Global IPv6 Deployment Progress Report

By Mike Leber

This page was developed in order to provide metrics for global IPv6 deployment. These statistics are updated daily. Please send questions, comments, or bugs to mleber@he.net

The tools for this report were developed while working on a paper titled "Going Native" about Hurricane's experience of adding extensive native IPv6 peering as a result of a core router and backbone upgrade.

Top Level Domains with IPv6 support

The root nameservers contain NS records listing the nameservers for the Top Level Domains (TLDs) and A and AAAA glue records to get to those nameservers. Top level domains include domain name suffixes such as .com .net .org .us .ca etc. Each TLD has specific authorative nameservers. To support IPv6 these nameservers should: Generated by parsing the root zonefile to get a list of TLDs and their associated nameservers, querying for AAAA records for the names of those nameservers and checking for AAAA records in the root zone for those nameservers.

Root Zone Downloaded: Mon Sep 1 00:30:07 2014
Root Zone Processed: Mon Sep 1 04:49:29 2014

Top Level Domains (TLDs): 700

TLDs with IPv6 nameservers: 668
Percentage of TLDs with IPv6 nameservers: 95.4%

ac academy accountants active actor ad ae aero af ag agency airforce al am an ao aq ar archi army arpa as asia associates at attorney au auction audio autos aw axa az ba bar bargains bayern be beer berlin best bf bg bi bid bike bio biz bj black blackfriday blue bm bmw bnpparibas bo boo boutique br brussels bs bt build builders business buzz bv bw by bz bzh ca cab camera camp cancerresearch capetown capital caravan cards care career careers cash cat catering cc cd center ceo cern cf cg ch cheap christmas church ci citic city cl claims cleaning click clinic clothing club cm cn co codes coffee college cologne com community company computer condos construction consulting contractors cooking cool coop country cr credit creditcard cruises cu cuisinella cv cw cx cy cymru cz dad dance dating day de deals degree democrat dental dentist desi diamonds diet digital direct directory discount dk dm dnp do domains durban dz eat ec edu education ee eg email engineer engineering enterprises equipment er es esq estate et eu eus events exchange expert exposed fail farm feedback fi finance financial fish fishing fitness fj flights florist fm fo foo foundation fr frl frogans fund furniture futbol ga gal gallery gb gbiz gd ge gent gg gh gi gift gifts gives gl glass global globo gm gmail gmo gn gop gov gp gq gr graphics gratis green gripe gs gt gu guide guitars guru gw gy hamburg haus healthcare help here hiphop hiv hk hn holdings holiday homes horse host hosting house how hr ht hu id ie il im immo immobilien in industries info ing ink institute insure int international investments io iq ir is it je jetzt jm jo jobs joburg jp juegos kaufen ke kg kh ki kim kitchen kiwi km kn koeln kr krd kred kw kz la lacaixa land lawyer lb lc lease lgbt li life lighting limited limo link lk loans london lotto lr ls lt ltda lu luxe luxury lv ly ma maison management mango market marketing mc md me media meet melbourne meme menu mg mh miami mini mk ml mm mn mo mobi moda moe monash mortgage moscow motorcycles mov mr ms mt mu museum mv mw mx my mz na nagoya name navy nc ne net network neustar new nf ng ngo nhk ninja nl no np nr nra nrw nu nyc nz okinawa om ong onl ooo org organic otsuka ovh pa paris partners parts pe pg ph photo photography photos physio pics pictures pink pizza pl place plumbing pm pn post pr praxi press pro prod productions properties property ps pt pub pw py qa qpon quebec re realtor recipes red rehab reise reisen ren rentals repair report republican rest restaurant reviews rich rio ro rocks rodeo rs rsvp ru ruhr rw ryukyu sa saarland sarl sb sc sca scb schmidt schule scot sd se services sexy sg sh shiksha shoes si singles sj sk sm sn so social software sohu solar solutions soy space spiegel su supplies supply support surf surgery suzuki sv sx sy systems sz tatar tattoo tax td technology tel tf tg th tienda tips tirol tj tk tl tm tn to today tokyo tools top town toys tp tr trade training travel tt tv tw tz ua ug uk university uno uol us uy va vacations vc ve vegas ventures versicherung vet vg vi viajes villas vision vlaanderen vn vodka vote voting voto voyage wales wang watch webcam website wed wf whoswho wien wiki williamhill works wtc wtf xn--1qqw23a xn--3bst00m xn--3ds443g xn--3e0b707e xn--45brj9c xn--4gbrim xn--55qw42g xn--55qx5d xn--6frz82g xn--6qq986b3xl xn--80adxhks xn--80ao21a xn--80asehdb xn--80aswg xn--90a3ac xn--c1avg xn--cg4bki xn--clchc0ea0b2g2a9gcd xn--czr694b xn--czru2d xn--d1acj3b xn--fiq228c5hs xn--fiq64b xn--fiqs8s xn--fiqz9s xn--fpcrj9c3d xn--fzc2c9e2c xn--gecrj9c xn--h2brj9c xn--i1b6b1a6a2e xn--io0a7i xn--j1amh xn--j6w193g xn--kprw13d xn--kpry57d xn--kput3i xn--lgbbat1ad8j xn--mgb9awbf xn--mgbaam7a8h xn--mgbab2bd xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--mgbx4cd0ab xn--ngbc5azd xn--nqv7f xn--nqv7fs00ema xn--o3cw4h xn--ogbpf8fl xn--p1ai xn--pgbs0dh xn--q9jyb4c xn--rhqv96g xn--s9brj9c xn--ses554g xn--unup4y xn--vhquv xn--wgbl6a xn--xhq521b xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zfr164b xxx xyz yachts yandex yokohama youtube yt za zm zone

