cugb.edu.cn has IPv4 has IPv6 ::1 (time=0.000085) edu22.info has IPv4 has IPv6 ::1 (time=0.000093) univ-tlemcen.dz has IPv4 has IPv6 ::1 (time=0.000115) zimbra.com has IPv4 has IPv6 :: (time=0.000079)