here.com                       has IPv4  has IPv6  ::  (time=0.000083)
qualtrics.com                  has IPv4  has IPv6  ::  (time=0.000070)
www.uc.cn                      has IPv4  has IPv6  ::  (time=0.000068)
www.ucweb.com                  has IPv4  has IPv6  ::  (time=0.000077)