cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000101)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000098)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000110)
univ-tlemcen.dz                has IPv4  has IPv6  ::1  (time=0.000122)
zimbra.com                     has IPv4  has IPv6  ::  (time=0.000099)