PING www.chengxinyi.com (104.21.55.175) 56(84) bytes of data.
64 bytes from 104.21.55.175 (104.21.55.175): icmp_seq=1 ttl=60 time=5.80 ms
64 bytes from 104.21.55.175 (104.21.55.175): icmp_seq=2 ttl=60 time=4.15 ms
64 bytes from 104.21.55.175 (104.21.55.175): icmp_seq=3 ttl=60 time=4.13 ms

--- www.chengxinyi.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.134/4.697/5.805/0.787 ms