ecust.edu.cn has IPv4 has IPv6 ::1 (time=0.000087) edu22.info has IPv4 has IPv6 ::1 (time=0.000089) www.msbauthentication.com has IPv4 has IPv6 ::1 (time=0.000090) www.uc.cn has IPv4 has IPv6 :: (time=0.000104) www.ucweb.com has IPv4 has IPv6 :: (time=0.000140)