cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000083)
ecust.edu.cn                   has IPv4  has IPv6  ::1  (time=0.000063)
pega.com                       has IPv4  has IPv6  ::  (time=0.000064)
www.uc.cn                      has IPv4  has IPv6  ::  (time=0.000096)
www.ucweb.com                  has IPv4  has IPv6  ::  (time=0.000089)
zimbra.com                     has IPv4  has IPv6  ::  (time=0.000099)