A few people have sent private replies commenting on the email/IPv6 deployment stats I posted. I thought I would also share some nameserver statistics to give an idea of what I see (at least at puck.nether.net) for IPv6 vs IPv4 queries. I won't break down the numbers for everyone, just posting the raw values from a bind stats dump. The stats are from ~June 21st to now. [View: _bind] ++ Name Server Statistics ++ 359127071 IPv4 requests received 6024171 IPv6 requests received ++ Resolver Statistics ++ [Common] 12966 mismatch responses received [View: default] 9028037 IPv4 queries sent 733851 IPv6 queries sent 8431489 IPv4 responses received 705457 IPv6 responses received ... 800617 IPv4 NS address fetches 807581 IPv6 NS address fetches 16773 IPv4 NS address fetch failed 759240 IPv6 NS address fetch failed [View: _bind (Cache: _bind)] ++ Socket I/O Statistics ++ 9047706 UDP/IPv4 sockets opened 741832 UDP/IPv6 sockets opened 73995 TCP/IPv4 sockets opened 1362 TCP/IPv6 sockets opened 9047703 UDP/IPv4 sockets closed 741831 UDP/IPv6 sockets closed 91701 TCP/IPv4 sockets closed 1569 TCP/IPv6 sockets closed 1421 UDP/IPv4 socket bind failures 10 UDP/IPv6 socket bind failures 10718 TCP/IPv4 socket connect failures 632 TCP/IPv6 socket connect failures 9025101 UDP/IPv4 connections established 733586 UDP/IPv6 connections established 63200 TCP/IPv4 connections established 729 TCP/IPv6 connections established 17709 TCP/IPv4 connections accepted 208 TCP/IPv6 connections accepted 29998 UDP/IPv4 recv errors 6842 UDP/IPv6 recv errors 1055 TCP/IPv4 recv errors