TLDs with nameservers with IPv6 glue in the root zone: 662
Percentage of TLDs that have nameservers with IPv6 glue in the root zone: 94.6%

ac academy accountants active actor ad ae aero af ag agency airforce al am an ao aq ar archi army arpa as asia associates at attorney au auction audio autos aw axa az ba bar bargains bayern be beer berlin best bg bi bid bike bio biz bj black blackfriday blue bm bmw bnpparibas bo boo boutique br brussels bt build builders business buzz bv bw by bz bzh ca cab camera camp cancerresearch capetown capital caravan cards care career careers cash cat catering cc cd center ceo cern cf cg ch cheap christmas church ci citic city cl claims cleaning click clinic clothing club cm cn co codes coffee college cologne com community company computer condos construction consulting contractors cooking cool country cr credit creditcard cruises cu cuisinella cv cw cx cy cymru cz dad dance dating day de deals degree democrat dental dentist desi diamonds diet digital direct directory discount dk dm dnp do domains durban dz eat ec edu education ee eg email engineer engineering enterprises equipment er es esq estate et eu eus events exchange expert exposed fail farm feedback fi finance financial fish fishing fitness fj flights florist fm fo foo foundation fr frl frogans fund furniture futbol ga gal gallery gb gbiz gd ge gent gg gh gi gift gifts gives gl glass global globo gm gmail gmo gn gop gov gp gq gr graphics gratis green gripe gs gt gu guide guitars guru gw gy hamburg haus healthcare help here hiphop hiv hk hn holdings holiday homes horse host hosting house how hr ht hu id ie il im immo immobilien in industries info ing ink institute insure int international investments io iq ir is it je jetzt jm jo jobs joburg jp juegos kaufen ke kg kh ki kim kitchen kiwi km kn koeln kr krd kred kw kz la lacaixa land lawyer lb lc lease lgbt li life lighting limited limo link lk loans london lotto lr ls lt ltda lu luxe luxury lv ly ma maison management mango market marketing mc md me media meet melbourne meme menu mg miami mini mk ml mm mn mo mobi moda moe monash mortgage moscow motorcycles mov mr ms mt mu museum mw mx my mz na nagoya name navy nc ne net network neustar new nf ng ngo nhk ninja nl no np nr nra nrw nu nyc nz okinawa om ong onl ooo org organic otsuka ovh pa paris partners parts pe pg ph photo photography photos physio pics pictures pink pizza pl place plumbing pm pn post pr praxi press pro prod productions properties property ps pt pub pw py qa qpon quebec re realtor recipes red rehab reise reisen ren rentals repair report republican rest restaurant reviews rich rio ro rocks rodeo rs rsvp ru ruhr rw ryukyu sa saarland sarl sb sc sca scb schmidt schule scot sd se services sexy sg sh shiksha shoes si singles sj sk sm sn so social software sohu solar solutions soy space spiegel su supplies supply support surf surgery suzuki sv sx sy systems sz tatar tattoo tax td technology tel tf tg th tienda tips tirol tj tk tl tm tn to today tokyo tools top town toys tp tr trade training travel tt tv tw tz ua ug uk university uno uol us uy va vacations vc ve vegas ventures versicherung vet vg vi viajes villas vision vlaanderen vn vodka vote voting voto voyage wales wang watch webcam website wed wf whoswho wien wiki williamhill works wtc wtf xn--1qqw23a xn--3bst00m xn--3ds443g xn--3e0b707e xn--45brj9c xn--4gbrim xn--55qw42g xn--55qx5d xn--6frz82g xn--6qq986b3xl xn--80adxhks xn--80ao21a xn--80asehdb xn--80aswg xn--90a3ac xn--c1avg xn--cg4bki xn--clchc0ea0b2g2a9gcd xn--czr694b xn--czru2d xn--d1acj3b xn--fiq228c5hs xn--fiq64b xn--fiqs8s xn--fiqz9s xn--fpcrj9c3d xn--fzc2c9e2c xn--gecrj9c xn--h2brj9c xn--i1b6b1a6a2e xn--io0a7i xn--j1amh xn--j6w193g xn--kprw13d xn--kpry57d xn--kput3i xn--mgb9awbf xn--mgbaam7a8h xn--mgbab2bd xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--mgbx4cd0ab xn--ngbc5azd xn--nqv7f xn--nqv7fs00ema xn--o3cw4h xn--ogbpf8fl xn--p1ai xn--pgbs0dh xn--q9jyb4c xn--rhqv96g xn--s9brj9c xn--ses554g xn--unup4y xn--vhquv xn--wgbl6a xn--xhq521b xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zfr164b xxx xyz yachts yandex yokohama youtube yt za zm zone

