cugb.edu.cn has IPv4 has IPv6 ::1 (time=0.000093) ecust.edu.cn has IPv4 has IPv6 ::1 (time=0.000106) edu22.info has IPv4 has IPv6 ::1 (time=0.000105) ia.ac.cn has IPv4 has IPv6 ::1 (time=0.000099) www.uc.cn has IPv4 has IPv6 :: (time=0.000095) www.ucweb.com has IPv4 has IPv6 :: (time=0.000088)