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: Fri Mar 9 00:30:03 2012
Root Zone Processed: Fri Mar 9 05:17:18 2012

Top Level Domains (TLDs): 313

TLDs with IPv6 nameservers: 266
Percentage of TLDs with IPv6 nameservers: 85.0%

ac ad ae aero af ag al am an ao aq ar arpa as asia at au aw az ba be bf bg bi biz bm br bs bt bv bw by bz ca cat cd cf cg ch ci cl cm cn co com coop cr cu cv cw cy cz de dk dm do dz ec edu ee eg er es et eu fi fj fm fr ga gb gd ge gg gh gi gl gn gov gp gq gr gs gt gu gw gy hk hn hr ht hu id ie il im in info int io ir is it je jm jo jp ke kg kh ki km kn kr kw kz la lb lc li lk lr ls lt lu lv ly ma mc md me mg mk ml mm mn mo mobi mr ms mt mu museum mv mw mx my mz na nc ne net nf ng nl no np nr nu nz om org pa pe pg ph pl pm pn pr ps pt py qa re ro rs ru rw sa sb sc sd se sg sh si sj sk sm sn so su sv sx sy sz tc tel tf th tj tk tm tn to tp tr travel tt tw tz ua ug uk us uy va vc ve vg vn wf xn--0zwm56d xn--11b5bs3a9aj6g xn--3e0b707e xn--45brj9c xn--80akhbyknj4f xn--80ao21a xn--90a3ac xn--9t4b11yi5a xn--clchc0ea0b2g2a9gcd xn--deba0ad xn--fiqs8s xn--fiqz9s xn--fpcrj9c3d xn--fzc2c9e2c xn--g6w251d xn--gecrj9c xn--h2brj9c xn--hgbk6aj7f53bba xn--hlcj6aya9esc7a xn--j6w193g xn--jxalpdlp xn--kgbechtv xn--kprw13d xn--kpry57d xn--mgbaam7a8h xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--o3cw4h xn--ogbpf8fl xn--p1ai xn--pgbs0dh xn--s9brj9c xn--wgbl6a xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zckzah xxx yt za zm

TLDs with nameservers with IPv6 glue in the root zone: 258
Percentage of TLDs that have nameservers with IPv6 glue in the root zone: 82.4%

ac ad ae aero af ag al am an ao aq ar arpa as asia at au az ba be bg bi biz bm br bt bw by bz ca cat cd cf cg ch ci cl cn co com cr cu cv cw cy cz de dk dm do dz ec edu ee eg er es et eu fi fj fm fr ga gb gd ge gg gh gi gl gn gov gp gq gr gs gt gu gw gy hk hn hr ht hu id ie il im in info int io ir is it je jm jo jp ke kg kh ki km kn kr kw kz la lb lc li lk lr ls lt lu lv ly ma mc md me mg mk ml mm mn mo mobi mr ms mt mu museum mw mx my mz na nc ne net nf ng nl no np nr nu nz om org pa pe pg ph pl pm pn pr ps pt py qa re ro rs ru rw sa sb sc sd se sg sh si sk sm sn so su sv sx sy sz tc tel tf th tj tk tm tn to tp tr travel tt tw tz ua ug uk us uy va vc ve vg vn wf xn--0zwm56d xn--11b5bs3a9aj6g xn--3e0b707e xn--45brj9c xn--80akhbyknj4f xn--80ao21a xn--90a3ac xn--9t4b11yi5a xn--clchc0ea0b2g2a9gcd xn--deba0ad xn--fiqs8s xn--fiqz9s xn--fpcrj9c3d xn--fzc2c9e2c xn--g6w251d xn--gecrj9c xn--h2brj9c xn--hgbk6aj7f53bba xn--hlcj6aya9esc7a xn--j6w193g xn--jxalpdlp xn--kgbechtv xn--kprw13d xn--kpry57d xn--mgbaam7a8h xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--o3cw4h xn--ogbpf8fl xn--p1ai xn--pgbs0dh xn--s9brj9c xn--wgbl6a xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zckzah xxx yt za zm

