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SESK: Stuff Everyone Should Know · sesk.info/biz-rdap-replaces-whois

Which protocol was created to replace WHOIS for looking up domain registration data?

RDAP, the Registration Data Access Protocol.

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  1. DNS
  2. FTP
  3. RDAP ✔

Why: RDAP gives WHOIS-like domain registration data in standard formats, with better security and support for other languages. Since January 28, 2025, most generic domain registries and registrars no longer must offer WHOIS.

Huh, didn't know that: RDAP handles over 10 billion queries a month across its servers, according to ICANN.

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References

Answer: RDAP. RDAP gives WHOIS-like domain registration data in standard formats, with better security and support for other languages. Since January 28, 2025, most generic domain registries and registrars no longer must offer WHOIS.

  1. ICANN: Registration Data Access Protocol (RDAP) www.icann.org/rdap
    was created as the replacement for the WHOIS protocol.
    Checked 2026-10-11.

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