Registered domains with AAAA records

Generated by querying for A (IPv4) and AAAA (IPv6) records for all domains in the listed TLDs (top level domains). Demonstrates growing use of AAAA records for the primary domain name of websites and other Internet services. (Note: we would like to add any TLDs that will allow us access for daily downloads.)
     TLD   domains         A      AAAA    A-glue AAAA-glue                downloaded                   processed
     com 114198506  99909248   2549381   2141668      7786  (Mon Sep  1 00:44:52 2014)  (Mon Sep  1 04:48:19 2014)
     net  15091806  12554674    443803    397401      6095  (Mon Sep  1 00:47:18 2014)  (Mon Sep  1 04:48:28 2014)
      de  13155766   9372368   2401485    398186       114  (Wed Jan 20 01:22:39 2010)  (Mon Sep  1 04:48:56 2014)
     org  10403542   8991695    321673    361908      3389  (Mon Sep  1 00:47:42 2014)  (Mon Sep  1 04:48:35 2014)
    info   5610437   4804386    276354    178761      1137  (Mon Sep  1 00:48:12 2014)  (Mon Sep  1 04:48:38 2014)
     biz   2610697   2177533     83469     45702       232  (Mon Sep  1 00:49:30 2014)  (Mon Sep  1 04:48:41 2014)
      us   1817263   1557818     24345     35087       229  (Mon Sep  1 00:49:21 2014)  (Mon Sep  1 04:48:42 2014)
      ca   1420247    811003      4637     16053        17  (Wed Jul 14 01:06:25 2010)  (Mon Sep  1 04:48:46 2014)
    mobi    899498    727173     13704     13955        77  (Mon Sep  1 00:49:04 2014)  (Mon Sep  1 04:48:39 2014)
      me    714003    452149     11739     22098       201  (Thu Sep 19 02:15:53 2013)  (Mon Sep  1 04:49:00 2014)
      hu    618473    444420      2448     30735       128  (Wed Jan  2 01:33:31 2013)  (Mon Sep  1 04:48:58 2014)
      ir    428763    216642       780     18303        13  (Thu Jan  9 00:39:15 2014)  (Mon Sep  1 04:48:58 2014)
      no    422532    243760      2087      1383         3  (Fri Apr  3 02:10:44 2009)  (Mon Sep  1 04:49:01 2014)
    asia    268565    201618      4944      7206        85  (Mon Sep  1 00:49:46 2014)  (Mon Sep  1 04:48:42 2014)
      sk    261188    173156     16537      3687        34  (Fri Apr 27 00:58:22 2012)  (Mon Sep  1 04:49:03 2014)
      pt    148142     68753       493      7451        58  (Tue Mar 22 01:43:34 2011)  (Mon Sep  1 04:49:02 2014)
     tel    135267    127001         0       370        10  (Mon Sep  1 00:50:16 2014)  (Mon Sep  1 04:48:43 2014)
      hk    116765     78710       676      2263        37  (Tue Aug 19 01:39:10 2014)  (Mon Sep  1 04:48:57 2014)
     xxx    106240     90124        60       168         3  (Mon Jan  2 01:49:20 2012)  (Mon Sep  1 04:49:08 2014)
      pk     44768     28907       152      2044         0  (Fri Jul 12 01:05:38 2013)  (Mon Sep  1 04:49:02 2014)
      kz     42493     22713       348     65009         0  (Sun Apr 18 01:14:46 2010)  (Mon Sep  1 04:48:59 2014)
    aero     33449      6877       158       518         1  (Mon Sep  1 00:48:37 2014)  (Mon Sep  1 04:48:38 2014)
xn--j6w193g     32706     10568       147        34         3  (Tue Aug 19 01:43:09 2014)  (Mon Sep  1 04:49:08 2014)
      ma     31415      6847        44     33934         0  (Wed Dec  9 02:20:47 2009)  (Mon Sep  1 04:49:00 2014)
      bg     24721     15842        82      1858        20  (Wed Jan 12 01:40:00 2011)  (Mon Sep  1 04:48:45 2014)
      ge     17602     12462       121       522         1  (Sat Sep 21 00:43:44 2013)  (Mon Sep  1 04:48:57 2014)
      tc     16461      5787        33       195         1  (Sat Feb  9 00:52:50 2013)  (Mon Sep  1 04:49:05 2014)
      am     15428      7096       141       632         7  (Fri Oct 29 00:33:47 2010)  (Mon Sep  1 04:48:44 2014)
      to     15291     12354       492      1033         0  (Mon Sep  1 00:54:54 2014)  (Mon Sep  1 04:49:05 2014)
      ac     15116     13089       102       233         0  (Fri Oct 22 00:35:54 2010)  (Mon Sep  1 04:48:43 2014)
      ag     14031      7074       345       257         0  (Tue Nov 30 01:39:20 2010)  (Mon Sep  1 04:48:44 2014)
      gt     13895     10299        84       398         2  (Mon Sep  1 00:52:13 2014)  (Mon Sep  1 04:48:57 2014)
      ly     12026      5703        52       119         0  (Sun Jul  8 01:43:02 2012)  (Mon Sep  1 04:49:00 2014)
      cm     11962      8030        53       146         1  (Sun Aug 31 00:58:45 2014)  (Mon Sep  1 04:48:46 2014)
      uz     11329      5549        79      1811         0  (Mon Jul  4 01:49:14 2011)  (Mon Sep  1 04:49:06 2014)
      az     11103      6666        98      6422        16  (Sun Jan 22 01:41:03 2012)  (Mon Sep  1 04:48:44 2014)
      ba      9572      5722       252      7697         0  (Sat Jun  5 01:05:06 2010)  (Mon Sep  1 04:48:45 2014)
      pe      8772      3524        25       178         0  (Wed Feb 10 01:19:43 2010)  (Mon Sep  1 04:49:02 2014)
      lk      8512      4565        42     12198        16  (Sat Sep  3 01:48:08 2011)  (Mon Sep  1 04:48:59 2014)
      ec      8469      3537        42       129         4  (Fri Aug  5 01:49:25 2011)  (Mon Sep  1 04:48:56 2014)
xn--j1amh      8407      7145       787        32         2  (Mon Sep  1 00:56:04 2014)  (Mon Sep  1 04:49:07 2014)
      vg      8402      3546        47       131         1  (Thu Jan 31 00:48:52 2013)  (Mon Sep  1 04:49:07 2014)
      bm      8109      2315         5       125         0  (Thu Nov 22 01:46:29 2012)  (Mon Sep  1 04:48:45 2014)
    coop      7742      5818        58       383         0  (Mon Sep  1 00:50:08 2014)  (Mon Sep  1 04:48:43 2014)
      sv      7386      5011        18      3142         0  (Mon Sep  1 00:54:52 2014)  (Mon Sep  1 04:49:04 2014)
      al      6967      3365        23        64         0  (Sat Apr 21 00:39:08 2012)  (Mon Sep  1 04:48:44 2014)
      tj      6666      4225       122       103         0  (Mon Oct 14 01:38:44 2013)  (Mon Sep  1 04:49:05 2014)
      jm      6380      2763         6      6857         0  (Tue Dec  6 01:43:11 2011)  (Mon Sep  1 04:48:59 2014)
