PING 51guanjiapo.com (104.21.112.1) 56(84) bytes of data.
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=1 ttl=60 time=5.72 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=2 ttl=60 time=4.40 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=3 ttl=60 time=4.45 ms

--- 51guanjiapo.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.406/4.861/5.724/0.615 ms