cugb.edu.cn has IPv4 has IPv6 ::1 (time=0.000100) ecust.edu.cn has IPv4 has IPv6 ::1 (time=0.000146) edu22.info has IPv4 has IPv6 ::1 (time=0.000339) ia.ac.cn has IPv4 has IPv6 ::1 (time=0.000124) www.uc.cn has IPv4 has IPv6 :: (time=0.000104) www.ucweb.com has IPv4 has IPv6 :: (time=0.000103)