PING www.nuanhecn.com--www.nuanhecn.com (104.21.63.187) 56(84) bytes of data.
64 bytes from 104.21.63.187 (104.21.63.187): icmp_seq=1 ttl=59 time=4.94 ms
64 bytes from 104.21.63.187 (104.21.63.187): icmp_seq=2 ttl=59 time=4.68 ms
64 bytes from 104.21.63.187 (104.21.63.187): icmp_seq=3 ttl=59 time=4.88 ms

--- www.nuanhecn.com--www.nuanhecn.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.681/4.835/4.941/0.137 ms