PING web20vn.com--www.bulaike.com (104.21.16.1) 56(84) bytes of data.
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=1 ttl=60 time=5.19 ms
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=2 ttl=60 time=4.42 ms
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=3 ttl=60 time=3.90 ms

--- web20vn.com--www.bulaike.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 3.903/4.507/5.199/0.538 ms