cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000090)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000180)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000144)
hofstra.edu                    has IPv4  has IPv6  ::  (time=0.000127)
www.msbauthentication.com      has IPv4  has IPv6  ::1  (time=0.000184)