PING www.qisj.com (104.21.78.226) 56(84) bytes of data.
64 bytes from 104.21.78.226 (104.21.78.226): icmp_seq=1 ttl=59 time=4.45 ms
64 bytes from 104.21.78.226 (104.21.78.226): icmp_seq=2 ttl=59 time=4.10 ms
64 bytes from 104.21.78.226 (104.21.78.226): icmp_seq=3 ttl=59 time=4.12 ms

--- www.qisj.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.107/4.227/4.454/0.168 ms