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.
Root Zone Downloaded: Fri Nov 6 01:00:03 2009
Root Zone Processed: Fri Nov 6 14:56:29 2009
Top Level Domains (TLDs): 280
TLDs with IPv6 nameservers: 224
Percentage of TLDs with IPv6 nameservers: 80.0%
ac ad ae aero af ag al am an ao aq ar arpa as asia at au az ba be bf bg bi biz bj bm bn br bs bt bv bw by bz ca cat cd cf cg ch ci cl cm cn com cr cu cv cy cz de dk do dz edu ee eg er es et eu fi fj fm fr ga gb ge gg gh gi gl gn gp gr gs gt gu gw gy hk hn hr ht hu id ie il in info int io ir is it je jm jo jp ke kg kh ki km kn kr 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 ng nl no np nr nz om org pe pg ph pl pm pn pr ps pt py re ro rs ru rw sa sb sc sd se sg sh si sj sk sm sn so sv sy sz tc tel tf th tj tm tn to tp tr travel tt tw tz ua ug uk us uy va vc ve vg vi vn wf xn--0zwm56d xn--11b5bs3a9aj6g xn--80akhbyknj4f xn--9t4b11yi5a xn--deba0ad xn--g6w251d xn--hgbk6aj7f53bba xn--hlcj6aya9esc7a xn--jxalpdlp xn--kgbechtv xn--zckzah yt yu za zm zw
TLDs with nameservers with IPv6 glue in the root zone: 180
Percentage of TLDs that have nameservers with IPv6 glue in the root zone: 64.3%
ac ad ae aero af ag al am an ao aq ar arpa as asia at au az be bg bi biz bm br bt bw bz ca cat cd cf cg ch ci cl cn com cu cv cy cz de dk do dz edu ee eg es et eu fi fj fm fr ga gb ge gg gh gi gn gr gt gw gy hk hn ht hu id ie il in info int io is it je jm jp ke kg kh ki km kn kr la lb lc li lk lr ls lt lu lv ly md me mk ml mn mo mobi mr ms mt museum mw mx my mz na net ng nl no np nr nz org ph pl pm pn ps pt py re ro rs rw sa sc se sg sh si sk sn so sz tel tf th tj tm tn tp travel tw tz ua ug uk us uy va vc ve vn wf xn--0zwm56d xn--11b5bs3a9aj6g xn--80akhbyknj4f xn--9t4b11yi5a xn--deba0ad xn--g6w251d xn--hgbk6aj7f53bba xn--hlcj6aya9esc7a xn--jxalpdlp xn--kgbechtv xn--zckzah yt yu za zm
TLD domains A AAAA A-glue AAAA-glue downloaded processed
com 83049020 36954064 1083585 1653499 406 (Fri Nov 6 01:47:31 2009) (Fri Nov 6 08:32:24 2009)
de 12930722 10678904 6693 371507 101 (Mon Oct 19 02:02:24 2009) (Fri Nov 6 11:48:59 2009)
net 12520784 10431620 132687 332661 596 (Fri Nov 6 02:11:18 2009) (Fri Nov 6 09:05:20 2009)
org 7850844 6708902 80690 216569 312 (Fri Nov 6 02:11:35 2009) (Fri Nov 6 09:36:44 2009)
info 5342910 4519553 72624 133683 161 (Fri Nov 6 02:11:47 2009) (Fri Nov 6 09:45:07 2009)
biz 2012304 1540727 21174 20904 0 (Fri Nov 6 02:12:58 2009) (Fri Nov 6 10:04:07 2009)
us 1591938 1236524 28264 14644 0 (Fri Nov 6 02:12:23 2009) (Fri Nov 6 10:11:53 2009)
