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DNS Lookup Domain Troubleshooting Security Review

DNS Lookup and Troubleshooting API

Resolve complete DNS records from a domain or webpage URL

What can this API do?

Eight essential DNS record types

Query A, AAAA, MX, TXT, NS, CNAME, SRV, and SOA records without combining multiple lookup tools.

Domains and webpage URLs

Submit a domain or HTTP(S) URL and receive records for its normalized hostname.

Email and ownership checks

Review MX and TXT records during mail setup, sender verification, and domain ownership validation.

Launch and migration validation

Confirm address, nameserver, alias, and authority records before or after a domain change.

Monitoring and incident diagnosis

Store structured DNS snapshots for scheduled checks, change detection, and operational investigations.

Service and security reviews

Inspect discovery records and domain configuration for missing, stale, or unexpected values.

DNS Lookup and Troubleshooting API
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API Document

HTTP Protocol:HTTPS

HTTP Method:GET

HTTP Endpoint:https://api.gugudata.io/v1/websitetools/dns-lookup

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

DEMO Endpoint:https://api.gugudata.io/v1/websitetools/dns-lookup/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.
domainstringtruehttps://gugudata.io/docsDomain name or HTTP(S) URL to inspect. Paths, case, trailing dots, and internationalized domain names are normalized. IP addresses and other URL schemes are rejected.

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 returned DNS records across all record groups.
data.*array<object>Dynamic record groups for A, AAAA, MX, TXT, NS, CNAME, SRV, and SOA. Groups with no records are omitted; NXDOMAIN returns an empty data object.
data.*.domainstringNormalized owner name for the DNS record.
data.*.ttlstringTime to live reported for the DNS record.
data.*.classstringDNS class for the record, such as IN.
data.*.typestringRecord type matching its containing group.
data.*.valuestringComplete record value. MX, SRV, and SOA include all fields, and multipart TXT values are joined into one string.

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.

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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