PING www.lirenhuiphoto.com (104.21.87.53) 56(84) bytes of data.
64 bytes from 104.21.87.53 (104.21.87.53): icmp_seq=1 ttl=60 time=7.27 ms
64 bytes from 104.21.87.53 (104.21.87.53): icmp_seq=2 ttl=60 time=4.04 ms
64 bytes from 104.21.87.53 (104.21.87.53): icmp_seq=3 ttl=60 time=3.93 ms

--- www.lirenhuiphoto.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 3.932/5.082/7.275/1.552 ms