ca 1280487 1104002 2999 15580 8 (Fri Nov 6 02:15:16 2009) (Fri Nov 6 11:31:13 2009)
mobi 952822 731583 33588 4351 26 (Fri Nov 6 02:11:56 2009) (Fri Nov 6 09:57:42 2009)
no 422532 303791 156 1383 3 (Fri Apr 3 02:10:44 2009) (Fri Nov 6 13:23:35 2009)
name 255079 185349 3788 4384 0 (Fri Nov 6 02:13:10 2009) (Fri Nov 6 10:24:06 2009)
asia 213967 148228 3373 1587 25 (Fri Nov 6 02:13:04 2009) (Fri Nov 6 10:18:01 2009)
sk 191293 120033 10105 3693 0 (Fri Nov 6 02:17:58 2009) (Fri Nov 6 13:54:01 2009)
kz 37319 25311 5 53177 0 (Fri Nov 6 02:17:20 2009) (Fri Nov 6 12:56:11 2009)
aero 31434 4491 8 281 0 (Fri Nov 6 02:11:50 2009) (Fri Nov 6 09:51:25 2009)
ma 30826 10625 5 33367 0 (Fri Nov 6 02:17:50 2009) (Fri Nov 6 13:11:22 2009)
am 26394 7758 47 550 4 (Mon Jul 6 01:58:16 2009) (Fri Nov 6 10:45:15 2009)
tj 17999 4131 1 130 0 (Fri Nov 6 02:18:46 2009) (Fri Nov 6 14:26:07 2009)
ac 14929 9090 2 231 0 (Fri Nov 6 02:13:11 2009) (Fri Nov 6 10:30:09 2009)
ag 13572 9745 51 266 0 (Fri Nov 6 02:13:12 2009) (Fri Nov 6 10:36:10 2009)
ge 13435 11366 9 214 1 (Fri Nov 6 02:14:58 2009) (Fri Nov 6 11:59:49 2009)
to 13144 10359 32 1245 0 (Fri Nov 6 02:18:10 2009) (Fri Nov 6 14:36:45 2009)
tc 9685 7584 99 489 0 (Fri Nov 6 02:18:06 2009) (Fri Nov 6 14:20:06 2009)
ba 8809 7291 2 6857 0 (Fri Nov 6 02:14:28 2009) (Fri Nov 6 11:00:26 2009)
pe 8462 4966 1 151 0 (Fri Nov 6 02:17:20 2009) (Fri Nov 6 13:29:36 2009)
vg 7984 5972 54 330 0 (Fri Nov 6 02:18:39 2009) (Fri Nov 6 14:50:27 2009)
gt 7584 5504 4 463 2 (Fri Nov 6 02:15:19 2009) (Fri Nov 6 12:21:10 2009)
lk 6234 3793 1 1749 0 (Fri Nov 6 02:16:06 2009) (Fri Nov 6 13:05:17 2009)
sc 5446 4267 5 185 0 (Tue Aug 25 02:13:24 2009) (Fri Nov 6 13:44:52 2009)
jm 4790 2012 3 4728 0 (Fri Nov 6 02:16:05 2009) (Fri Nov 6 12:38:00 2009)
gov 4491 3521 4 837 0 (Fri Nov 6 02:15:14 2009) (Fri Nov 6 12:12:01 2009)
bd 4047 2338 1 6073 0 (Fri Nov 6 02:13:27 2009) (Fri Nov 6 11:06:28 2009)
gl 3685 1691 3 14 0 (Fri Nov 6 02:15:10 2009) (Fri Nov 6 12:05:51 2009)
ug 3263 2068 1 77 0 (Fri Nov 6 02:19:26 2009) (Fri Nov 6 14:44:27 2009)
kg 3229 2428 2 228 0 (Fri Nov 6 02:15:39 2009) (Fri Nov 6 12:47:05 2009)
sh 2833 2216 9 94 3 (Fri Nov 6 02:17:46 2009) (Fri Nov 6 13:47:57 2009)
io 2691 2154 3 80 0 (Fri Nov 6 02:15:30 2009) (Fri Nov 6 12:31:58 2009)
gd 2680 1383 1 199 0 (Fri Nov 6 02:15:03 2009) (Fri Nov 6 11:53:46 2009)
sn 2338 1036 5 234 1 (Fri Nov 6 02:17:54 2009) (Fri Nov 6 14:00:16 2009)
lc 1610 439 1 38 0 (Fri Nov 6 02:16:04 2009) (Fri Nov 6 13:00:42 2009)
mw 1370 560 3 0 0 (Fri Nov 6 02:16:51 2009) (Fri Nov 6 13:14:31 2009)
