PING www.com--www.sz2boys.cn (104.21.13.203) 56(84) bytes of data.
64 bytes from 104.21.13.203 (104.21.13.203): icmp_seq=1 ttl=59 time=5.43 ms
64 bytes from 104.21.13.203 (104.21.13.203): icmp_seq=2 ttl=59 time=5.32 ms
64 bytes from 104.21.13.203 (104.21.13.203): icmp_seq=3 ttl=59 time=5.26 ms

--- www.com--www.sz2boys.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 5.261/5.340/5.432/0.070 ms