ecust.edu.cn has IPv4 has IPv6 ::1 (time=0.000098) edu22.info has IPv4 has IPv6 ::1 (time=0.000085) hofstra.edu has IPv4 has IPv6 :: (time=0.000136) www.uc.cn has IPv4 has IPv6 :: (time=0.000083) www.ucweb.com has IPv4 has IPv6 :: (time=0.000089)