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 101349778  90950442    758015   2041191      2675  (Fri Mar  9 00:33:45 2012)  (Fri Mar  9 05:16:27 2012)
     net  14589391  12535078    170206    426687      2898  (Fri Mar  9 00:34:41 2012)  (Fri Mar  9 05:16:33 2012)
      de  13155766  10665817   2042711    398186       114  (Wed Jan 20 01:22:39 2010)  (Fri Mar  9 05:16:53 2012)
     org   9867619   8679902    104304    307783      1445  (Fri Mar  9 00:35:01 2012)  (Fri Mar  9 05:16:38 2012)
    info   8117061   6948054    102836    300486       631  (Fri Mar  9 00:35:17 2012)  (Fri Mar  9 05:16:41 2012)
     biz   2205100   1869007     35652     24545        64  (Fri Mar  9 00:36:04 2012)  (Fri Mar  9 05:16:42 2012)
      us   1727188   1515567      3478     17423        97  (Fri Mar  9 00:35:47 2012)  (Fri Mar  9 05:16:43 2012)
      ca   1420247    993078       747     16053        17  (Wed Jul 14 01:06:25 2010)  (Fri Mar  9 05:16:46 2012)
    mobi   1037210    849486      7691      5468        62  (Fri Mar  9 00:35:27 2012)  (Fri Mar  9 05:16:41 2012)
      no    422532    270024       547      1383         3  (Fri Apr  3 02:10:44 2009)  (Fri Mar  9 05:16:55 2012)
     tel    298191    265432         0       345        10  (Fri Mar  9 01:42:02 2012)  (Fri Mar  9 05:16:44 2012)
      sk    257368    219068     13696      3628        31  (Fri Mar  9 01:46:07 2012)  (Fri Mar  9 05:16:56 2012)
    asia    200229    147289      4238      3159        88  (Fri Mar  9 00:36:08 2012)  (Fri Mar  9 05:16:44 2012)
      pt    148142     88868       434      7451        58  (Tue Mar 22 01:43:34 2011)  (Fri Mar  9 05:16:56 2012)
     xxx    106240    103671        54       168         3  (Mon Jan  2 01:49:20 2012)  (Fri Mar  9 05:16:57 2012)
      kz     42493     23385       114     65009         0  (Sun Apr 18 01:14:46 2010)  (Fri Mar  9 05:16:55 2012)
    aero     32275      5540        35       411         0  (Fri Mar  9 00:35:20 2012)  (Fri Mar  9 05:16:41 2012)
      ma     31415      7483         8     33934         0  (Wed Dec  9 02:20:47 2009)  (Fri Mar  9 05:16:55 2012)
      bg     24721     17710        42      1858        20  (Wed Jan 12 01:40:00 2011)  (Fri Mar  9 05:16:45 2012)
      ge     16755     14659        21       388         1  (Fri Mar  9 01:43:19 2012)  (Fri Mar  9 05:16:54 2012)
      am     15428      8754        41       632         7  (Fri Oct 29 00:33:47 2010)  (Fri Mar  9 05:16:45 2012)
      ac     15116     13056        29       233         0  (Fri Oct 22 00:35:54 2010)  (Fri Mar  9 05:16:44 2012)
      to     14739     11731       119      1130         0  (Fri Mar  9 01:46:07 2012)  (Fri Mar  9 05:16:56 2012)
    coop     14360     12382         8       332         0  (Fri Mar  9 01:41:59 2012)  (Fri Mar  9 05:16:44 2012)
      ag     14031      9011       133       257         0  (Tue Nov 30 01:39:20 2010)  (Fri Mar  9 05:16:44 2012)
      cm     12453      9881        12       143         0  (Fri Mar  9 01:42:46 2012)  (Fri Mar  9 05:16:47 2012)
      uz     11329      7318        68      1811         0  (Mon Jul  4 01:49:14 2011)  (Fri Mar  9 05:16:57 2012)
      az     11103      9585        18      6422        16  (Sun Jan 22 01:41:03 2012)  (Fri Mar  9 05:16:45 2012)
      tc     10776      8735        61       231         0  (Fri Mar  9 01:45:58 2012)  (Fri Mar  9 05:16:56 2012)
      ly     10503      7347        18       122         0  (Fri Mar  9 01:44:24 2012)  (Fri Mar  9 05:16:55 2012)
      gt      9902      7518         3       398         2  (Fri Mar  9 01:44:02 2012)  (Fri Mar  9 05:16:54 2012)
      ba      9572      6915        16      7697         0  (Sat Jun  5 01:05:06 2010)  (Fri Mar  9 05:16:45 2012)
      pe      8772      3923        10       178         0  (Wed Feb 10 01:19:43 2010)  (Fri Mar  9 05:16:55 2012)
      lk      8512      5973         7     12198        16  (Sat Sep  3 01:48:08 2011)  (Fri Mar  9 05:16:55 2012)
      ec      8469      4597        23       129         4  (Fri Aug  5 01:49:25 2011)  (Fri Mar  9 05:16:53 2012)
      vg      8308      6228        60       116         0  (Fri Mar  9 01:46:14 2012)  (Fri Mar  9 05:16:57 2012)
      bm      7901      2204         1       123         0  (Fri Mar  9 01:42:57 2012)  (Fri Mar  9 05:16:46 2012)
      al      6597      4161         6        62         0  (Fri Mar  9 01:42:17 2012)  (Fri Mar  9 05:16:45 2012)
      tj      5967      3892        44       102         0  (Mon Aug  1 02:10:20 2011)  (Fri Mar  9 05:16:56 2012)
