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=si.edu"
Response
{
    "domain": "si.edu",
    "domain_id": "",
    "status": "registered",
    "create_date": "1992-06-19T00:00:00+00:00",
    "update_date": "2024-07-10T00:00:00+00:00",
    "expire_date": "2027-07-31T00:00:00+00:00",
    "domain_age": 12075,
    "whois_server": "",
    "registrar": {
        "iana_id": "",
        "name": "",
        "url": ""
    },
    "registrant": {
        "name": "",
        "organization": "Smithsonian Institution",
        "street_address": "380 Herndon Parkway",
        "city": "Herndon",
        "region": "VA",
        "zip_code": "20170",
        "country": "USA",
        "phone": "",
        "fax": "",
        "email": ""
    },
    "admin": {
        "name": "Brian Alpert Smithsonian Institution",
        "organization": "",
        "street_address": "380 Herndon Parkway, MRC 1010",
        "city": "Herndon",
        "region": "VA",
        "zip_code": "20170",
        "country": "USA",
        "phone": "+1.2026333955",
        "fax": "",
        "email": "alpertb@si.edu"
    },
    "tech": {
        "name": "Joseph Johnston Smithsonian Institution",
        "organization": "",
        "street_address": "380 Herndon Parkway",
        "city": "Herndon",
        "region": "VA",
        "zip_code": "20170",
        "country": "USA",
        "phone": "+1.2026332715",
        "fax": "",
        "email": "johnstonj@si.edu"
    },
    "billing": {
        "name": "",
        "organization": "",
        "street_address": "",
        "city": "",
        "region": "",
        "zip_code": "",
        "country": "",
        "phone": "",
        "fax": "",
        "email": ""
    },
    "nameservers": []
}

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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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