PING ip-www.boyuan.com (159.75.129.171) 56(84) bytes of data.
64 bytes from 159.75.129.171 (159.75.129.171): icmp_seq=1 ttl=50 time=280 ms
64 bytes from 159.75.129.171 (159.75.129.171): icmp_seq=2 ttl=50 time=280 ms
64 bytes from 159.75.129.171 (159.75.129.171): icmp_seq=3 ttl=50 time=280 ms

--- ip-www.boyuan.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 280.550/280.621/280.659/0.050 ms