Type in a name and see which of 24 popular domain extensions are already registered for it, from .com and .net to .ai, .io and the main country codes. You can enter just the name, like acme, or a full domain like acme.com.
What the count tells you
Every registration costs somebody money every year. So when a name is taken in 20 of 24 extensions, that’s 20 separate owners who decided it was worth paying for. It’s one of the plainest demand signals there is for a domain name, and it’s why domain investors look at it before they buy.
A high count also tells a brand something. If you’re about to launch under a name that’s registered almost everywhere, expect lookalike sites, confused email and a harder time defending it later. A low count means you can still grab the extensions that matter to you.
How the check works
For each extension the checker asks the internet’s DNS whether the domain exists. If DNS finds nothing, it double-checks with the registry, because some domains are registered but have no nameservers set up yet. A registered domain links through to its site so you can see what’s there.
“Looks available” is a good sign, but it isn’t a guarantee. Registries hold back some names as premium or reserved, and a domain that has just expired can sit in a grace period for weeks. Confirm with a registrar before you count on buying one.