WHOIS Lookup Guide
Show registrar, registration and expiry dates, status and nameservers for a domain.
DNS records do not tell you when a domain registration expires or which registrar manages it. WHOIS Lookup reads registration dates, status codes and nameservers from RDAP records. It reads the registry’s own RDAP service, discovered from the IANA bootstrap directory, so there is no third-party proxy in the middle. When a registry publishes no RDAP service at all, the tool says so instead of guessing.
Look up a domain
Type a domain such as example.com into Domain and click Look up. The result lists the Registrar, the Registered, Last changed and Expires dates, the Nameservers, the Status codes and whether DNSSEC is signed, and the Source line names who answered. Copy as JSON copies the structured record for a ticket.
The request goes to the registry’s RDAP service, discovered through the IANA bootstrap directory, with rdap.org as a fallback; it does not pass through ilham.dev. Many private registrations are redacted under privacy law, and the page notes when that has happened. A typo usually comes back as a “does not look like a domain name” error rather than a result.
Where your input goes
Some actions send a request to RDAP providers. Check what you are sending before using real data.
Related guide
For more background, read Network Debugging Notes.
Questions you might have
- Why do some domains return nothing?
- A few registries still publish no RDAP endpoint. Without one there is no machine-readable record for the tool to fetch, so it reports that instead of showing an empty panel.
- Why is the registrant hidden?
- Since GDPR, most registries redact personal details on private registrations. The tool tells you when the response has been redacted rather than showing blanks.
- What is the difference between RDAP and WHOIS?
- RDAP is the structured HTTPS replacement for the old port-43 WHOIS protocol. It returns JSON instead of free text, so the fields can be labelled reliably rather than pattern-matched.