cottonon.com                   has IPv4  has IPv6  ::  (time=0.000124)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000115)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000098)
www.oa.com                     has IPv4  has IPv6  ::1  (time=0.000092)
pega.com                       has IPv4  has IPv6  ::  (time=0.000127)
zgsr.gov.cn                    has IPv4  has IPv6  ::1  (time=0.000125)