Victor, John, and others, I'm not sure what is being reported here so, more out of curiosity than anything else, if "example" were a TLD name and the domain had the following structure: foo.example. bar.example. alice.foo.example. bob.foo.example. charles.foo.example. would that be counted as two "registered delegations" or as five (or perhaps four if the only records directly subsidiary to foo.example. were delegation records)? The distinction is important, not just for understanding what the reported numbers mean but because, if we are concerned about identifiers for individuals, there may be no particular reason to tie them to second (or even third or fourth) level names. john --On Tuesday, April 1, 2025 13:01 +1100 Viktor Dukhovni <ietf-dane@xxxxxxxxxxxx> wrote: > On Mon, Mar 31, 2025 at 04:37:36PM -0400, John Levine wrote: > >> There's about 200 million registered domain names ... > > FWIW, I count 363 million registered delegations, in just the > DNSSEC-signed TLDs: > > https://stats.dnssec-tools.org/#/?top=tlds&tld_tab=3 > > Though, admittedly the not counted unsigned ccTLDs have a > comparatively small registration count: > > ae al ao aq as ba bb bf bi bo bs cd cf cg ck cm cu cv cw dj do > eg et fk ga gb ge gf gh gm gp gq gt gu hm im iq jm jo kh km kn > kp mh mk ml mo mp mq mt mv mw mz ne ng ni np nr om pa pf pg pk > pn ps qa sd sl sm so st sv sy sz tc td tg tj tk to va vg vi > xn--d1alf xn--fzc2c9e2c xn--j1amh xn--lgbbat1ad8j xn--mgb9awbf > xn--mgba3a4f16a xn--mgbaam7a8h xn--mgbc0a9azcg xn--mgbpl2fh > xn--mgbtx2b xn--mix891f xn--node xn--ogbpf8fl xn--wgbl6a > xn--xkc2al3hye2a xn--ygbi2ammx ye zw > > So perhaps just O(1 million) or so more. Which is consistent with: > > https://www.dnib.com/dashboards/global-domain-name-base-trends > > reporting 364.3 million. The undercount is quite concentrated in > just a few ccTLDs, the ".ng" ccTLD alone is reportedly ~233k > domains, that's perhaps the largest. > > Caveat, DNIB does not seem to have a count of ".tk" domains, not > sure what the status of that is post Freenom exit, IIRC .tk used to > have north of 20M domains. > > While the dominant gTLDs (.com, .org, .net) and "first world" ccTLDs > have seen a small net decline in registrations lately, the overall > number is mostly steady to growing slowly.