IP2WHOIS is a free WHOIS Lookup (Domain lookup) tool that helps user to check WHOIS information for a particular domain, such as domain assigned owner contact information, registrar information, registrant information, location and much more.
Domain WHOIS Checker
Get
$ curl "https://api.ip2whois.com/v2?key={YOUR_API_KEY}&domain=u44.us"Response
{
"domain": "u44.us",
"domain_id": "D2081EF1CC45B4446B142184EC59B39FA-GDREG",
"status": "clientTransferProhibited https:\/\/icann.org\/epp#clientTransferProhibited",
"create_date": "2025-06-07T18:29:58Z",
"update_date": "2025-06-15T10:45:59Z",
"expire_date": "2026-06-07T18:29:58Z",
"domain_age": 33,
"whois_server": "whois.spaceship.com",
"registrar": {
"iana_id": "3862",
"name": "Spaceship, Inc.",
"url": "https:\/\/www.spaceship.com\/"
},
"registrant": {
"name": "Doreen Schneider",
"organization": "",
"street_address": "Kurfurstenstrabe 25",
"city": "Adelberg",
"region": "Baden-Wuerttemberg",
"zip_code": "73099",
"country": "DE",
"phone": "+49.07166897756",
"fax": "",
"email": "tedtecom@gmail.com"
},
"admin": {
"name": "Doreen Schneider",
"organization": "",
"street_address": "Kurfurstenstrabe 25",
"city": "Adelberg",
"region": "Baden-Wuerttemberg",
"zip_code": "73099",
"country": "DE",
"phone": "+49.07166897756",
"fax": "",
"email": "tedtecom@gmail.com"
},
"tech": {
"name": "Doreen Schneider",
"organization": "",
"street_address": "Kurfurstenstrabe 25",
"city": "Adelberg",
"region": "Baden-Wuerttemberg",
"zip_code": "73099",
"country": "DE",
"phone": "+49.07166897756",
"fax": "",
"email": "tedtecom@gmail.com"
},
"billing": {
"name": "",
"organization": "",
"street_address": "",
"city": "",
"region": "",
"zip_code": "",
"country": "",
"phone": "",
"fax": "",
"email": ""
},
"nameservers": [
"olga.ns.cloudflare.com",
"miguel.ns.cloudflare.com"
]
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Domain WHOIS API
IP2WHOIS provide a free Domain WHOIS API allowing user to check detailed WHOIS information for any domain name. Please visit the API documentation page for more details.
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IP2WHOIS Domain Name Lookup - Check WHOIS Information
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