ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000137)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000089)
pega.com                       has IPv4  has IPv6  ::  (time=0.000119)
univ-msila.dz                  has IPv4  has IPv6  ::1  (time=0.000153)