Google China recently added AAAA records to it’s domains:
# host www.google.cn www.google.cn has address 18.104.22.168 www.google.cn has IPv6 address 2a00:1450:4001:c01::a0
Google China does not offer search results through google.cn anymore since March 2010, redirecting their users to google.com.hk, which does not have AAAA records enabled.
Fortunately maps.google.cn still is available, generating lots of IPv6 traffic:
# host maps.google.cn maps.google.cn is an alias for ditu.google.cn. ditu.google.cn has address 22.214.171.124 ditu.google.cn has IPv6 address 2a00:1450:4001:c01::a0
This gives hope for this year’s World IPv6 Launch Day, June 6th, 2012. 🙂