PING liemoren.com.cn (104.21.55.239) 56(84) bytes of data.
64 bytes from 104.21.55.239 (104.21.55.239): icmp_seq=1 ttl=59 time=5.73 ms
64 bytes from 104.21.55.239 (104.21.55.239): icmp_seq=2 ttl=59 time=5.16 ms
64 bytes from 104.21.55.239 (104.21.55.239): icmp_seq=3 ttl=59 time=5.20 ms

--- liemoren.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 5.160/5.364/5.730/0.259 ms