Description
Retrieve domain registration data via RDAP (modern) with WHOIS fallback. Get registrar, creation date, expiration date, nameservers, registration status, and contact information (where available).
Uses the modern RDAP protocol first for structured data, falling back to traditional WHOIS parsing when RDAP isn't available for a TLD.
Use Cases
- Check domain ownership and registration details
- Verify domain expiration dates for renewal monitoring
- Investigate suspicious domains for security analysis
- Competitive intelligence — who owns competitor domains
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
domain |
string | Yes | Domain name to look up |
format |
string | No | Response format: json or markdown |