Of the .AU zones in the Alexa top 1M domains there 672 IPv6 DNS servers for them and 6824 IPv4 servers.
Mark In message <cahpuvduvapkudlzkszauebe+zomejtnmu_p6k0sq03fsnp9...@mail.gmail.com> , Shumon Huque writes: > > On Wed, Sep 24, 2014 at 9:27 PM, Davey Song <[email protected]> wrote: > > > Hi everyone, Iâm recently doing a little survey on the penetration of > IPv6 > > in DNS system and it's latent problems. > > > > I find that top websites like Google, Wikipedia,Yahoo already support > IPv6 > > access, but its name servers are still IPv4-only. I'm wondering why? is > > there any operation consideration or risk in their IPv6 deployment? > > > > I've done brief surveys of a small group of well known tech companies (and > a few other groups) and a little over half of those have at least one IPv6 > reachable authoritative nameserver (28 of 52 or ~ 54%): > > http://www.huque.com/app/dnsstat/category/techcom/ > > Yes, the new gTLDs do require IPv6, and my survey of that group seems to > confirm that this is the case in practice: > > http://www.huque.com/app/dnsstat/category/new_gtld/ > > You might be interested in NIST's larger measurement of over 2000 US > companies also. They show 77 of 2150 IPv6 reachable DNS domains (only > 3.6%). > > http://fedv6-deployment.antd.nist.gov/cgi-bin/generate-com > > --Shumon > -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: [email protected]
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