      cr      5583      3333         9       281         0  (Fri Mar  9 01:42:45 2012)  (Fri Mar  9 05:16:47 2012)
      sv      5391      3597         1      3150         0  (Fri Mar  9 01:45:58 2012)  (Fri Mar  9 05:16:56 2012)
      tn      5087       999        10        16         1  (Fri Mar  9 01:46:03 2012)  (Fri Mar  9 05:16:56 2012)
      ps      4890      2643         6       100         0  (Mon Nov  1 00:40:56 2010)  (Fri Mar  9 05:16:55 2012)
      kg      4774      3597        11       289         0  (Fri Dec  9 01:42:34 2011)  (Fri Mar  9 05:16:54 2012)
      gl      4630      2388        78        17         0  (Thu Aug  4 01:49:07 2011)  (Fri Mar  9 05:16:54 2012)
      gd      4473      2452        50        80         0  (Fri Mar  9 01:43:18 2012)  (Fri Mar  9 05:16:54 2012)
      do      4222      2684        19        60         0  (Fri Mar  9 01:43:35 2012)  (Fri Mar  9 05:16:53 2012)
      sc      3957      3034        14       186         1  (Fri Mar  9 01:45:46 2012)  (Fri Mar  9 05:16:56 2012)
      tm      3788      2413         7        42         0  (Fri Oct 22 00:43:17 2010)  (Fri Mar  9 05:16:56 2012)
      sn      3562      1680         3       289         1  (Fri Dec  2 01:44:58 2011)  (Fri Mar  9 05:16:56 2012)
      io      3421      2321        49        98         0  (Fri Oct 22 00:38:53 2010)  (Fri Mar  9 05:16:54 2012)
      ug      3258      1303         4        75         0  (Mon Nov  9 02:12:10 2009)  (Fri Mar  9 05:16:56 2012)
      sh      3029      1949        44        85         2  (Fri Oct 22 00:42:38 2010)  (Fri Mar  9 05:16:56 2012)
      je      2730      1335        11        19         0  (Fri Jul 30 01:07:12 2010)  (Fri Mar  9 05:16:54 2012)
      tt      2374      1558         3        53         2  (Mon Oct  3 01:47:28 2011)  (Fri Mar  9 05:16:56 2012)
      bs      2300      1208         1        82         0  (Wed Apr  6 02:05:29 2011)  (Fri Mar  9 05:16:46 2012)
      gg      2287      1201         9         9         0  (Fri Jul 30 01:06:34 2010)  (Fri Mar  9 05:16:54 2012)
      mc      1978       655         1        31         0  (Fri Mar  9 01:44:23 2012)  (Fri Mar  9 05:16:55 2012)
      ci      1927      1410        11        57         0  (Fri Mar  9 01:42:41 2012)  (Fri Mar  9 05:16:47 2012)
      lc      1810       542         3        48         0  (Wed Oct 27 00:55:12 2010)  (Fri Mar  9 05:16:55 2012)
      jo      1559      1071         2        39         0  (Fri Nov 18 01:45:28 2011)  (Fri Mar  9 05:16:54 2012)
      gy      1464      1079         8        34         0  (Fri Mar  9 01:43:30 2012)  (Fri Mar  9 05:16:54 2012)
      pg      1449       547         1        30         0  (Fri Mar  9 01:45:01 2012)  (Fri Mar  9 05:16:55 2012)
      gp      1385       839         1        17         0  (Fri Mar  9 01:43:26 2012)  (Fri Mar  9 05:16:54 2012)
      mw      1268       589         3         0         0  (Fri Mar  9 01:44:41 2012)  (Fri Mar  9 05:16:55 2012)
      sl       956       652         4        30         0  (Fri Mar  9 01:45:43 2012)  (Fri Mar  9 05:16:56 2012)
      bi       909       574         1        10         1  (Fri Mar  9 01:42:28 2012)  (Fri Mar  9 05:16:46 2012)
      cv       822       607         2       183         8  (Fri Mar  9 01:43:24 2012)  (Fri Mar  9 05:16:47 2012)
      cu       809       243         5       653         8  (Mon Jan 24 01:48:44 2011)  (Fri Mar  9 05:16:47 2012)
      nf       738       472         1        12         0  (Thu Dec  9 01:43:21 2010)  (Fri Mar  9 05:16:55 2012)
      bb       735       449         1         2         0  (Fri Mar  9 01:42:19 2012)  (Fri Mar  9 05:16:45 2012)
      ki       283       171         2         0         0  (Wed Feb 15 01:43:02 2012)  (Fri Mar  9 05:16:54 2012)
      ao       282       129         1       154         0  (Fri Mar  9 01:42:39 2012)  (Fri Mar  9 05:16:45 2012)
      mo       281       154         0        43         2  (Fri Mar  9 01:44:29 2012)  (Fri Mar  9 05:16:55 2012)
      na       226        87         1         6         0  (Mon Aug 15 01:48:26 2011)  (Fri Mar  9 05:16:55 2012)
     int       165        96         2        69         1  (Fri Mar  9 01:43:46 2012)  (Fri Mar  9 05:16:54 2012)
      ne       140        55         1        72         0  (Sat Nov 12 01:49:38 2011)  (Fri Mar  9 05:16:55 2012)
      au        20         1         1        27         4  (Fri Apr  3 01:55:15 2009)  (Fri Mar  9 05:16:45 2012)
    arpa         9         0         0        12        12  (Fri Mar  9 00:30:05 2012)  (Fri Mar  9 05:16:45 2012)

