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Domain Monitoring WHOIS Lookup Security Review

Domain WHOIS Monitoring API

Check domain registration, registrar, and expiry information

What can this API do?

Domain registration lookup

Look up WHOIS registration details for a domain and use them in monitoring, support, or ownership review workflows.

Registrar and nameserver fields

Return registrar, status, nameserver, creation, and expiry fields when the upstream data source provides them.

Domain expiry monitoring

Use expiry and registration dates to detect renewal risk for owned domains, customer domains, or watched assets.

Security and operations review

Support incident review, onboarding checks, domain portfolio audits, and suspicious-domain investigation workflows.

Structured output for dashboards

Use normalized WHOIS fields in admin panels, asset inventories, compliance reports, and scheduled monitoring jobs.

Standalone WHOIS interface

Buy this API independently when your workflow needs registration data rather than DNS, SSL, or geolocation checks.

Domain WHOIS Monitoring API
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API Document

HTTP Protocol:HTTPS

HTTP Method:GET

HTTP Endpoint:https://api.gugudata.io/v1/websitetools/whois

Response Type:application/json; charset=utf-8

DEMO Endpoint:https://api.gugudata.io/v1/websitetools/whois/demo

Live Demo:Try Interactive Demo

Full API Docs:developers.gugudata.io

API Request Parameters

NameTypeIs RequiredDefault ValueRemark
appkeystringtrueYOUR_APPKEYApplication key used for request authentication. Supply the value as a query parameter, form field, or multipart field according to the request content type.
domainstringtrueDomain name or HTTPS origin to inspect.

API Response Parameters

NameTypeRemark
dataStatus.requestParameterstringNormalized request parameters echoed by the service. Sensitive credentials are omitted when available.
dataStatus.statusCodeintegerApplication-level status code returned by the current v1 contract.
dataStatus.statusstringApplication-level status enum returned by the current v1 contract.
dataStatus.statusDescriptionstringApplication-level status message returned by the current v1 contract.
dataStatus.responseDateTimestringResponse timestamp returned by the current service contract.
dataStatus.dataTotalCountintegerTotal number of records that match the request.
data.domain_namearray<string>Domain name(s) found in WHOIS record
data.registrarstringDomain registrar information
data.creation_datearray<string>Domain creation date(s)
data.expiration_datearray<string>Domain expiration date(s)
data.updated_datearray<string>Domain last update date(s)
data.name_serversarray<string>Domain nameservers
data.statusarray<string>Domain status information
data.orgstringOrganization name
data.countrystringCountry code
data.emailsarray<string>Contact email addresses
data.dnssecstringDNSSEC status

API Response Status Codes

Status CodeExplanation of Status CodeRemarks
200Request processed successfully.Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`.
400Invalid request parameters or request format.Check required fields, data types, and request body format.
401Missing or unknown application key.Provide a valid `appkey` with the request.
403The application key is recognized but access is not allowed.The key may be expired, inactive, or not permitted for the requested API.
429Request rate or trial usage limit exceeded.Reduce concurrency or retry after the limit window resets.
500Internal service error.Retry later or contact support if the error persists.
503Upstream service unavailable.Retry later; the requested upstream dependency is temporarily unavailable.

Remote MCP

AI client access

Use this API through GuGuData Remote MCP

Connect your AI client once, authorize in the browser, and the client can use the GuGuData API tools available to your account. You do not need to paste an appkey into the MCP client.

Endpoint https://mcp.gugudata.io/mcp
Open MCP Guide
Generic MCP configuration
{
  "mcpServers": {
    "gugudata": {
      "url": "https://mcp.gugudata.io/mcp",
      "transportType": "streamable-http"
    }
  }
}

Code Snippets

Run in Apifox Run in Postman Open LLM Page

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