Domain Availability Checker
Check a name on .com, .co.uk, .uk, .net, .org, .io and more at once, with alternatives if it is taken.
About the Domain Availability Checker
Type a name and this checker looks it up on .com, .co.uk, .uk, .net, .org, .io, .co, .dev, .app, .info, .online and .site at the same time (or on the UK, tech or full set of 21 extensions).
Each name is checked in two steps. First DNS: a domain with name servers is registered. Names without name servers are looked up in the registry’s RDAP service – the official, free replacement for WHOIS run by the registries themselves (Verisign for .com, Nominet for .uk and so on). The result is one of: registered, possibly available or could not verify. Short and dictionary names on some extensions are flagged as possible premium names, and extensions with rules (such as .eu or .fr) show who may register them.
When your main name is taken you see who registered it, when it expires, and a list of alternatives – shorter versions, prefixes, suffixes and brandable variations – each checked automatically.
Frequently asked questions
Is “possibly available” a guarantee?
No. It means the registry has no record of the name right now. A name can still be reserved, sold at a premium price or registered by someone else a minute later. Your registrar confirms it at checkout.
Do you record or sell the names I search for?
No. Searches are not sold or shared, and we never register names. Lookups go to public DNS and to the registries’ own RDAP services.
Why does a name show “could not verify”?
The registry did not answer in time, limited the number of lookups, or does not offer a public lookup service. Try again in a few minutes or check at a registrar.