   total 155342530 136362888   3245887   3694332      8305

Total registered domains with AAAA records: 3245887

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: Fri Mar 9 05:17:39 2012

Top 1000 Usenet Servers: 1000
Top 1000 Usenet Servers with a direct IPv4 address: 712
Top 1000 Usenet Servers with a direct IPv6 address: 116
Percentage of top 1000 Usenet Servers with direct addresses with IPv6 support: 16.29%

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: Fri Mar 9 01:00:38 PST 2012

IPv4 ASes: 40513

IPv6 ASes: 5243

ASes using only IPv4: 35373

ASes using only IPv6: 103

ASes using IPv4 and IPv6: 5140

ASes using IPv4 or IPv6: 40616

Percentage of ASes (IPv4 or IPv6) running IPv6: 12.9%

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: Fri Mar 9 03:39:24 PST 2012

IPv6 Prefixes: 7905

IPv6 rDNS Nameservers: 6021

IPv6 rDNS Nameservers with an IPv4 address: 5901

IPv6 rDNS Nameservers with an IPv6 address: 2783

IPv6 rDNS Nameservers reachable via IPv4 (ping or dns): 4970

IPv6 rDNS Nameservers reachable via IPv6 (ping or dns): 2372

IPv6 rDNS Nameservers reachable via IPv4 or IPv6: 5227

IPv6 rDNS Nameservers reachable via IPv4 and IPv6: 2115

Percentage reachable IPv6 rDNS Nameservers reachable via IPv6: 45.4%

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): 1304

IPv6 rDNS Nameservers where IPv4 and IPv6 are the same speed (within 1ms): 266

IPv6 rDNS Nameservers where IPv4 is faster than IPv6 (by more than 1ms): 545

IPv6 rDNS nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 1570

Percentage of IPv6 rDNS Nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 74.2%

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: Fri Mar 9 00:00:07 2012
Alexa Top 1 Million Domains Processed: Fri Mar 9 00:34:18 2012

Alexa 1M raw domains: 1000000
Alexa 1M raw with a direct IPv4 address: 941700
Alexa 1M raw with a direct IPv6 address: 11256

