Getting WHOIS records | Documentation | Bulk WHOIS API | WhoisXML API
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WHOIS / WHOIS History

Provide current and historical ownership information on domains / IPs. Identify all connections between domains, registrants, registrars, and DNS servers.

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DNS / DNS History

Look into all current and historical DNS / IP connections between domains and A, MX, NS, and other records. Monitor suspicious changes to DNS records.

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IP Geolocation / IP Netblocks

Get detailed context on an IP address, including its user’s geolocation, time zone, connected domains, connection type, IP range, ASN, and other network ownership details.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Access our web-based solution to dig into and monitor all domain events of interest.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Get access to a web-based enterprise-grade solution to search and monitor domain registrations and ownership details for branded terms, fuzzy matches, registrants of interest, and more.

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WhoisXML API Predictive Threat Intelligence
Predictive Threat Intelligence

Detect and block access to and from dangerous domain names before malicious actors can weaponize them. Contact us today for more information.

WhoisXML API Internet Infrastructure
Internet Infrastructure

Unlock integrated intelligence on Internet properties and their ownership, infrastructure, and other attributes.

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Enterprise API Packages

Our complete set of domain, IP, and DNS intelligence available via API calls as an annual subscription with predictable pricing.

Security Intelligence (SI) Suite
Security Intelligence (SI) Suite

Offers complete access to WHOIS, IP, DNS, and subdomain data for product enrichment, threat hunting and more.

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API usage rules Making requests Send domains Getting WHOIS records Result CSV download Get a list of your requests Output format
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Making requests (old)

Getting WHOIS records

POST https://www.whoisxmlapi.com/BulkWhoisLookup/bulkServices/getRecords

Since processing all the input domains may take some time, you'll have to repeatedly query this resource until the returned recordsLeft field value is 0.

Set the maxRecords input parameter to 1 if you don't need to monitor each record's progress.

Otherwise, each element of the whoisRecords array contains the whoisRecordStatus field:

  • 0 - processed;
  • 1/2 - incomplete / missing data;
  • 3 - processing.

The domainStatus field contains the processing status of the record:

  • N - unavailable;
  • I - available.

POST request body sample

{
    "apiKey": "API_KEY",
    "requestId": "ece0f949-c22a-4ecc-...",
    "maxRecords": 1,
    "startIndex": 1,
    "outputFormat": "JSON"
}

Input parameters

apiKey

Required. Get your personal API key on the My products page.
requestId

Required. String.

Bulk request identifier.
maxRecords

Required. Number.

Maximum amount of WHOIS records to be returned.
startIndex

Optional. Number.

The first WHOIS record to be returned by the server.

Acceptable values: 1+

Default: 1
outputFormat

Optional. Response output format.

Acceptable values: JSON | XML

Default: XML