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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
2804:8d68::
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
% IP Client: 159.89.91.126
 % Copyright (c) Nic.br - Use of this data is governed by the Use and
% Privacy Policy at https://registro.br/upp . Distribution,
% commercialization, reproduction, and use for advertising or similar
% purposes are expressly prohibited.
% 2026-08-14T05:49:17-03:00 - 159.89.91.126

inetnum:     2804:8d68::/32
aut-num:     AS273355
abuse-c:     AHDSI13
owner:       System Computadores LTDA
ownerid:     06.120.084/0001-83
responsible: Antonio Henrique Dias Silveira
country:     BR
owner-c:     AHDSI13
tech-c:      FHBWE
inetrev:     2804:8d68::/33
nserver:     ns1.wernertelekom.com.br [lame - not published]
nsstat:      20260814 UDN
nslastaa:    20250328
nserver:     ns2.wernertelekom.com.br [lame - not published]
nsstat:      20260814 UDN
nslastaa:    20250328
dsinetrev:   2804:8d68::/36
dsrecord:    32125 RSA-SHA-256 1CF27C40740B60A11B23ADC6AA1B7AEEBBDC3D245B82DEF825E8EAB8BC627D03
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:1000::/36
dsrecord:    11827 RSA-SHA-256 44466246614A079FA94F266FEEF058F0B9156F7D86703BC6EFBAF79A0E9CF771
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:2000::/36
dsrecord:    47401 RSA-SHA-256 676FC34276D11D9B1CD39F14553024E962FCE9AEE2B03AA840E72D75FA6EF575
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:3000::/36
dsrecord:    12364 RSA-SHA-256 D9DDF8E21CA95982BB84B24FAF0076D91D9B5247FDDD79E002B14522312FBD3F
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:4000::/36
dsrecord:    13054 RSA-SHA-256 62029E4E1BCA5FDC61EBA8ADB712B204F129C95A69145034470EC4E9E4E2F21F
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:5000::/36
dsrecord:    50251 RSA-SHA-256 C72FC4BF04FC4C2A052736399B83894F9E2DD2F4F448772964726FAB5062A35D
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:6000::/36
dsrecord:    28294 RSA-SHA-256 08D7F29D3D34570772414B9B6E2055B8AB019A85978040B7A1AF2448B23F4F1B
dsstatus:    20260814 NOKEY
dslastok:    20250920
dsinetrev:   2804:8d68:7000::/36
dsrecord:    16717 RSA-SHA-256 6337D06E2E154A560ABC18F2E686D1269F56926A3B1274F0661C103B53E4855F
dsstatus:    20260814 NOKEY
dslastok:    20250920
created:     20231005
changed:     20231005

nic-hdl-br:  AHDSI13
person:      antonio henrique dias silveira
e-mail:      [email protected]
country:     BR
created:     20230614
changed:     20230927

nic-hdl-br:  FHBWE
person:      Fernando Henrique Batista Werner
e-mail:      [email protected]
country:     BR
created:     20110731
changed:     20230522

% Security and mail abuse issues should also be addressed to cert.br,
% respectivelly to [email protected] and [email protected]
%
% whois.registro.br only accepts exact match queries for domains,
% registrants, contacts, tickets, providers, IPs, and ASNs.
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.