(top 100)
detik.com 2402:a000:0:1::100
google.cn 2001:4860:8005::a0
bitsnoop.com 2a02:29b8:1925::2
registro.br 2001:12ff:0:2::3
linode.com 2600:3c00::12
cyberciti.biz 2607:f0d0:1002:51::4
vg.no 2001:67c:21e0::16
softlayer.com 2607:f0d0:1000:11:1::4
anitube.jp 2607:f0d0:3001:a4::2
agame.com 2001:4c08:2005::6
ucla.edu 2607:f010:3fe:101:0:ff:fe01:32
plurk.com 2607:f128:47::1:1
teamliquid.net 2001:48c8:1:400::1:1
boards.ie 2a01:258:f000:3::108
centurylink.com 2001:428:b21:1::20
gtmetrix.com 2607:fcc0:2:1:204:187:12:90
tribune.com 2002:a3c0:1712::a3c0:1712
interesting.cc 2406:da00:ff00::1715:b917
inc.gs 2605:ac00::94
biglobe.ne.jp 2001:260:401:270::43
xkcd.com 2001:48c8:1:d:0:23:5482:d026
gamesgames.com 2001:4c08:2005::1
articlesnatch.com 2400:cb00:2048:1::8d65:7e2b
nifty.com 2001:258:8602:351:202:248:175:249
xbox.com 2a01:111:f009::3b03
elakiri.com 2400:cb00:2048:1::8d65:7e59
gry.pl 2001:4c08:2005::3
allkpop.com 2607:f0d0:1004:93:0:101:b4b0:85
frontier.com 2001:1960:21:1::92
heise.de 2a02:2e0:3fe:100::8
brainyquote.com 2400:cb00:2048:1::c71b:86a7
simplyrecipes.com 2001:470:1:1e::4047:848b
iana.org 2001:500:88:200::8
novinky.cz 2a02:598:1::7
europa.eu 2a01:e0b:1:143:62eb:69ff:fe8f:16e6
t-online.de 2003:2:2:40:62:153:159:92
va.gov 2610:d8:4000:28::28:221
sapo.pt 2001:8a0:2104:ff:213:13:146:140
freebsd.org 2001:4f8:fff6::28
elmundo.es 2001:67c:2294:1000::f199
home.pl 2a02:25a8::d455:6001
beyondtherack.com 2002::ae81:c5ab
korben.info 2400:cb00:2048:1::8d65:7dd3
raspberrypi.org 2a00:1098:0:80:1000:13:0:2
strato.de 2a01:238:20a:202:6660:0:198:33
fark.com 2604:e700:fa:64:fa12:1c:bee:12
tokyotosho.info 2001:67c:2a0:5:0:b00b:babe:cafe
folha.uol.com.br 2804:49c:319:430::173
super.cz 2a02:598:1::57
seriesyonkis.com 2a00:1d70:c01c::111:136
noticias.uol.com.br 2804:49c:319:430::319
iweb.com 2607:f748:1200:e3::1
geenstijl.nl 2a00:d00:ff:219:81:173:64:50
origo.hu 2001:4c48:1:d5::2:1b
uol.com.br 2804:49c:319:430::100
esporte.uol.com.br 2804:49c:319:430::103
internic.net 2001:500:88:200::9
torrentfreak.com 2607:f0d0:3002:23::2
iltalehti.fi 2001:67c:224:81::2
filezilla-project.org 2a01:4f8:61:61a3::2
icann.org 2001:500:88:200::7
tamu.edu 2606:aa00:3:202::6
eonet.jp 2001:ce8:0:604:1::1
softgozar.com 2001:1af8:4300:a003:512:b6a1:2c27:7bb3
acesso.uol.com.br 2804:49c:319:430::275
jeu.fr 2001:4c08:2005::2
charter.com 2607:f428:3:1:80:80:80:1
ncsu.edu 2001:470:e2ba::10
unc.edu 2610:28:3090:3002::11
portail.free.fr 2a01:e0c:1:1599::1
moddb.com 2402:ee00:de00:de00::10
podnapisi.net 2a02:840:1:2:111::1
fedoraproject.org 2610:28:3090:3001:dead:beef:cafe:fed3
iwiw.hu 2001:4c48:2:4d:21c:c4ff:fefa:7d50
blogosfera.uol.com.br 2804:49c:319:430::331
timewarnercable.com 2001:1998:2002:402::200
mail.uol.com.br 2804:49c:319:430::354
thisav.com 2400:cb00:2048:1::c71b:8780
clickjogos.uol.com.br 2804:49c:319:430::318
batepapo.uol.com.br 2804:49c:319:430::170
sport.cz 2a02:598:2::63
bol.uol.com.br 2804:49c:319:430::326
python.org 2001:888:2000:d::a2
zbozi.cz 2a02:598:2::29
anitube.co 2607:f0d0:3001:a4::2
he.net 2001:470:0:76::2
df.eu 2a00:1158:0:100::15
zimbra.free.fr 2a01:e0c:1:1599::e
maketecheasier.com 2400:cb00:2048:1::adf5:3c71
kindgirls.com 2a00:1d70:c01c::108:32
designrfix.com 2400:cb00:2048:1::adf5:3c77
search.ch 2001:1702:3::3:90
timeweb.ru 2a03:6f00:1::5c35:71de
arin.net 2001:500:4:13::80
just-ping.com 2001:470:1f04:1237::2
idg.se 2a01:2b0:3029:100::10
vonage.com 2620:0:1800:100::1
xs4all.nl 2001:888:0:1::888
nihonomaru.com 2400:cb00:2048:1::adf5:3c71
broadbandforum.in 2400:cb00:2048:1::adf5:3c63

www. + Alexa 1M domains: 1000000
www. + Alexa 1M with a direct IPv4 address: 972613
www. + Alexa 1M with a direct IPv6 address: 12285

