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Kordu Tools

WHOIS Lookup

Look up domain registration details using the modern RDAP protocol.

How to use

  1. 1

    Enter a domain

    Type the domain you want to look up, such as example.com.

  2. 2

    Run the lookup

    Click the Lookup button or press Enter to query the RDAP registry.

  3. 3

    Review registration details

    See the registrar, key dates, name servers, status codes, and DNSSEC status at a glance.

  4. 4

    Inspect raw data

    Expand the raw RDAP response section to see the full JSON returned by the registry.

Frequently asked questions

What is RDAP?
RDAP (Registration Data Access Protocol) is the modern, IETF-standardised replacement for the legacy WHOIS protocol. It returns structured JSON data and supports HTTPS, making it more reliable and easier to parse.
Why might some fields show a dash?
Not all registries expose every field. Privacy protection services, thin registries, and certain TLDs may redact or omit registrant details, dates, or DNSSEC information.
Is this the same as traditional WHOIS?
It returns similar information but uses the RDAP protocol. Some legacy WHOIS fields (like registrant contact details) may not be available through RDAP due to privacy regulations such as GDPR.
Does this tool store my queries?
No. Queries are sent directly from your browser to the rdap.org bootstrap service, which redirects to the authoritative RDAP server for the TLD. Nothing is logged or stored by this tool.

Look up WHOIS-style domain registration information using RDAP (Registration

Data Access Protocol), the modern replacement for traditional WHOIS. Enter

any domain name and see the registrar, registration date, expiry date,

name servers, status codes, and DNSSEC status. The full RDAP JSON response

is available in a collapsible section for detailed inspection. RDAP is a

free, standardised protocol that returns structured JSON — no API key is

needed. All queries run from your browser.

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