cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000109)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000084)
nilevalley.edu.sd              has IPv4  has IPv6  ::1  (time=0.000083)
univ-tlemcen.dz                has IPv4  has IPv6  ::1  (time=0.000086)