sl 888 542 1 14 0 (Fri Nov 6 02:17:50 2009) (Fri Nov 6 13:57:09 2009)
cu 869 242 0 611 9 (Fri Nov 6 02:14:28 2009) (Fri Nov 6 11:37:28 2009)
nf 715 510 3 12 0 (Fri Nov 6 02:17:05 2009) (Fri Nov 6 13:17:32 2009)
cv 532 322 1 60 0 (Fri Nov 6 02:14:27 2009) (Fri Nov 6 11:40:29 2009)
ao 217 106 1 118 0 (Fri Nov 6 02:13:13 2009) (Fri Nov 6 10:51:23 2009)
int 148 83 1 63 0 (Fri Nov 6 02:15:31 2009) (Fri Nov 6 12:27:24 2009)
tn 52 5 0 632 2 (Fri Nov 6 02:18:36 2009) (Fri Nov 6 14:30:45 2009)
au 20 1 0 27 4 (Fri Apr 3 01:55:15 2009) (Fri Nov 6 10:51:23 2009)
total 128908426 74819190 1480095 2888269 1664
Total registered domains with AAAA records: 1480095
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 Downloaded: Thu Nov 5 19:30:34 2009
Top 1000 Processed: Fri Nov 6 15:02:35 2009
Top 1000 Usenet Servers: 1000
Top 1000 Usenet Servers with a direct IPv4 address: 733
Top 1000 Usenet Servers with a direct IPv6 address: 76
Percentage of top 1000 Usenet Servers with direct addresses with IPv6 support: 10.37%
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: Sat Nov 7 00:11:18 PST 2009
ASes using IPv4 and IPv6: 1701
ASes using IPv4 or IPv6: 33008
Percentage of ASes (IPv4 or IPv6) running IPv6: 5.3%
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: Sat Nov 7 00:53:30 PST 2009
IPv6 rDNS Nameservers with an IPv4 address: 2197
IPv6 rDNS Nameservers with an IPv6 address: 855
IPv6 rDNS Nameservers reachable via IPv4 (ping or dns): 1895
IPv6 rDNS Nameservers reachable via IPv6 (ping or dns): 713
IPv6 rDNS Nameservers reachable via IPv4 or IPv6: 1970
IPv6 rDNS Nameservers reachable via IPv4 and IPv6: 638
Percentage reachable IPv6 rDNS Nameservers reachable via IPv6: 36.2%
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): 358
IPv6 rDNS Nameservers where IPv4 and IPv6 are the same speed (within 1ms): 82
IPv6 rDNS Nameservers where IPv4 is faster than IPv6 (by more than 1ms): 198
IPv6 rDNS nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 440
Percentage of IPv6 rDNS Nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 69.0%
A very quick way to measure IPv6 deployment for websites is just to check for a AAAA record in DNS.
Domains Last Polled: Sat Nov 7 00:12:10 PST 2009
The Alexa Top 500 lists the most popular sites on the web.
Alexa Top 500 Last Parsed: Sat Nov 7 00:11:30 PST 2009
Alexa Top 500 websites domains: 500
Alexa Top 500 websites listed incorrectly: 9
Alexa Top 500 websites with an IPv4 or IPv6 address: 491
Alexa Top 500 websites with an IPv6 address: 0
Percentage of Alexa Top 500 websites using IPv6: 0.0%