Domain Name Availability Checker
Check whether a name is free on the domain endings startups actually use, all at once. Type the name you want and this checker asks each official registry directly through RDAP, the registration data service that replaced WHOIS, so a "registered" answer comes from the source rather than a reseller. For endings whose registries do not run RDAP, such as .io and .co, it falls back to a DNS lookup and marks the result as likely rather than certain. Nothing is reserved or sold here, and we never send your search to a registrar.
How to use Domain Name Availability Checker
- Type the name you want, without the ending (for example: launchpad).
- Pick the endings to check; .com, .io, .ai, .app and .dev are selected by default.
- Press Check names. Registered means someone owns it; Available means the registry has no record of it.
Frequently asked questions
Is "available" a guarantee I can buy it?
No. It means the registry has no registration for that name right now. Some names are reserved or priced as premium, and someone could register it before you, so confirm at a registrar before you plan around it.
Why do .io and .co say "likely available"?
Their registries do not offer RDAP, so we check DNS instead. A name with no DNS records is usually unregistered, but a registered name with no DNS set up can look the same.
Do you sell or reserve the domains I search?
No. We do not sell domains and we do not store or pass on your searches.
What is Domain Name Availability Checker?
Check whether a name is free on the domain endings startups actually use, all at once. Type the name you want and this checker asks each official registry directly through RDAP, the registration data service that replaced WHOIS, so a "registered" answer comes from the source rather than a reseller.
Is Domain Name Availability Checker free to use?
Yes. Domain Name Availability Checker is completely free, with no sign-up and no usage limits.
Does Domain Name Availability Checker work in a web browser?
Yes. Domain Name Availability Checker runs in any modern web browser. There is nothing to download or install.
Is Domain Name Availability Checker any good?
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