So nutzt du: Domain Availability Checker
- Type a name without an ending (for example
mybrand) to check 14 popular endings, or enter full domains separated by commas or spaces. - Click Check. Each domain is looked up in its registry’s RDAP service and confirmed with DNS.
- Available names are listed first. Taken names show their registration and expiry dates, with a link to the full WHOIS.
- Register the name you like with any registrar — availability can change at any moment.
How the check works
Every domain ending (TLD) is run by a registry that keeps the list of registered names. Most registries publish it through RDAP, the modern replacement for WHOIS. If the registry has a record, the name is taken. Some registries (including .io, .co and .me) don’t offer RDAP yet, so the tool also asks DNS: a registered domain almost always has nameservers, while an unregistered one returns “no such domain” (NXDOMAIN).
| Result | Meaning |
|---|---|
| Available | Neither the registry nor DNS knows the name. |
| Probably available | DNS has no record, but the registry couldn’t be asked directly. Very likely free. |
| Taken | The registry has a record or the domain has nameservers. Check its expiry date in the WHOIS. |
Good to know
- Premium and reserved names can show as available but cost more, or not be sold at all.
- Expired domains go through grace and redemption periods (often 30–75 days) before they become available again.
- This tool doesn’t sell domains and never shares your searches, so nobody can front-run the names you look up.
Related: WHOIS lookup for the owner and expiry date, Who Is Hosting and DNS lookup.
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