PING www.hnhanshan.com (104.21.6.4) 56(84) bytes of data.
64 bytes from 104.21.6.4 (104.21.6.4): icmp_seq=1 ttl=60 time=6.26 ms
64 bytes from 104.21.6.4 (104.21.6.4): icmp_seq=2 ttl=60 time=4.12 ms
64 bytes from 104.21.6.4 (104.21.6.4): icmp_seq=3 ttl=60 time=4.13 ms

--- www.hnhanshan.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.120/4.841/6.267/1.008 ms