If it says "Available", can I definitely buy it?

Not always. While an NXDOMAIN result means the domain has no DNS records, it might still be registered and simply "parked" or held by someone. Check with a registrar to be certain.

How does this differ from a registrar search?

Registrars query the central WHOIS database. This tool queries the live DNS system, making it faster but slightly less definitive regarding registration ownership.

What does NXDOMAIN mean?

Non-Existent Domain. It is the official DNS response indicating that the queried domain name does not exist in the DNS zone.

Domain Name Checker

Quickly check if a domain name is registered or potentially available.

What is the Domain Name Checker?

The Domain Name Checker queries DNS records to quickly determine if a specific domain name is currently registered and active, or if it might be available for purchase.

How to use it

Type in the domain name (e.g., example.com).
Click "Check Availability".
Review the DNS status to see if it is actively resolving or returning NXDOMAIN.

Domain Name Checker

What is the Domain Name Checker?

How to use it

Frequently Asked Questions