(top 100)
www.facebook.com 2620:0:1c18:0:face:b00c:0:2
www.detik.com 2402:a000:0:1::100
www.google.cn 2001:4860:8005::a0
www.brainyquote.com 2400:cb00:2048:1::c71b:86a7
www.bitsnoop.com 2a02:29b8:1925::2
www.doodle.com 2a02:d58:2001::72
www.techtudo.com.br 2804:294:4000:8000::5
www.infowars.com 2001:4870:6003:3::20
www.registro.br 2001:12ff:0:2::3
www.cyberciti.biz 2607:f0d0:1002:51::4
www.linode.com 2600:3c00::12
www.anitube.jp 2607:f0d0:3001:a4::2
www.kindgirls.com 2a00:1d70:c01c::108:32
www.podnapisi.net 2a02:840:1:2:111::1
www.vg.no 2001:67c:21e0::16
www.sprint.com 2600::aaaa
www.torrentz.eu 2a02:29b8:1602::2
www.dafont.com 2001:41d0:2:8753::1
www.teamliquid.net 2001:48c8:1:400::1:1
www.att.net 2001:1890:1c01:2::40
www.boards.ie 2a01:258:f000:3::108
www.centurylink.com 2001:428:b21:1::20
www.zimbra.free.fr 2a01:e0c:1:1599::e
www.gtmetrix.com 2607:fcc0:2:1:204:187:12:90
www.harvard.edu 2607:fb60:100:210::e6
www.plurk.com 2607:f128:47::1:1
www.avira.com 2a01:138:a001:202:babe::3
www.xkcd.com 2001:48c8:1:d:0:23:5482:d026
www.simplyrecipes.com 2001:470:1:1e::4047:848b
www.sakura.ne.jp 2001:e40:100:407::d2e0:a864
www.nifty.com 2001:258:8602:351:202:248:175:20d
www.plala.or.jp 2400:7800:0:3008::5
www.fark.com 2604:e700:fa:64:fa12:1c:bee:12
www.timewarnercable.com 2001:1998:2002:402::200
www.debian.org 2607:f8f0:610:4000:211:25ff:fec4:5b28
www.nyu.edu 2607:f600:8002:1::7
www.ucla.edu 2607:f010:3fe:201:0:ff:fe01:32
www.elakiri.com 2400:cb00:2048:1::8d65:7d59
www.iweb.com 2607:f748:1200:e3::1
www.torrentfreak.com 2607:f0d0:3002:23::2
www.hinet.net 2001:b000:180:3::7
www.allkpop.com 2607:f0d0:1004:93:0:101:b4b0:85
www.rackspace.com 2001:4802:821:c011::f5:147
www.kddi.com 2001:268:fa01:b03::1
www.tvrage.com 2001:14a0:100:12::5
www.seriespepito.com 2a00:1d70:c01c::110:91
www.free.fr 2a01:e0c:1:1599::1
www.frontier.com 2001:1960:21:1::92
www.nta.go.jp 2001:c80:a001:1::cad9:2cd0
www.zenfolio.com 2001:470:4d:6::1
www.doctissimo.fr 2a01:7b0:20:6::14
www.ubc.ca 2607:f8f0:670:2::6
www.marca.com 2001:67c:2294:1000::f199
www.europa.eu 2a00:2000:4090:6::7
www.va.gov 2610:d8:4000:28::28:221
www.cnnic.cn 2001:dc7:1::daf1:6129
www.heise.de 2a02:2e0:3fe:100::7
www.fedoraproject.org 2610:28:3090:3001:dead:beef:cafe:fed4
www.iana.org 2620:0:2d0:200::8
www.freebsd.org 2001:4f8:fff6::22
www.raspberrypi.org 2a00:1098:0:80:1000:13:0:2
www.thisav.com 2400:cb00:2048:1::c71b:8780
www.novinky.cz 2a02:598:2::7
www.uol.com.br 2804:49c:319:430::100
www.informationweek.com 2620:103::192:155:48:18
www.tokyotosho.info 2001:67c:2a0:5:0:b00b:babe:cafe
www.strato.de 2a01:238:20a:202:6660:0:198:33
www.szn.cz 2a02:598:1::55
www.korben.info 2400:cb00:2048:1::8d65:7ed3
www.super.cz 2a02:598:2::57
www.census.gov 2610:20:2110:103::1:218
www.cpan.org 2620:101:d000:8::140:1
www.exacttarget.com 2620:102:7001:1f01:91::111
www.sapo.pt 2001:8a0:2104:ff:213:13:146:140
www.he.net 2001:470:0:76::2
www.lowyat.net 2401:3400:2000:1::17
www.folha.uol.com.br 2804:49c:319:430::173
www.softlayer.com 2607:f0d0:1000:11:1::1
www.ed.gov 2604:b300:ad02:1::4a54:db99
www.streamtheworld.com 2002:d050:37c8::1
www.terra.com.br 2001:12c0:0:aaaa:200:154:56:80
www.odn.ne.jp 2001:278:0:1106::4
www.navy.mil 2600:809:600::3f50:412
www.eonet.jp 2001:ce8:0:604:1::1
www.ocn.ne.jp 2001:380:516:4900::1:1
www.italiansubs.net 2001:41d0:2:8673::1
www.noticias.uol.com.br 2804:49c:319:430::326
www.iltalehti.fi 2001:67c:224:81::2
www.af.mil 2600:809:600::3f50:411
www.origo.hu 2001:4c48:1:d5::1:1b
www.jobstreet.com 2404:4800:0:7::101
www.usda.gov 2600:809:600::3f50:409
www.televisao.uol.com.br 2804:49c:319:430::326
www.performinsider.com 2001:4801:7901:0:7114:7e7:0:1
www.portail.free.fr 2a01:e0c:1:1599::1
www.unc.edu 2610:28:3090:3002::11
www.ncsu.edu 2001:470:e2ba::10
www.moddb.com 2402:ee00:de00:de00::10
www.powned.tv 2a00:d00:ff:131:94:228:131:131
www.python.org 2001:888:2000:d::a2

