PING www.shzhongkao.icoc.cc.whoisbucket.com.radabg.com (172.67.143.66) 56(84) bytes of
data.
64 bytes from 172.67.143.66 (172.67.143.66): icmp_seq=1 ttl=59 time=4.93 ms
64 bytes from 172.67.143.66 (172.67.143.66): icmp_seq=2 ttl=59 time=4.84 ms
64 bytes from 172.67.143.66 (172.67.143.66): icmp_seq=3 ttl=59 time=4.84 ms

--- www.shzhongkao.icoc.cc.whoisbucket.com.radabg.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.843/4.874/4.936/0.043 ms