How to use the 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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- MIME Type Lookup — Search 200+ file extensions and MIME types — .webp, .woff2, .webmanifest, application/wasm … — or drop a file to detect its real type from its first bytes.
Frequently asked questions
How do I check if a domain name is available?
Type the name without an ending (for example mybrand) and click Check. The tool tests 14 popular endings at once and lists the free ones first.
Is this domain checker accurate?
Answers come from the registries themselves (RDAP) and are confirmed with DNS. Availability can still change between your search and your purchase, and premium names may cost extra.
Can I check many domains at once?
Yes — paste up to 20 full domains separated by commas, spaces or new lines.
Do you register domains or sell my searches?
No. devpack doesn’t sell domains, doesn’t store your searches and doesn’t share them with registrars.