App, and DNS domains (like .com, .org, or .xyz) you import from where you already own them.

A .eth name is native to ENS — you register it in the ENS App and pay an annual ENS registration fee. A DNS name is a regular internet domain (like .com, .org, or .xyz) that ENS lets you import. You can't buy a DNS domain through ENS — you bring one you already own.

Once a DNS name is imported, it behaves like a .eth name inside ENS. Both types point at a wallet, hold records like avatar and social handles, and can be set as your Primary Name.

No. Imported DNS names have no ENS registration fees and no ENS renewals — you only pay your DNS registrar. As long as your DNS domain is active with that registrar, the ENS side keeps working.

A .eth name is the opposite — there's no DNS registrar involved, and you pay the ENS annual fee directly. See ENS Pricing for the full breakdown.

ENS ownership of a DNS name follows DNS ownership. If your DNS domain expires or transfers to someone else, the new DNS owner can claim control of the matching ENS name. Keep your DNS domain active to keep control of your ENS name.

No. ENS supports DNS-name imports but doesn't sell DNS domains. To get a DNS name, buy it from a DNS registrar (the same place you'd buy any .com or .org).

To register a name through ENS itself, register a .eth name — see How do I register a .eth name?