      cr      5880      2727        31       292         0  (Mon Jul 23 02:05:13 2012)  (Mon Sep  1 04:48:47 2014)
      tn      5621      1589        28        16         1  (Wed May  9 00:46:58 2012)  (Mon Sep  1 04:49:05 2014)
      do      5276      2895        43       108         1  (Thu Apr 11 01:39:48 2013)  (Mon Sep  1 04:48:56 2014)
      ps      4890      2127        29       100         0  (Mon Nov  1 00:40:56 2010)  (Mon Sep  1 04:49:02 2014)
      kg      4774      2666        54       289         0  (Fri Dec  9 01:42:34 2011)  (Mon Sep  1 04:48:59 2014)
      hn      4742      2862        40       163         1  (Mon Mar 18 00:44:42 2013)  (Mon Sep  1 04:48:57 2014)
      gl      4630      2152        77        17         0  (Thu Aug  4 01:49:07 2011)  (Mon Sep  1 04:48:57 2014)
      sc      4279      3247        83       249        15  (Mon Sep  1 00:54:27 2014)  (Mon Sep  1 04:49:02 2014)
      gd      4257      1730        50        26         1  (Wed Feb 20 00:34:32 2013)  (Mon Sep  1 04:48:57 2014)
      ci      3996      2834        24        72         0  (Mon Sep  1 00:51:06 2014)  (Mon Sep  1 04:48:46 2014)
      tm      3788      2234        25        42         0  (Fri Oct 22 00:43:17 2010)  (Mon Sep  1 04:49:05 2014)
      sn      3562      1232        12       289         1  (Fri Dec  2 01:44:58 2011)  (Mon Sep  1 04:49:03 2014)
      io      3421      2313       169        98         0  (Fri Oct 22 00:38:53 2010)  (Mon Sep  1 04:48:58 2014)
      ug      3258      1283        16        75         0  (Mon Nov  9 02:12:10 2009)  (Mon Sep  1 04:49:06 2014)
      fo      3118      2420       105        20         0  (Wed Apr 17 01:40:22 2013)  (Mon Sep  1 04:48:56 2014)
      sh      3029      1613        86        85         2  (Fri Oct 22 00:42:38 2010)  (Mon Sep  1 04:49:02 2014)
      je      2730      1201        23        19         0  (Fri Jul 30 01:07:12 2010)  (Mon Sep  1 04:48:58 2014)
      tt      2374      1296         9        53         2  (Mon Oct  3 01:47:28 2011)  (Mon Sep  1 04:49:05 2014)
      mc      2327       953         7        25         0  (Mon Sep  1 00:53:05 2014)  (Mon Sep  1 04:49:00 2014)
      bs      2300      1096         6        82         0  (Wed Apr  6 02:05:29 2011)  (Mon Sep  1 04:48:45 2014)
      gg      2287      1197        21         9         0  (Fri Jul 30 01:06:34 2010)  (Mon Sep  1 04:48:57 2014)
      gy      2275      1724        91        44         0  (Mon Sep  1 00:52:13 2014)  (Mon Sep  1 04:48:57 2014)
      lc      1810       463         9        48         0  (Wed Oct 27 00:55:12 2010)  (Mon Sep  1 04:48:59 2014)
      pg      1732       844         2        32         0  (Mon Sep  1 00:53:53 2014)  (Mon Sep  1 04:49:02 2014)
      mw      1575       793         6         0         0  (Mon Sep  1 00:53:39 2014)  (Mon Sep  1 04:49:01 2014)
      jo      1559       873         6        39         0  (Fri Nov 18 01:45:28 2011)  (Mon Sep  1 04:48:59 2014)
      bi      1447      1026        16        17         1  (Mon Sep  1 00:50:42 2014)  (Mon Sep  1 04:48:45 2014)
      sr      1203       553         2        13         0  (Thu Oct 15 02:27:19 2009)  (Mon Sep  1 04:49:03 2014)
      sl      1161       792        14        37         0  (Mon Sep  1 00:54:34 2014)  (Mon Sep  1 04:49:03 2014)
      bf       982       430         8        96         0  (Mon Sep  1 00:50:37 2014)  (Mon Sep  1 04:48:45 2014)
      bb       839       454         1         2         0  (Mon Sep  1 00:50:36 2014)  (Mon Sep  1 04:48:45 2014)
      cv       834       557         9       184         8  (Fri Apr 27 00:55:54 2012)  (Mon Sep  1 04:48:47 2014)
      cu       809       222         7       653         8  (Mon Jan 24 01:48:44 2011)  (Mon Sep  1 04:48:47 2014)
      nf       738       429         4        12         0  (Thu Dec  9 01:43:21 2010)  (Mon Sep  1 04:49:01 2014)
      aw       616       286         1         3         0  (Fri Mar  8 01:38:55 2013)  (Mon Sep  1 04:48:44 2014)
      cw       532       311         8        22         0  (Mon Sep  1 00:51:17 2014)  (Mon Sep  1 04:48:47 2014)
      mo       393       233         4        80         0  (Mon Sep  1 00:53:21 2014)  (Mon Sep  1 04:49:01 2014)
      bj       366       210         7        38         0  (Wed Feb 15 01:41:41 2012)  (Mon Sep  1 04:48:45 2014)
      ao       350       164         6       168         2  (Thu Aug 21 00:38:28 2014)  (Mon Sep  1 04:48:44 2014)
      ga       350        63         3       514         0  (Wed Oct 26 01:47:11 2011)  (Mon Sep  1 04:48:56 2014)
      ki       283       130         1         0         0  (Wed Feb 15 01:43:02 2012)  (Mon Sep  1 04:48:59 2014)
      pf       277       192         2        35         0  (Mon Sep  1 00:53:49 2014)  (Mon Sep  1 04:49:02 2014)
      na       226        65         2         6         0  (Mon Aug 15 01:48:26 2011)  (Mon Sep  1 04:49:01 2014)
     int       186       121         3        69         1  (Mon Sep  1 00:52:25 2014)  (Mon Sep  1 04:48:58 2014)
      ni       155        98         2         5         0  (Mon Sep  1 00:53:43 2014)  (Mon Sep  1 04:49:01 2014)
      ne       149        52         5        82         0  (Sat May  5 01:50:39 2012)  (Mon Sep  1 04:49:01 2014)
      iq       149        80         2        14         0  (Thu Apr 25 00:36:24 2013)  (Mon Sep  1 04:48:58 2014)
      ml       117        55         1        24         0  (Wed Mar 27 00:37:25 2013)  (Mon Sep  1 04:49:01 2014)
      au        20         1         1        27         4  (Fri Apr  3 01:55:15 2009)  (Mon Sep  1 04:48:44 2014)
    arpa        10         1         0        12        12  (Mon Sep  1 00:30:12 2014)  (Mon Sep  1 04:48:44 2014)
  durban         3         2         0      1516         1  (Mon Sep  1 00:51:37 2014)  (Mon Sep  1 04:48:56 2014)
capetown         2         1         0      1041         1  (Mon Sep  1 00:51:02 2014)  (Mon Sep  1 04:48:46 2014)
  joburg         2         1         0       126         1  (Mon Sep  1 00:52:31 2014)  (Mon Sep  1 04:48:59 2014)

