cugb.edu.cn                    has IPv4  has IPv6  ::1  (time=0.000127)
edu22.info                     has IPv4  has IPv6  ::1  (time=0.000109)
hofstra.edu                    has IPv4  has IPv6  ::  (time=0.000099)
ia.ac.cn                       has IPv4  has IPv6  ::1  (time=0.000095)
www.uc.cn                      has IPv4  has IPv6  ::  (time=0.000169)
www.ucweb.com                  has IPv4  has IPv6  ::  (time=0.052047)