cottonon.com                   has IPv4  has IPv6  ::  (time=0.000275)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000129)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000113)
univ-tlemcen.dz                has IPv4  has IPv6  ::1  (time=0.000255)