   total 168988569 143292523   6163734   3835677     19786

Total registered domains with AAAA records: 6163734

This tells you the number of registered domains that have added IPv6 for their primary domain, for the set of TLDs above, which is a partial listing based on what TLDs we could get access to. It does not include subdomains i.e. ipv6.google.com, which means our number is a lower bound and that the number of IPv6 enabled domains is even higher.

Eventually the really important number here is the total number of domains returning AAAA records. However, right now a large amount of the domains included in this number are the result of SEDO (search engine domain optimization) parking operations. By looking at the gradual increase in the people that have AAAA glue in the TLD zone files for their authorative nameservers we can tell that the trend of individual companies enabling IPv6 for their websites and other infrastructure is upwards.

Top 1000 Usenet Servers with IPv6 support

Generated by parsing the top 1000 usenet servers (from Top 1000 Usenet Servers) and querying for A and AAAA records. Note: Due to how the usenet protocol works not every listed usenet server has a direct addresses (some usenet server names are not fully qualified domain names).

Top 1000 Downloaded: Sat Nov 5 20:30:42 2011
Top 1000 Processed: Mon Sep 1 04:49:52 2014

Top 1000 Usenet Servers: 1000
Top 1000 Usenet Servers with a direct IPv4 address: 621
Top 1000 Usenet Servers with a direct IPv6 address: 122
Percentage of top 1000 Usenet Servers with direct addresses with IPv6 support: 19.65%

Networks Running IPv6

We can measure the percentage of networks running IPv6 by comparing the set of ASes in the IPv6 routing table to those in the combined set of IPv4 and IPv6.

IPv4 and IPv6 RIBs Last Parsed: Mon Sep 1 01:12:59 PDT 2014

IPv4 ASes: 48107

IPv6 ASes: 8742

ASes using only IPv4: 39523

ASes using only IPv6: 158

ASes using IPv4 and IPv6: 8584

ASes using IPv4 or IPv6: 48265

Percentage of ASes (IPv4 or IPv6) running IPv6: 18.1%

IPv6 rDNS Nameservers running IPv6

One amusing measure of IPv6 deployment to ask the question: What percentage of IPv6 reverse DNS servers are reachable via IPv6?

(ping tests and dns queries run from a server on Hurricane Electric's IPv4 and IPv6 backbone in Fremont, California.)

IPv6 rDNS Nameservers Last Polled: Sun Aug 31 06:56:12 PDT 2014

IPv6 Prefixes: 18240

IPv6 rDNS Nameservers: 9053

IPv6 rDNS Nameservers with an IPv4 address: 8893

IPv6 rDNS Nameservers with an IPv6 address: 4893

IPv6 rDNS Nameservers reachable via IPv4 (ping or dns): 7290

IPv6 rDNS Nameservers reachable via IPv6 (ping or dns): 3904

IPv6 rDNS Nameservers reachable via IPv4 or IPv6: 7670

IPv6 rDNS Nameservers reachable via IPv4 and IPv6: 3524

Percentage reachable IPv6 rDNS Nameservers reachable via IPv6: 50.9%

IPv6 Performance

Actually, the reason we looked at IPv6 reverse DNS servers was to get some hosts on both IPv6 and IPv4 so that we can compare IPv6 vs IPv4 latency.

IPv6 rDNS Nameservers where IPv6 is faster than IPv4 (by more than 1ms): 2376

IPv6 rDNS Nameservers where IPv4 and IPv6 are the same speed (within 1ms): 459

IPv6 rDNS Nameservers where IPv4 is faster than IPv6 (by more than 1ms): 689

IPv6 rDNS nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 2835

Percentage of IPv6 rDNS Nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 80.4%

Top Websites Running IPv6

A very quick way to measure IPv6 deployment for websites is just to check for a AAAA record in DNS.

Alexa provides an approximate list of the most popular sites on the web.

In the report below, the raw domain is the base domain, such as free.fr, which does not have an AAAA record (at the time of this writing. However www.free.fr *does* have a AAAA record. So we check both.

Another convention is to add an AAAA using ipv6 as a subdomain, i.e. ipv6.google.com. The reason so many domains show up as having A records for "ipv6." subdomains is because many domains use wildcard records in DNS which respond to queries for any subdomain.

Alexa Top 1 Million Domains Downloaded: Mon Sep 1 00:00:06 2014
Alexa Top 1 Million Domains Processed: Mon Sep 1 00:35:19 2014

Alexa 1M raw domains: 1000000
Alexa 1M raw with a direct IPv4 address: 954256
Alexa 1M raw with a direct IPv6 address: 52407

