PING www.ywruyi.com (172.67.169.91) 56(84) bytes of data.
64 bytes from 172.67.169.91 (172.67.169.91): icmp_seq=1 ttl=60 time=4.98 ms
64 bytes from 172.67.169.91 (172.67.169.91): icmp_seq=2 ttl=60 time=4.23 ms
64 bytes from 172.67.169.91 (172.67.169.91): icmp_seq=3 ttl=60 time=4.22 ms

--- www.ywruyi.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.227/4.482/4.983/0.362 ms