PING www.nandaihejia.com (104.21.53.156) 56(84) bytes of data.
64 bytes from 104.21.53.156 (104.21.53.156): icmp_seq=1 ttl=59 time=5.02 ms
64 bytes from 104.21.53.156 (104.21.53.156): icmp_seq=2 ttl=59 time=5.02 ms
64 bytes from 104.21.53.156 (104.21.53.156): icmp_seq=3 ttl=59 time=5.02 ms

--- www.nandaihejia.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 5.021/5.023/5.029/0.081 ms