(top 100)
facebook.com 2a03:2880:2110:df07:face:b00c:0:1
wikipedia.org 2620:0:861:ed1a::1
youm7.com 2400:cb00:2048:1::be5d:f44e
popcash.net 2400:cb00:2048:1::be5d:fc07
yts.re 2a01:230:2::30b
google.com 2607:f8b0:400e:c03::64
google.co.jp 2607:f8b0:4005:800::1018
google.com.au 2607:f8b0:400e:c01::5e
cloudflare.com 2400:cb00:2048:1::c629:d49d
xhamster.com 2a02:b48:4000:7::4246:1
google.co.za 2607:f8b0:4005:802::100f
google.nl 2607:f8b0:4005:800::1017
mozilla.org 2620:101:8008:5::2:1
google.ro 2607:f8b0:400e:c03::5e
google.com.co 2607:f8b0:4005:802::100f
youtube.com 2607:f8b0:400e:c04::5d
google.cz 2607:f8b0:400e:c03::5e
google.co.in 2607:f8b0:4005:800::1018
google.fr 2607:f8b0:4007:804::1018
google.ch 2607:f8b0:4007:802::101f
google.co.uk 2607:f8b0:4007:804::101f
google.no 2607:f8b0:4005:802::1017
rutor.org 2001:470:25:c7::2
blogger.com 2607:f8b0:400e:c04::bf
google.es 2607:f8b0:4010:801::101f
google.fi 2607:f8b0:4010:801::101f
google.ca 2607:f8b0:4010:801::1017
google.pl 2607:f8b0:4007:804::101f
google.az 2607:f8b0:4010:801::1013
google.co.id 2607:f8b0:400e:c04::5e
google.de 2607:f8b0:400e:c02::5e
google.ru 2607:f8b0:4005:800::101f
google.com.ar 2607:f8b0:4005:802::1018
google.com.tr 2607:f8b0:4007:803::1017
flipkart.com 2001:df0:23e:9002::15
google.com.mx 2607:f8b0:4010:801::1018
blogspot.in 2607:f8b0:400e:c03::bf
google.co.il 2607:f8b0:4005:802::100f
blogspot.de 2607:f8b0:400e:c01::bf
eztv.it 2400:cb00:2048:1::a29f:f4f9
google.co.th 2607:f8b0:400e:c04::5e
blogspot.mx 2607:f8b0:400e:c04::bf
google.com.sa 2607:f8b0:400e:c04::5e
google.com.tw 2607:f8b0:4002:c09::5e
state.gov 2001:428:d400:4:72:166:186:151
gmail.com 2a00:1450:4017:800::1015
free-tv-video-online.me 2400:cb00:2048:1::681c:41b
google.kz 2607:f8b0:4005:800::1011
blogspot.jp 2607:f8b0:400e:c04::bf
google.sk 2607:f8b0:4000:804::101f
google.be 2607:f8b0:4010:801::101f
google.com.my 2607:f8b0:4005:802::100f
google.com.ua 2607:f8b0:400e:c04::5e
google.com.ng 2607:f8b0:4010:801::1018
google.co.kr 2607:f8b0:4004:803::100f
google.cn 2607:f8b0:400e:c04::a0
albawabhnews.com 2400:cb00:2048:1::a29f:ff4b
google.cl 2607:f8b0:4010:801::1017
google.com.pe 2607:f8b0:400e:c04::5e
google.bg 2607:f8b0:400e:c03::5e
google.com.kw 2607:f8b0:4010:801::1018
google.at 2607:f8b0:4005:800::1018
google.com.sg 2607:f8b0:4005:800::101f
google.com.hk 2607:f8b0:4007:802::1017
goo.gl 2607:f8b0:400a:803::1006
google.lk 2607:f8b0:400e:c02::5e
google.pt 2607:f8b0:4005:800::100f
google.co.nz 2607:f8b0:4007:804::100f
noaa.gov 2610:20:8000:8c01::24
google.com.br 2607:f8b0:4005:802::101f
blogspot.com.tr 2607:f8b0:400e:c02::bf
google.com.do 2607:f8b0:400a:803::100f
google.com.ec 2a00:1450:4007:807::101f
office.com 2a01:111:f406:8800::17
google.ae 2607:f8b0:4005:800::1018
google.dk 2607:f8b0:400e:c02::5e
doubleclick.com 2607:f8b0:4010:801::1006
google.rs 2607:f8b0:4002:c09::5e
zapbux.com 2400:cb00:2048:1::a29f:f096
registro.br 2001:12ff:0:2::3
google.hr 2607:f8b0:4010:801::101f
google.co.ve 2607:f8b0:4010:801::1018
google.se 2607:f8b0:4005:802::100f
google.by 2607:f8b0:4005:802::1010
android.com 2a00:1450:4017:801::1010
fusebux.com 2400:cb00:2048:1::a29f:f6d2
google.iq 2607:f8b0:4010:801::1018
fbcdn.net 2a03:2880:2110:df07:face:b00c:0:1
justunfollow.com 2400:cb00:2048:1::a29f:f9a5
google.lt 2607:f8b0:4005:800::101f
ijreview.com 2400:cb00:2048:1::6810:52b
thisav.com 2400:cb00:2048:1::8d65:793d
anitube.se 2400:cb00:2048:1::c629:f7db
sheknows.com 2400:cb00:2048:1::a29f:f4d7
google.co.hu 2607:f8b0:4010:801::100f
4cdn.org 2400:cb00:2048:1::8d65:721a
gtmetrix.com 2607:fcc0:6::2
google.com.gt 2607:f8b0:400e:c03::5e
urdupoint.com 2400:cb00:2048:1::a29f:f1d5
google.si 2607:f8b0:4010:801::101f

www. + Alexa 1M domains: 1000000
www. + Alexa 1M with a direct IPv4 address: 971750
www. + Alexa 1M with a direct IPv6 address: 68182

