PING www.biyou-m.com (104.21.64.1) 56(84) bytes of data.
64 bytes from 104.21.64.1 (104.21.64.1): icmp_seq=1 ttl=60 time=6.56 ms
64 bytes from 104.21.64.1 (104.21.64.1): icmp_seq=2 ttl=60 time=4.13 ms
64 bytes from 104.21.64.1 (104.21.64.1): icmp_seq=3 ttl=60 time=4.18 ms

--- www.biyou-m.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 4.136/4.962/6.566/1.136 ms