Advanced API docs | Documentation | Registrant Alert API | WhoisXML API

Making requests

POST https://registrant-alert.whoisxmlapi.com/api/v2
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Note that the search results are limited to 10,000 records. If you'd like to get more relevant results, try optimizing your search query or using advanced search.

POST request body sample

{
    "apiKey": "API_KEY",
    "sinceDate": "2019-04-20",
    "mode": "purchase",
    "advancedSearchTerms": [{
        "field": "RegistrantContact.Organization",
        "term": "Airbnb, Inc."
    },
    {
        "field": "RegistrantContact.Country",
        "term": "UNITED STATES"
    }]
}

Basic search requires less configuration and produces broader results. Advanced search allows searching through specific WHOIS fields.

You can provide up to four search terms within one request. With several search terms, the output includes domains matching all of them.

The search term includes an exact field of the domain's WHOIS record, one of the following:

Registrant contact fields

RegistrantContact.City,
RegistrantContact.Country,
RegistrantContact.Email,
RegistrantContact.Fax,
RegistrantContact.FaxExtension,
RegistrantContact.Name,
RegistrantContact.Organization,
RegistrantContact.PostalCode,
RegistrantContact.State,
RegistrantContact.StreetAddress,
RegistrantContact.Telephone,
RegistrantContact.TelephoneExtension

Admin contact fields

AdminContact.City,
AdminContact.Country,
AdminContact.Email,
AdminContact.Fax,
AdminContact.FaxExtension,
AdminContact.Name,
AdminContact.Organization,
AdminContact.PostalCode,
AdminContact.State,
AdminContact.StreetAddress,
AdminContact.Telephone,
AdminContact.TelephoneExtension

Billing contact fields

BillingContact.City,
BillingContact.Country,
BillingContact.Email,
BillingContact.Fax,
BillingContact.FaxExtension,
BillingContact.Name,
BillingContact.Organization,
BillingContact.PostalCode,
BillingContact.State,
BillingContact.StreetAddress,
BillingContact.Telephone,
BillingContact.TelephoneExtension

Technical contact fields

TechContact.City,
TechContact.Country,
TechContact.Email,
TechContact.Fax,
TechContact.FaxExtension,
TechContact.Name,
TechContact.Organization,
TechContact.PostalCode,
TechContact.State,
TechContact.StreetAddress,
TechContact.Telephone,
TechContact.TelephoneExtension

Headers

X-Authentication-Token

You can use this header or apiKey parameter for API calls.

Get your personal API KEY on My products page.

Input parameters for advanced search

For advanced search, instead of the basicSearchTerms block, use the advancedSearchTerms block of the following format:

advancedSearchTerms.field

Required. Which WHOIS field to search in.

advancedSearchTerms.term

Required. Search string. Case insensitive.

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