(top 100)
www.wikipedia.org 2620:0:863:ed1a::1
www.facebook.com 2a03:2880:f009:1:face:b00c:0:1
www.yahoo.com 2001:4998:f011:1fe::3000
www.apple.com 2600:1406:1:1:9000::c77
www.flipkart.com 2001:df0:23e:9002::15
www.php.net 2001:470:1:380::3
www.fbcdn.net 2a03:2880:11:1f04:face:b00c:0:1
www.youm7.com 2400:cb00:2048:1::be5d:f64e
www.mozilla.org 2620:101:8008:5::2:1
www.comcast.net 2600:1406:1::addf:e852
www.xhamster.com 2a02:b48:4000:1::4247
www.att.com 2600:1406:1:1:8c00::90e
www.wiktionary.org 2620:0:863:ed1a::1
www.eonline.com 2600:1406:1::addf:e853
www.life.com.tw 2400:cb00:2048:1::8d65:7b13
www.popcash.net 2400:cb00:2048:1::be5d:fc07
www.free-tv-video-online.me 2400:cb00:2048:1::681c:41b
www.mapquest.com 2001:4b0:1668:3c06:1::4
www.youtube.com 2607:f8b0:400e:c04::be
www.immobilienscout24.de 2600:1406:1:1:a200::1546
www.google.com 2607:f8b0:400e:c03::6a
www.google.co.uk 2607:f8b0:400e:c04::5e
www.google.fr 2607:f8b0:4007:804::1018
www.google.com.br 2607:f8b0:4005:802::1018
www.wpmudev.org 2400:cb00:2048:1::be5d:f70c
www.google.de 2607:f8b0:4005:802::1018
www.blogger.com 2607:f8b0:400e:c04::bf
www.blogspot.com 2001:4860:400b:c01::bf
www.google.es 2607:f8b0:400a:805::101f
www.google.ca 2607:f8b0:4010:801::100f
www.google.com.mx 2607:f8b0:4010:801::101f
www.google.co.in 2607:f8b0:4005:800::1017
www.googleusercontent.com 2607:f8b0:400a:803::100a
www.google.it 2607:f8b0:4010:801::101f
www.google.ru 2607:f8b0:4005:800::101f
www.google.pl 2607:f8b0:4007:804::101f
www.google.com.au 2607:f8b0:400e:c01::5e
www.google.co.id 2607:f8b0:4005:800::1018
www.google.co.jp 2607:f8b0:4005:800::101f
www.google.com.hk 2607:f8b0:4007:802::100f
www.google.com.tr 2607:f8b0:4005:800::100f
www.google.com.eg 2a00:1450:4001:80a::1018
www.google.co.th 2607:f8b0:400e:c04::5e
www.cloudflare.com 2400:cb00:2048:1::c629:d6a3
www.google.com.sa 2607:f8b0:4005:802::1018
www.google.com.ar 2607:f8b0:4005:802::1017
www.blogspot.in 2607:f8b0:400e:c03::bf
www.google.nl 2607:f8b0:4005:800::1018
www.google.com.pk 2a00:1450:4007:807::1017
www.google.co.za 2607:f8b0:4005:802::100f
www.gmail.com 2a00:1450:4017:800::1015
www.google.be 2607:f8b0:4010:801::101f
www.google.com.my 2607:f8b0:4005:802::100f
www.google.com.ua 2607:f8b0:4005:802::1017
www.google.co.ve 2607:f8b0:4010:801::1017
www.google.com.co 2607:f8b0:4005:802::1018
www.google.co.kr 2607:f8b0:4009:803::100f
www.google.ro 2607:f8b0:400e:c03::5e
www.google.com.vn 2607:f8b0:400e:c04::5e
www.google.gr 2607:f8b0:4005:800::100f
www.google.com.ph 2607:f8b0:4005:802::1017
www.brainyquote.com 2400:cb00:2048:1::8d65:711a
www.google.com.sg 2607:f8b0:400e:c01::5e
www.google.pt 2607:f8b0:4005:800::1017
www.google.cz 2607:f8b0:400e:c03::5e
www.google.com.ng 2607:f8b0:4010:801::1018
www.google.dz 2607:f8b0:4010:801::101f
www.google.cl 2607:f8b0:4010:801::101f
www.google.ch 2607:f8b0:4007:802::1018
www.google.at 2607:f8b0:4005:800::100f
www.java.com 2600:1406:1:1:8500::246a
www.google.com.pe 2607:f8b0:4005:800::1017
www.google.com.bd 2001:4860:400b:c01::5e
www.google.no 2001:4860:400b:c01::5e
www.fusebux.com 2400:cb00:2048:1::a29f:f6d2
www.google.az 2607:f8b0:4010:801::1018
www.google.ae 2607:f8b0:400e:c01::5e
www.google.ie 2607:f8b0:4005:802::101f
www.ijreview.com 2400:cb00:2048:1::6810:22b
www.google.co.il 2607:f8b0:4005:802::101f
www.google.co.hu 2607:f8b0:400a:805::101f
www.goo.gl 2607:f8b0:400a:803::1000
www.google.dk 2607:f8b0:4005:802::1018
www.blogspot.mx 2607:f8b0:400e:c04::bf
www.blogspot.de 2607:f8b0:400e:c01::bf
www.nasa.gov 2607:f4e8:100:a000::e
www.google.fi 2607:f8b0:4010:801::100f
www.eztv.it 2400:cb00:2048:1::a29f:f3f9
www.bab.la 2400:cb00:2048:1::681c:171e
www.google.sk 2607:f8b0:4000:804::101f
www.google.kz 2607:f8b0:4005:800::100f
www.stanford.edu 2607:f6d0:0:925a::ab43:d7c8
www.google.cn 2607:f8b0:400e:c04::a0
www.google.com.kw 2001:4860:400b:c01::5e
www.albawabhnews.com 2400:cb00:2048:1::a29f:fe4b
www.google.bg 2607:f8b0:400e:c03::5e
www.google.lk 2607:f8b0:4005:802::100f
www.zone-telechargement.com 2a03:5180:0:7::2
www.blogspot.com.tr 2607:f8b0:400e:c02::bf
www.seriespepito.com 2a00:1d70:c01c::71:121

ipv6. + Alexa 1M domains: 1000000
ipv6. + Alexa 1M with a direct IPv4 address: 226957
ipv6. + Alexa 1M with a direct IPv6 address: 27254

