Domain Registration Lookup
Look up domain registration dates, registrar, nameservers, and status via RDAP.
About the Domain Registration Lookup
Domain Registration Lookup returns public registration data for a domain: registrar, registration and expiry dates, nameservers, and status flags. It uses RDAP (Registration Data Access Protocol) over HTTPS, the modern replacement for classic WHOIS on port 43.
RDAP responses are structured JSON from the registry or registrar responsible for the TLD. Our server loads the IANA bootstrap file to find the correct RDAP endpoint, then queries it directly. No paid lookup API is involved.
The domain you enter is sent to our server for the query and is not stored. Some TLDs redact contact details for privacy; this tool focuses on technical registration fields that remain public in RDAP.
Use this alongside DNS Lookup when migrating a domain or verifying nameserver cutover before a mail or site launch.
Reach developers and designers who use these tools every day. Privacy-first, no trackers.
Frequently asked questions
How is this different from WHOIS?
RDAP is the standardized HTTPS successor to WHOIS. It returns JSON instead of unstructured text. This tool uses RDAP exclusively; there is no port 43 query.
Why is contact information missing?
Many gTLDs and registrars redact registrant contact data in public RDAP for privacy (GDPR and similar policies). Registrar, dates, nameservers, and status are still usually available.
Is the domain I search stored?
No. Our server queries the public RDAP server and returns the result. The domain is not logged or persisted.
Which TLDs are supported?
Any TLD listed in the IANA RDAP bootstrap file, which covers major gTLDs and many ccTLDs. If a TLD has no RDAP server, the lookup will report that.
Can I use this to see if a domain is available?
A 404 style response often means the name is not registered, but availability checks should use a registrar. This tool is for inspecting existing registrations.