RDAP API for Domain Lookups

Access RDAP (Registration Data Access Protocol) data through a simple API. Get structured, machine-readable domain information from authoritative sources.

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curl "https://domscan.net/v1/status?name=example&tlds=com"

Example Response

{
  "name": "example",
  "results": [{
    "domain": "example.com",
    "available": false,
    "source": "rdap",
    "registry_status": ["client delete prohibited", "client transfer prohibited"],
    "rdap_events": [
      { "eventAction": "registration", "eventDate": "1995-08-14T04:00:00Z" },
      { "eventAction": "expiration", "eventDate": "2025-08-13T04:00:00Z" }
    ],
    "latency_ms": 142
  }]
}

Key Features

Native RDAP Support

Direct queries to RDAP servers, not scraped WHOIS data.

Structured JSON

Machine-readable responses following RDAP standards.

Registry Status Codes

Get EPP status codes like clientTransferProhibited.

Event Data

Registration, expiration, and last update timestamps.

IANA Bootstrap

Automatic routing to correct RDAP servers via IANA bootstrap.

Availability Detection

Accurately determine if domains are available for registration.

Smart Caching

Intelligent cache with configurable TTLs for optimal performance.

Error Handling

Graceful fallbacks when RDAP servers are temporarily unavailable.

Frequently Asked Questions

What is RDAP?

RDAP (Registration Data Access Protocol) is the modern replacement for WHOIS. It provides structured JSON responses, better internationalization support, and is the IETF standard for domain registration data.

How is RDAP different from WHOIS?

RDAP returns structured JSON instead of free-form text, supports HTTPS for security, handles international characters properly, and provides standardized response formats across all registries.

Do you cache RDAP responses?

Yes, we implement intelligent caching to provide fast responses and reduce load on RDAP servers. Use skip_cache=1 to force a fresh lookup when needed.

Which RDAP servers do you query?

We use the IANA RDAP Bootstrap to automatically route queries to the correct authoritative RDAP server for each TLD.

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View Full API Documentation