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WHOIS Lookup Tool

Check domain registration details, find the registrar and expiry date, review nameservers, EPP status codes, DNSSEC status, and raw WHOIS/RDAP data.

Examples google.com github.com openai.com
Domain Registered Active
2403:1000::
Registered with
Registered
Expires
Domain age
0 days to renew
Created
Updated
Expires
Registrar
Registrar
IANA ID
WHOIS server
Registrar URL
Abuse contact
Abuse phone
Key dates
Registered
Last updated
Expires
Domain age
Until expiry 0 days left
Nameservers
0 NS
Run a DNS lookup
Security
Registrar lock Off
DNSSEC unknown
Privacy protection On
Contacts
GDPR redacted
Registrant
Organization
State
Country
Email
Admin
Organization
State
Country
Email
Technical
Organization
State
Country
Email
Raw WHOIS/RDAP record
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '2403:1000::/32'

% Abuse contact for '2403:1000::/32' is '[email protected]'

inet6num:       2403:1000::/32
netname:        HKCSL-GPRS-IPV6-20071128
descr:          CSL Next G
country:        HK
org:            ORG-CL2-AP
admin-c:        IO35-AP
tech-c:         IP90-AP
abuse-c:        AH969-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AP-SYSENG
mnt-routes:     MAINT-AP-SYSENG
mnt-irt:        IRT-HKCSL-HK
last-modified:  2020-07-07T04:57:12Z
source:         APNIC

irt:            IRT-HKCSL-HK
address:        4/F, Lai Chi Kok Engineering II
address:        4 Yuet Lun Street,
address:        Lai Chi Kok
address:        Hong Kong
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IO35-AP
tech-c:         IP90-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2026-05-12
mnt-by:         MAINT-AP-SYSENG
last-modified:  2026-05-12T13:50:29Z
source:         APNIC

organisation:   ORG-CL2-AP
org-name:       CSL Limited
org-type:       LIR
country:        HK
address:        3rd Floor
address:        Lai Chi Kok Engineering Center II
address:        4 Yuet Lun Street
phone:          +852-2883-4324
fax-no:         +852-2962-5504
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:49Z
source:         APNIC

role:           ABUSE HKCSLHK
country:        ZZ
address:        4/F, Lai Chi Kok Engineering II
address:        4 Yuet Lun Street,
address:        Lai Chi Kok
address:        Hong Kong
phone:          +000000000
e-mail:         [email protected]
admin-c:        IO35-AP
tech-c:         IP90-AP
nic-hdl:        AH969-AP
remarks:        Generated from irt object IRT-HKCSL-HK
remarks:        [email protected] was validated on 2026-05-12
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2026-05-12T13:50:50Z
source:         APNIC

person:         IPBB Operation
address:        3/F, Lai Chi Kok Engineering Center II
                4 Yuet Lun Street
                Hong Kong
country:        HK
phone:          +852-23464280
e-mail:         [email protected]
nic-hdl:        IO35-AP
remarks:        Please send spam and abuse reports to [email protected]
remarks:        with providing detail information and times in HKT.
remarks:        The phone number is only for emergency contact
abuse-mailbox:  [email protected]
mnt-by:         MAINT-AP-SYSENG
last-modified:  2016-08-04T02:55:19Z
source:         APNIC

person:         IPBB Planning
address:        3/F, Lai Chi Kok Engineering Centre II, 4 Yuet Lun Street
country:        HK
phone:          +852-23464280
e-mail:         [email protected]
nic-hdl:        IP90-AP
abuse-mailbox:  [email protected]
mnt-by:         MAINT-AP-SYSENG
remarks:        Please send spam and abuse reports to [email protected]
remarks:        with providing detail information and times in HKT
remarks:        The phone number is only for emergency contact
last-modified:  2024-08-09T08:21:23Z
source:         APNIC

% Information related to '2403:1000::/32AS38819'

route6:         2403:1000::/32
origin:         AS38819
descr:          CSL Limited
                3rd Floor
                Lai Chi Kok Engineering Center II
                4 Yuet Lun Street
mnt-by:         MAINT-AP-SYSENG
last-modified:  2026-06-15T04:10:52Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)
Guide

How to read WHOIS and RDAP results

A WHOIS lookup shows public domain registration data. Use it to check domain registration details, confirm which registrar manages the name, find the domain's creation date and expiry date, review nameservers , and inspect the raw WHOIS/RDAP record when you need the original registry response.

RDAP lookup is the modern structured version of domain ownership lookup, while traditional WHOIS records are plain text and vary by TLD. This tool checks RDAP first and falls back to WHOIS when needed, so results can include registrar details, renewal dates, DNSSEC status, abuse contacts, and EPP status codes.

The status codes (EPP codes like clientTransferProhibited ) describe domain lifecycle and security states. Transfer locks help protect a domain against unauthorized transfer, edit, or deletion. Since GDPR and registry privacy policies, many personal contact fields are redacted, but organization, country, registrar abuse contact, and technical fields may still be visible.

Use cases

Common WHOIS checks

Use this domain WHOIS lookup before buying a domain, planning a migration, auditing domain security, or investigating a suspicious hostname. The registrar, expiration checker, transfer lock, nameservers, and raw record are often enough to spot renewal risk or ownership changes.

If the domain is registered, compare the WHOIS or RDAP result with DNS and SSL checks. Nameservers should match the expected DNS provider, DNSSEC should match your security plan, and the expiry date should leave enough time for renewal before service is at risk.

FAQ

Frequently asked questions

What is a WHOIS lookup?

A WHOIS lookup checks public domain registration data, including the registrar, creation date, expiry date, nameservers, status codes, DNSSEC status, and any contact fields the registry or registrar publishes.

What is the difference between WHOIS and RDAP?

WHOIS is the older text-based registration lookup protocol. RDAP is the newer structured format used by many registries. This tool tries RDAP first, then falls back to port 43 WHOIS when needed.

Can I find the domain registrar and expiry date?

Yes. When the registry publishes the data, the result shows the registrar, IANA registrar ID, creation date, last updated date, expiry date, domain age, and days left before renewal.

Why are domain owner details hidden?

Many registrars redact personal contact data because of privacy laws and registry policies. You may still see organization, country, registrar abuse contact, or other non-personal fields when they are public.

What does clientTransferProhibited mean?

clientTransferProhibited is an EPP status code that means the registrar is blocking transfer to another registrar. It is commonly used as a domain security lock against unauthorized transfer.

Why can WHOIS and RDAP results differ?

WHOIS and RDAP can come from different registry or registrar systems, and some fields may update at different times. RDAP is structured, while raw WHOIS records are text and can vary by TLD.