WHOIS is a protocol for querying the ownership and registration details of a domain name. It returns information like registrar, registration date, and expiration date.

RDAP (Registration Data Access Protocol) is the modern replacement for WHOIS. It returns structured JSON instead of plain text, and is the official standard endorsed by ICANN.

Why do some domains return no data?

Some TLDs (especially country codes or newer extensions) do not fully support RDAP yet. In that case the registry returns an error and there is nothing to display.

Is the data real-time?

Yes. Each lookup queries the authoritative RDAP server directly. There is no caching layer.

sigxlabs/Network Tools

WHOIS Lookup

Look up WHOIS and RDAP information for any domain. See registrar, registration, and expiry dates.

whois lookup

domain whois

whois search

whois domain lookup

Domain name

How to use

1
Enter a domain
Type any domain name like example.com. The protocol and www prefix are removed automatically.
2
Click Look up
We query the official RDAP registry for the domain.
3
Read the report
See the registrar, registration date, expiration date, status, and nameservers.

FAQ

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