PING www.yes591.com (104.21.11.222) 56(84) bytes of data.
64 bytes from 104.21.11.222 (104.21.11.222): icmp_seq=1 ttl=59 time=4.26 ms
64 bytes from 104.21.11.222 (104.21.11.222): icmp_seq=2 ttl=59 time=4.09 ms
64 bytes from 104.21.11.222 (104.21.11.222): icmp_seq=3 ttl=59 time=4.16 ms

--- www.yes591.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.098/4.177/4.265/0.068 ms