cottonon.com                   has IPv4  has IPv6  ::  (time=0.000229)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000123)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000199)
pega.com                       has IPv4  has IPv6  ::  (time=0.000132)
univ-msila.dz                  has IPv4  has IPv6  ::1  (time=0.000270)
zgsr.gov.cn                    has IPv4  has IPv6  ::1  (time=0.000107)