Skip to content
Devtoolry

Domain Availability Checker

Check if a domain name is available in .com, .io, .ai, .in and other endings at once, straight from the registries (RDAP and WHOIS), with no registrar upsell.

Something not working, or missing a feature? Send feedback

About the Domain Availability Checker

The Domain Availability Checker tells you whether a domain name is free to register, in one ending or across a dozen at once (.com, .net, .org, .io, .co, .dev, .app, .ai, .in and more). It asks each ending's registry directly over RDAP, or WHOIS where a registry has no RDAP, instead of a registrar's search box. Taken names link to their WHOIS record so you can see when they expire.

Our server asks the registry of each ending (RDAP, or WHOIS where a registry has no RDAP) whether the name exists. Names are not stored or shared with registrars, so nobody can register them ahead of you because you searched.

How to use the Domain Availability Checker

  1. Type a name (mybrand) to check it in every selected ending, or a full domain (mybrand.io) to check that one first.
  2. Pick the endings you care about.
  3. Press Check availability. Results appear as each registry answers.
  4. Register an available name at any registrar; for taken names, open WHOIS to see the owner's registrar and expiry date.

Works well with the Domain Availability Checker

Frequently asked questions

Is it safe to search domain names here?

Yes. Names go only to the registry of each ending, which already answers public RDAP and WHOIS queries; they are not stored or passed to registrars. That avoids the worry of a search being used to register a name before you do.

It says available, but the registrar asks a high price. Why?

Registries reserve some names and sell short or dictionary words as premium names. They show up as "not registered" in RDAP, but the registrar charges the premium price. The registrar's checkout is final.

A name I want is taken. What now?

Check its WHOIS record: if it expires soon and is not renewed, it will be released after the grace and redemption periods. Otherwise try another ending, add a short word (get, app, hq), or contact the owner through the registrar.