cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000102)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.001116)
univ-tlemcen.dz                has IPv4  has IPv6  ::1  (time=0.000130)
zimbra.com                     has IPv4  has IPv6  ::  (time=0.000119)