RDAP Domain Lookup
Look up structured registration data for domains using the Registration Data Access Protocol
The domain 4u.com.br is registered. You can still try to buy it here.
Domain Contacts
Registrant Contact
- Name
- 4U NETWORK
- Handle
- 07253233000145
- Kind
- org
- Address
- BR
Technical Contact
- Name
- 4u Network - Administração de Domínios
- Handle
- UNADO
- Kind
- individual
- nic [at] 4u [dot] com [dot] br
- Address
- BR
Basic Information
- Handle
- 4u.com.br
- Status
- active
- Resource URL
- https://rdap.registro.br/domain/4u.com.br
Important Dates
- Registration
- Last changed
- Expiration
RDAP data last fetched
Nameservers
| Hostname | IP Address |
|---|---|
| ns1.4u.com.br | 82.112.245.81 |
| ns2.4u.com.br | 131.255.108.29 |
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Raw RDAP Data
Raw RDAP responses from registry and registrar servers.
{
"links": [
{
"rel": "self",
"href": "https://rdap.registro.br/domain/4u.com.br",
"type": "application/rdap+json",
"value": "https://rdap.registro.br/domain/4u.com.br"
},
{
"rel": "archives",
"href": "https://rdap.registro.br/domain/4u.com.br?ticket=121735",
"type": "application/rdap+json",
"value": "https://rdap.registro.br/domain/4u.com.br"
}
],
"events": [
{
"eventDate": "1998-10-16T03:27:22Z",
"eventAction": "registration"
},
{
"eventDate": "2025-11-30T00:06:48Z",
"eventAction": "last changed"
},
{
"eventDate": "2026-10-16T03:27:22Z",
"eventAction": "expiration"
}
],
"handle": "4u.com.br",
"status": [
"active"
],
"ldhName": "4u.com.br",
"notices": [
{
"links": [
{
"rel": "alternate",
"href": "https://registro.br/upp",
"type": "text/html",
"value": "https://rdap.registro.br/domain/4u.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.",
"2026-10-21T09:47:00-03:00 - 131.108.19.121"
]
}
],
"entities": [
{
"roles": [
"registrant"
],
"handle": "07253233000145",
"entities": [
{
"roles": [
"administrative"
],
"handle": "UNADO",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"individual"
],
[
"fn",
{},
"text",
"4u Network - Administração de Domínios"
],
[
"email",
{},
"text",
"nic@4u.com.br"
],
[
"lang",
{},
"language-tag",
"pt"
],
[
"adr",
{},
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"objectClassName": "entity"
}
],
"publicIds": [
{
"type": "cnpj",
"identifier": "07.253.233/0001-45"
}
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"org"
],
[
"fn",
{},
"text",
"4U NETWORK"
],
[
"adr",
{},
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"objectClassName": "entity"
},
{
"roles": [
"technical"
],
"handle": "UNADO",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"kind",
{},
"text",
"individual"
],
[
"fn",
{},
"text",
"4u Network - Administração de Domínios"
],
[
"email",
{},
"text",
"nic@4u.com.br"
],
[
"lang",
{},
"language-tag",
"pt"
],
[
"adr",
{},
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"objectClassName": "entity"
}
],
"secureDNS": {
"delegationSigned": false
},
"nameservers": [
{
"ldhName": "ns1.4u.com.br",
"objectClassName": "nameserver"
},
{
"ldhName": "ns2.4u.com.br",
"objectClassName": "nameserver"
}
],
"queried_url": "https://rdap.registro.br/domain/4u.com.br",
"objectClassName": "domain",
"rdapConformance": [
"rdap_level_0",
"nicbr_level_0"
]
}Get this RDAP record from the API
Fetch the parsed record for 4u.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/4u.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.