ipv6. + Alexa 1M domains: 1000000
ipv6. + Alexa 1M with a direct IPv4 address: 232095
ipv6. + Alexa 1M with a direct IPv6 address: 7550

(top 100)
ipv6.2ch.net 2407:3000:6:175::12
ipv6.flipkart.com 2001:df0:23e:101::1011
ipv6.google.com 2001:4860:4001:803::1010
ipv6.google.co.jp 2001:4860:4001:800::1011
ipv6.google.com.hk 2001:4860:8005::68
ipv6.zynga.com 2620:102:8000:200::127
ipv6.netflix.com 2620:0:ef0:13::20
ipv6.google.cn 2001:4860:4001:801::1013
ipv6.scribd.com 2607:f0d0:1004:2::4
ipv6.nasa.gov 2600:1406:1::addf:e821
ipv6.sp.gov.br 2001:470:4:9aa::2
ipv6.bitsnoop.com 2a02:29b8:1925::2
ipv6.comcast.com 2001:558:1002:5:68:87:64:59
ipv6.berkeley.edu 2607:f140:ffff:ffff::80
ipv6.cnn.com 2620:100:e000::8001
ipv6.bloomberg.com 2600:1402:1::b854:fc08
ipv6.aol.com 2001:4b0:1668:2202:2::1
ipv6.proboards.com 2607:f0d0:1005:b::3
ipv6.portail.free.fr 2a01:e0c:1:1599::1
ipv6.terra.com.br 2001:12c0:0:aaaa:200:154:56:96
ipv6.xkcd.com 2001:48c8:1:d:0:23:5482:d026
ipv6.t-mobile.com 2607:fb90:beef:c137::3
ipv6.sprint.com 2600::ffff
ipv6.miniclip.com 2a02:5f8:1:46d::120
ipv6.llnw.com 2607:f4e8:12:fffe:230:48ff:fe96:f99e
ipv6.usda.gov 2600:809:600::3f50:411
ipv6.w3.org 2001:200:1c0:3601::80:2
ipv6.kaskus.us 2404:8000:10:1::2
ipv6.cox.net 2001:578:0:6e2::80
ipv6.meebo.com 2620:84:0:aaaa::2
ipv6.teamliquid.net 2001:48c8:1:400::2
ipv6.boards.ie 2a01:258:f000:3::108
ipv6.htcmania.com 2a00:1d70:c01c::64:244
ipv6.edgesuite.net 2600:809:600::3f50:413
ipv6.cocolog-nifty.com 2001:258:8602:351:202:248:175:146
ipv6.bbc.co.uk 2001:4b10:bbc::1
ipv6.cyanogenmod.com 2400:cb00:2048:1::adf5:3c72
ipv6.vt.edu 2001:468:c80:210f:0:1c6:1a85:8564
ipv6.babosas.com 2a00:1d70:c01c::108:231
ipv6.tvrage.com 2001:14a0:100:12::5
ipv6.wisc.edu 2607:f388:2:6000:ee:d2:e6:c6
ipv6.comcast.net 2001:590:1:202::451f:1190
ipv6.seznam.cz 2a02:598:2::3
ipv6.rogers.com 2607:f798:10:114:0:672:3121:171
ipv6.iweb.com 2607:f748:1200:e3::1
ipv6.huawei.com 2600:809:600::3f50:413
ipv6.nu.nl 2a00:18a0:d4::4
