How the availability signal works
The tool asks the registry responsible for the domain's extension for its public RDAP record. A 404 response means no registration exists on file — the strongest public signal that a name is free.
Free domain utility
Domain Availability Checker
Find out if a domain name is free to register. Type any domain and get an instant answer — plus automatic suggestions showing where else the same name is available.
Check domain availability
An “available” result means no registration record was found in public RDAP data — it is not a guarantee the domain can be registered. Premium, reserved or recently expired names may still be unavailable. Confirm with your registrar before you plan around a name.
Which extensions are covered
Any extension listed in IANA's public RDAP directory, including .com, .net, .org, .ai, .dev, .app, .xyz and .info. Country-code extensions like .pk are not covered — use PKNIC's official lookup for those.
How to use the Domain Availability Checker
- Type a domain like example.com — or just a name like mybrand to check it across every supported extension at once.
- Press “Check Availability” to look up the public RDAP record for that domain.
- Review the result: green means no registration record was found, red means the domain is taken. The same name is automatically checked across other popular extensions, so you can see at a glance where else it is available.
- Confirm any name you want with the registrar where you plan to register it before making plans.
Why Domain Availability Checker matters
Naming a business, product or campaign starts with the domain — and the best names go fast. A quick availability check stops you from designing a logo, printing cards or launching ads around a name someone else owns. Founders check names before the pitch deck is done, agencies verify client brand names during naming, and domain investors scan for opportunities.
Domain Availability Checker FAQs
How does this checker know if a domain is available?
It queries the public RDAP record for the domain through the registry responsible for its extension. If the registry returns no record (HTTP 404), the domain has no registration on file and is reported as available. If a record exists, the domain is taken.
Is an “available” result a guarantee I can register it?
No. RDAP shows the registry's public record, but premium, reserved, auction, or recently expired domains can still be unavailable for normal registration. Always confirm with the registrar where you plan to buy the domain before assuming it is yours to take.
Which extensions can I check?
Any extension listed in IANA's public RDAP directory, which covers most popular extensions including .com, .net, .org, .ai, .dev, .app, .xyz and .info. Some country-code extensions, including .pk, are not covered by public RDAP.
Can I check .pk domains?
Not through public RDAP — Pakistan’s .pk registry does not publish its records there. For .pk names, use PKNIC’s official WHOIS lookup instead.
This tool reads public registration data and does not contact a registrar or change domain settings.