(top 100)
ipv6.mozilla.org 2620:101:8008:5::2:8
ipv6.cnn.com 2620:100:e000::8001
ipv6.flipkart.com 2001:df0:23e:9002::15
ipv6.youm7.com 2400:cb00:2048:1::be5d:f64e
ipv6.netflix.com 2620:0:ef0:13::20
ipv6.bloomberg.com 2600:1406:1::addf:e83b
ipv6.ebay.com 2620:0:501:429::feed:bacc
ipv6.google.com 2607:f8b0:400e:c03::71
ipv6.rutor.org 2001:470:25:c7::2
ipv6.googleusercontent.com 2607:f8b0:400a:803::100a
ipv6.scribd.com 2607:f0d0:1004:2::4
ipv6.blogspot.com 2607:f8b0:4010:801::100c
ipv6.google.com.hk 2607:f8b0:4007:802::1005
ipv6.tickld.com 2400:cb00:2048:1::c629:d140
ipv6.blogspot.mx 2607:f8b0:4007:804::100c
ipv6.miniclip.com 2a02:5f8:1:46d::120
ipv6.outlook.com 2a01:111:f400:1800::6
ipv6.cisco.com 2001:420:1101:1::a
ipv6.blogspot.com.tr 2607:f8b0:400a:803::100b
ipv6.series.ly 2400:cb00:2048:1::681c:1c
ipv6.nasa.gov 2600:1406:3::b81c:bcd0
ipv6.t-mobile.com 2607:fb90:beef:c137::3
ipv6.google.co.jp 2607:f8b0:4005:800::1006
ipv6.blogspot.in 2607:f8b0:4010:801::100b
ipv6.blogspot.tw 2607:f8b0:4005:802::100a
ipv6.xkcd.com 2001:4830:120:1::2
ipv6.rutube.ru 2001:67c:25d0:200::2
ipv6.archive.org 2620:0:9c0:6::4
ipv6.beatport.com 2620:56:8000:4000:0:1:1:1
ipv6.blogspot.jp 2607:f8b0:4005:800::100b
ipv6.googleapis.com 2a00:1450:4013:c01::5f
ipv6.google.cn 2607:f8b0:4007:804::1009
ipv6.ovh.com 2001:41d0:1:1b00:213:186:33:34
ipv6.blogspot.de 2607:f8b0:400a:800::100c
ipv6.cox.net 2001:578:0:6e2::80
ipv6.berkeley.edu 2607:f140:ffff:ffff::80
ipv6.autoblog.com 2001:4b0:1668:2211:1::2
ipv6.lindaikeji.blogspot.com 2607:f8b0:400e:c04::84
ipv6.cpanel.net 2620:0:28a0:1528:230:48ff:fece:9f78
ipv6.rivals.com 2001:4998:c:a06::2:4001
ipv6.cornell.edu 2620:110:d000:12::50
ipv6.usopen.org 2001:2031:0:4::d1aa:5bc8
ipv6.terra.com.br 2001:12c0:0:aaaa:200:154:56:96
ipv6.sex.com 2607:fc10:1:400::82
ipv6.techinasia.com 2400:cb00:2048:1::681c:1d07
ipv6.animeflv.net 2400:cb00:2048:1::8d65:7cc2
ipv6.zynga.com 2620:102:8000:200::127
ipv6.fbsbx.com 2a03:2880:2050:1f08:face:b00c:0:1
ipv6.blogspot.nl 2607:f8b0:4010:801::100a
ipv6.mapquest.com 2001:4b0:1668:2211:1::4
ipv6.storify.com 2400:cb00:2048:1::8d65:73d7
ipv6.blackberry.com 2607:ffc0:d:1:208:65:75:22
ipv6.sergey-mavrodi.com 2400:cb00:2048:1::a29f:fefd
ipv6.blogspot.ru 2607:f8b0:400e:c02::84
ipv6.avaaz.org 2400:cb00:2048:1::8d65:73d5
ipv6.videoyoum7.com 2400:cb00:2048:1::c629:bbb0
ipv6.sprint.com 2600::ffff
ipv6.stocktwits.com 2400:cb00:2048:1::681c:141
ipv6.grammarly.com 2600:3c03::f03c:91ff:fe93:9c7c
ipv6.upenn.edu 2600:1406:1::addf:e84b
ipv6.seriespepito.com 2a00:1d70:c01c::71:121
ipv6.blogspot.kr 2607:f8b0:4005:800::100a
ipv6.edublogs.org 2400:cb00:2048:1::be5d:f4d3
ipv6.blizzard.com 2620:10b:9006:600:dad3:85ff:fed9:ce24
ipv6.fasttech.com 2400:cb00:2048:1::be5d:f161
ipv6.enlacespepito.com 2a00:1d70:c01c::168:21
ipv6.withgoogle.com 2607:f8b0:400e:c04::8d
ipv6.frandroid.com 2400:cb00:2048:1::681c:313
ipv6.huawei.com 2600:1406:1::addf:e858
ipv6.teamliquid.net 2001:48c8:1:400::2
ipv6.sdpnoticias.com 2001:4801:7901:0:d0b1:3a58:0:2
ipv6.blogspot.ch 2607:f8b0:4010:801::100b
ipv6.blogspot.fi 2607:f8b0:4002:c09::84
ipv6.joystiq.com 2001:4b0:1668:2211:1::2
ipv6.piktochart.com 2400:cb00:2048:1::a29f:f746
ipv6.redhat.com 2620:52:1:1:209:132:183:181
ipv6.blogspot.hu 2607:f8b0:4005:800::100c
ipv6.enom.com 2620:10f:5000:5000::2
ipv6.googlecode.com 2607:f8b0:400e:c01::52
ipv6.fark.com 2607:f100:3:164:fa12:1c:bee:12
ipv6.boards.ie 2a01:258:f000:3::107
ipv6.yandex.ru 2a02:6b8::3
ipv6.cocolog-nifty.com 2001:258:8602:432:202:248:45:17
ipv6.so.com 240e:83:1::a45d:36fc:59ed
ipv6.icefilms.info 2400:cb00:2048:1::681c:377
ipv6.majesticseo.com 2a00:17f8:50:a2::15
ipv6.harvestapp.com 2001:1838:2001:e::178
ipv6.bbc.co.uk 2001:4b10:bbc::2
ipv6.edgesuite.net 2600:1406:1::addf:e848
ipv6.akamai.com 2600:1406:1::addf:e821
ipv6.telmex.com 2806:1080:101::1a
ipv6.moodle.org 2400:cb00:2048:1::8d65:7b3b
ipv6.mtsindia.in 2406:5600:7:1::3
ipv6.taobao.com 2401:2e00:ffff:fe01::18
ipv6.yandex.com.tr 2a02:6b8::224
ipv6.blogspot.hk 2607:f8b0:4007:802::100b
ipv6.tnr.com 2001:4801:7821:77:c5ce:526c:ff10:a969
ipv6.360.cn 240e:83:1::a45d:36fc:59ed
ipv6.yandex.ua 2a02:6b8::3
ipv6.navy.mil 2600:1406:1::addf:e84b