PING www.wdem.cn (104.221.170.120) 56(84) bytes of data.
64 bytes from 104.221.170.120 (104.221.170.120): icmp_seq=1 ttl=122 time=148 ms
64 bytes from 104.221.170.120 (104.221.170.120): icmp_seq=2 ttl=122 time=148 ms
64 bytes from 104.221.170.120 (104.221.170.120): icmp_seq=3 ttl=122 time=148 ms

--- www.wdem.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2245ms
rtt min/avg/max/mdev = 148.171/148.444/148.884/0.444 ms