Note: these statistics have been re-checked against HE's Global IPv6 Deployment Progress Report and are current as of 2016-10-24. (Originally posted on 2010-10-27.) -- Spurred by a comment from Franck Martin on Hurricane Electric's Facebook page [1], I recalled that someone had in fact done the legwork on which TLDs haven't made themselves IPv6-ready yet. A quick Google ("tld ipv6") led me back to Martijn's IPv6 Blog [2] -- unfortunately the post I recalled was 14 months old. Fortunately, Martijn was kind enough to outline his methodology and link his source material [3], so updating his data set was no trouble at all. Thanks, Martijn! Top Level Domains (TLDs): 1503 TLDs without (working) IPv6 nameservers: 32 Percentage of TLDs without (working) IPv6 nameservers: 2.13% ai ax bb bd bh ck dj fk gf hm kp mh mil mp mq ni pf pk sl sr st to uz vu ws xn--l1acc xn--lgbbat1ad8j xn--mgba3a4f16a xn--mgbc0a9azcg xn--wgbh1c xn--ygbi2ammx zw TLDs with nameservers without IPv6 glue in the root zone: 34 Percentage of TLDs that do not have nameservers with IPv6 glue in the root zone: 2.26% ai ax bb bd bf bh ck dj fk gf hm kp mh mil mp mq mv ni pf pk sl sr st to uz vu ws xn--l1acc xn--lgbbat1ad8j xn--mgba3a4f16a xn--wgbh1c xn--ygbi2ammx ye zw Thanks to Mr. Martin for inspiring me to regenerate the list. -- References: 1. http://www.facebook.com/photo.php?fbid=447358231241&set=a.395837121241.176185.287045761241 2. http://ipv6blog.net/top-level-domains-that-still-do-not-support-ipv6/ 3. http://data.iana.org/TLD/tlds-alpha-by-domain.txt 4. http://bgp.he.net/ipv6-progress-report.cgi -- Changelog: http://jima.us/201610/ipv6-tld-hall-of-shame.txt 2016-10-24: More automation refinements. HE's metrics are getting a bit separated from mine, which would appear to be because either they don't check that an IPv6 nameserver is actually reachable and responding, or they have a path to it that I don't. I'm tentatively assuming the former, and am rewording my text accordingly. The completionist in me wonders if I should be checking the glue records for usable IPv6 servers. We'll see. Added to list 1: .bd, .mh, .ni, .to, .xn--lgbbat1ad8j, .xn--mgba3a4f16a, .xn--mgbc0a9azcg, & .xn--wgbh1c Removed from list 1: .tr Added to list 2: .to, Removed from list 2: .tr Surprisingly enough, there was no count change on list 2, despite the addition of 222 top-level domains. Apparently all 222 new TLDs have AAAA glue -- perhaps some kind of new requirement. Hurricane Electric's statistics report the following TLDs have AAAA nameservers, but they don't actually respond to queries (for me, anyway): .bd, .mh, .xn--lgbbat1ad8j, & .xn--mgbc0a9azcg http://jima.us/201604/ipv6-tld-hall-of-shame.txt 2016-04-12: I've automated large portions of the process, although there are some outliers that keep messing with the workflow (like .arpa, which shows up as a false positive for v6 glue on account of it being hosted on the root servers). Hopefully I'll be able to kick these off on a more regular basis. I've also changed my process for these last two runs in that I use http://data.iana.org/TLD/tlds-alpha-by-domain.txt as my source material, and manually check NS/AAAA records. It's more work, but as of today's metrics, the HE report[4] is missing 3 TLDs that do have AAAA nameservers (albeit not glue). Added/updated URLs for old versions. Removed from list 1: .bd, .ni, .xn--lgbbat1ad8j, .xn--mgba3a4f16a, .xn--wgbh1c, & .ye Added to list 1: .tr Added to list 2: .tr http://jima.us/201510/ipv6-tld-hall-of-shame.txt 2015-10-22: It's been a while. Oops. ICANN's opening up of the TLD namespace had a profound effect on these statistics -- the number of legal TLDs increased by 769 (from 312 to 1081) between these updates. Surprisingly, the number of non-v6-enabled TLDs only went up by 2-3. I'm not sure if AAAA nameservers/glue were a mandate of the new TLDs or what. Removed from list 1: .bo, .cc, .cx, .fo, .gm, .iq, .jobs, .ky, .mh, .name, .pro, .pw, .td, .tg, .tl, .tv, & .vi Added to list 1 (new domains): .xn--l1acc, .xn--mgba3a4f16a, & .zw Removed from list 2: .aw, .bj, .bn, .bo, .bs, .bv, .cc, .cm, .coop, .cx, .fo, .gm, .iq, .jobs, .ky, .name, .pro, .pw, .sj, .sv, .td, .tg, .tl, .tv, & .vi Added to list 2 (new domains): .xn--l1acc & .xn--mgba3a4f16a http://jima.us/201203/ipv6-tld-hall-of-shame.txt 2012-03-01: Last month's numbers were off -- parsing error -- so here's the corrected entry. Removed from list 1: .co, .dm, .gd, .gov, .nu, .qa, .tk, & .xn--wgbl6a . Added to list 1: .vi & .xn--lgbbat1ad8j ! For shame. Removed from list 2: .ba, .co, .dm, .er, .gd, .gov, .gp, .gu, .ir, .mg, .mm, .mu, .nc, .ne, .nu, .pg, .pr, .qa, .sd, .sm, .sy, .tc, .tk, .to, .tr, .tt, .vg, .xn--ogbpf8fl, & .xn--wgbl6a . Added to list 2 was .xn--lgbbat1ad8j -- booo. 2012-02-13: [ reacted due to errors ] http://jima.us/201103/ipv6-tld-hall-of-shame.txt 2011-03-30: Been a while! There are 11 new TLDs, most of which have IPv6 nameservers. No changes to list 1. Removed from list 2 were .cr, .ec, .hr, .om, .sb; added was new TLD .xn--ogbpf8fl. http://jima.us/201101/ipv6-tld-hall-of-shame.txt 2011-01-17: Removed .gs from list 2 (~ 2011-01-11) http://jima.us/201012/ipv6-tld-hall-of-shame.txt 2010-12-27: Added new TLD .xn--wgbl6a (added to root yesterday or so) http://jima.us/201012/ipv6-tld-hall-of-shame.txt.20101203 2010-12-03: Removed .pa from both lists http://jima.us/201011/ipv6-tld-hall-of-shame.txt 2010-11-12: Removed .gov from list 1 Removed .jo and .xn--mgbayh7gpa from list 2 http://jima.us/201010/ipv6-tld-hall-of-shame.txt 2010-10-27: Initial version.