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=oppserv.org"Response
{
"domain": "oppserv.org",
"domain_id": "3ef3d2ca5020475891b9503beaada28f-LROR",
"status": "client transfer prohibited",
"create_date": "1999-04-19T04:00:00.423Z",
"update_date": "2025-07-09T06:25:05.01Z",
"expire_date": "2033-04-19T04:00:00Z",
"domain_age": 9587,
"whois_server": "",
"registrar": {
"iana_id": "48",
"name": "eNom, LLC",
"url": ""
},
"registrant": {
"name": "",
"organization": "",
"street_address": "",
"city": "",
"region": "",
"zip_code": "",
"country": "",
"phone": "",
"fax": "",
"email": ""
},
"admin": {
"name": "",
"organization": "",
"street_address": "",
"city": "",
"region": "",
"zip_code": "",
"country": "",
"phone": "",
"fax": "",
"email": ""
},
"tech": {
"name": "",
"organization": "",
"street_address": "",
"city": "",
"region": "",
"zip_code": "",
"country": "",
"phone": "",
"fax": "",
"email": ""
},
"billing": {
"name": "",
"organization": "",
"street_address": "",
"city": "",
"region": "",
"zip_code": "",
"country": "",
"phone": "",
"fax": "",
"email": ""
},
"nameservers": [
"jean.ns.cloudflare.com",
"marek.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.
Discover Domain Information Instantly With WHOIS Domain REST API
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IP2WHOIS Domain Name Lookup - Check WHOIS Information
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