My Interisle colleagues, together with Greg Aaron, have completed an in-depth analysis of the effects of ICANN policy for WHOIS, a public lookup service that has until recently made it possible to identify who registered and controls a domain name. The European Union’s General Data Protection Regulation (GDPR), adopted in May 2018, restricted the publication of personally identifiable data in WHOIS. In response, the Internet Corporation for Assigned Names and Numbers (ICANN) established a new policy, allowing registrars and registry operators to redact (withhold) personally identifiable data from publication in WHOIS. The implementation of this policy has been widely criticized,...