RDAP Domain Lookup

Look up domain registration data using RDAP (Registration Data Access Protocol). RDAP is the modern replacement for WHOIS, providing standardized access to domain information.

Domain Lookup

Supports all TLDs with RDAP endpoints via IANA bootstrap registry

About RDAP

RDAP (Registration Data Access Protocol) is the successor to WHOIS, providing standardized access to domain registration data in a structured JSON format.

Key advantages over WHOIS:

  • Standardized data format (JSON)
  • Internationalized domain name support
  • Secure access via HTTPS
  • RESTful API design
  • Built-in support for pagination

This tool uses the IANA RDAP bootstrap registry to find the appropriate RDAP server for any supported TLD.