PING www.qianduzw.com (104.21.77.75) 56(84) bytes of data.
64 bytes from 104.21.77.75 (104.21.77.75): icmp_seq=1 ttl=60 time=8.09 ms
64 bytes from 104.21.77.75 (104.21.77.75): icmp_seq=2 ttl=60 time=4.15 ms
64 bytes from 104.21.77.75 (104.21.77.75): icmp_seq=3 ttl=60 time=4.04 ms

--- www.qianduzw.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.040/5.429/8.096/1.887 ms