PING www.seo.cn (103.44.250.47) 56(84) bytes of data.
64 bytes from 103.44.250.47 (103.44.250.47): icmp_seq=1 ttl=51 time=247 ms
64 bytes from 103.44.250.47 (103.44.250.47): icmp_seq=2 ttl=51 time=247 ms
64 bytes from 103.44.250.47 (103.44.250.47): icmp_seq=3 ttl=51 time=247 ms

--- www.seo.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 247.276/247.308/247.346/0.407 ms