RDAP Domain Lookup
Look up structured registration data for domains using the Registration Data Access Protocol
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Domain Contacts
Registrant Contact
- Name
- COMPANHIA SIDERURGICA NACIONAL
- Handle
- 33042730007206
- Kind
- org
Technical Contact
- Name
- Roger Peres
- Handle
- ROPER384
- Kind
- individual
Basic Information
- Handle
- csn.com.br
- Status
- active
- Resource URL
- https://rdap.registro.br/domain/csn.com.br
Important Dates
- Registration
- Last changed
- Expiration
RDAP data last fetched
Nameservers
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Raw RDAP Data
Raw RDAP responses from registry and registrar servers.
{
"links": [
{
"rel": "self",
"href": "https://rdap.registro.br/domain/csn.com.br",
"type": "application/rdap+json",
"value": "https://rdap.registro.br/domain/csn.com.br"
},
{
"rel": "archives",
"href": "https://rdap.registro.br/domain/csn.com.br?ticket=4892",
"type": "application/rdap+json",
"value": "https://rdap.registro.br/domain/csn.com.br"
}
],
"events": [
{
"eventDate": "1995-12-20T12:00:00Z",
"eventAction": "registration"
},
{
"eventDate": "2025-09-24T14:39:46Z",
"eventAction": "last changed"
},
{
"eventDate": "2026-12-20T12:00:00Z",
"eventAction": "expiration"
}
],
"handle": "csn.com.br",
"status": [
"active"
],
"ldhName": "csn.com.br",
"notices": [
{
"links": [
{
"rel": "alternate",
"href": "https://registro.br/upp",
"type": "text/html",
"value": "https://rdap.registro.br/domain/csn.com.br"
}
],
"title": "Use and Privacy Policy",
"description": [
"Copyright (c) Nic.br - Use of this data is governed by the Use and Privacy Policy. Distribution, commercialization, reproduction, and use for advertising or similar purposes are expressly prohibited.",
"2026-10-20T18:41:47-03:00 - 165.231.97.123"
]
}
],
"entities": [
{
"roles": [
"registrant"
],
"handle": "33042730007206",
"entities": [
{
"roles": [
"administrative"
],
"handle": "ROPER384",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"individual"
],
[
"fn",
{},
"text",
"Roger Peres"
],
[
"lang",
{},
"language-tag",
"pt"
]
]
],
"objectClassName": "entity"
}
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"org"
],
[
"fn",
{},
"text",
"COMPANHIA SIDERURGICA NACIONAL"
]
]
],
"objectClassName": "entity"
},
{
"roles": [
"technical"
],
"handle": "ROPER384",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"individual"
],
[
"fn",
{},
"text",
"Roger Peres"
],
[
"lang",
{},
"language-tag",
"pt"
]
]
],
"objectClassName": "entity"
}
],
"secureDNS": {
"delegationSigned": false
},
"nameservers": [
{
"ldhName": "ns01.tivit.net",
"objectClassName": "nameserver"
},
{
"ldhName": "ns02.tivit.net",
"objectClassName": "nameserver"
},
{
"ldhName": "ns03.tivit.net",
"objectClassName": "nameserver"
},
{
"ldhName": "ns04.tivit.net",
"objectClassName": "nameserver"
}
],
"queried_url": "https://rdap.registro.br/domain/csn.com.br",
"objectClassName": "domain",
"rdapConformance": [
"rdap_level_0",
"nicbr_level_0"
]
}Get this RDAP record from the API
Fetch the parsed record for csn.com.br as JSON. 500 free lookups a month, no credit card. Paid plans from $29.00/month.
curl https://api.who.is/v1/rdap/csn.com.br \
-H "Authorization: Bearer wis_live_..."About RDAP
The Registration Data Access Protocol (RDAP) is a modern protocol designed to replace the traditional WHOIS protocol. It provides a standardized way to access domain registration data, offering more structured and secure data retrieval.
RDAP supports internationalization, secure access, and standardized responses, making it a more robust solution for accessing domain registration information.