ipv6.baidu.com 2400:da00::dbf:0:100
ipv6.tomshardware.com 2a01:8200:1001::80
ipv6.state.gov 2600:1402:1::b854:fc52
ipv6.blackberry.com 2607:ffc0:c:1:208:65:75:22
ipv6.fastmail.fm 2610:1c0:0:1::426f:438
ipv6.upenn.edu 2600:1402:1::b854:fc4a
ipv6.va.gov 2001:470:4f:f::ff
ipv6.ovh.com 2001:41d0:1:10::d5ba:2122
ipv6.gazeta.pl 2a02:bd8:1::50fc:91
ipv6.dhs.gov 2600:1402:1::b854:fc1b
ipv6.bt.com 2a00:1a48:10a1::538a:9648
ipv6.plurk.com 2607:f128:47::1:1
ipv6.novinky.cz 2a02:598:2::7
ipv6.ssa.gov 2001:1930:c00::19
ipv6.ig.com.br 2804:13c:0:aaaa:187:31:64:34
ipv6.cmu.edu 2607:fb28:0:5::3
ipv6.onet.pl 2a02:c10:2190:4::aaaa
ipv6.yo.fi fe80::200:ff:fe00:4
ipv6.he.net 2001:470:0:64::2
ipv6.doodle.com 2a02:d58:2001::71
ipv6.tokyotosho.info 2001:67c:2a0:5:0:b00b:babe:cafe
ipv6.super.cz 2a02:598:2::57
ipv6.21cn.com 2042:8800:1::3
ipv6.yandex.ru 2a02:6b8:0:261::1
ipv6.blizzard.com 2001:1890:e000:c01:dad3:85ff:fed9:ce24
ipv6.akamai.com 2600:809:600::3f50:408
ipv6.home.pl 2a02:25a8::d455:6001
ipv6.nnm-club.ru 2001:470:1f0a:1505::2
ipv6.yandex.ua 2a02:6b8:0:261::1
ipv6.denic.de 2001:608:6::1
ipv6.cplusplus.com 2607:f0d0:1301:f::c0de:c
ipv6.italiansubs.net 2001:41d0:2:8673::1
ipv6.sony.co.jp 2001:cf8:0:6b::190
ipv6.dreamhosters.com 2001:49f0:a009:3::b00b:f
ipv6.simplecd.org fe80::7271:bcff:fe8e:b7e3
ipv6.nic.ru 2a02:2090:e800:8080::8
ipv6.wykop.pl 2a02:950:5:100::cafe
ipv6.liquidweb.com 2607:fad0:32:a04::6
ipv6.flightaware.com 2600:c13:1002:4::213
ipv6.tamu.edu 2606:aa00:3:202::8
ipv6.cntv.cn 2001:da8:e64:3b40:7417::
ipv6.uchicago.edu 2001:470:1f10:22f::2
ipv6.nazwa.pl 2a01:6100::5580:8024
ipv6.peliculas21.com 2a00:1d70:c01c::229:151
ipv6.wmtransfer.com 2001:1af8:4400:a01e:221:9bff:fefb:226e
ipv6.yandex.by 2a02:6b8:0:261::1
ipv6.nrk.no 2a00:f980:1::15
ipv6.unc.edu 2610:28:3090:3002::16
ipv6.woxikon.de 2a00:1158:0:402:d886::1
ipv6.moddb.com 2402:ee00:de00:de00::10
ipv6.cosmiq.de 2001:868:100:1c0::200
ipv6.freemail.hu 2001:4c48:2:f::100
ipv6.blogosfera.uol.com.br 2804:49c:319:430::331