You can't, and shouldn't. We already had domain registration "transparency" in the early/mid 2000s, when domain privacy was a rare and costly service. It was a

You can't, and shouldn't. We already had domain registration "transparency" in the early/mid 2000s, when domain privacy was a rare and costly service. It was awful. Anyone who registered a domain would immediately start receiving a bunch of junk mail (like, physical letters) about it, along with a bunch of email spam -- and any registrant with significant privacy concerns was basically out of luck. By 2010 or so, most registrars offered domain privacy as an add-on, or even for free, but the passage of GDPR sealed the deal -- public WHOIS is fundamentally incompatible with the GDPR. Most of the major registries (including, AFAIK, all gTLDs) have enforced contact privacy for all domains, and there is no way you're going to get bulk access to the real data, especially if your goal is to make it available to others.