PING web20vn.com--www.911148.com (104.21.12.50) 56(84) bytes of data.
64 bytes from 104.21.12.50 (104.21.12.50): icmp_seq=1 ttl=60 time=6.86 ms
64 bytes from 104.21.12.50 (104.21.12.50): icmp_seq=2 ttl=60 time=4.05 ms
64 bytes from 104.21.12.50 (104.21.12.50): icmp_seq=3 ttl=60 time=3.91 ms

--- web20vn.com--www.911148.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.918/4.943/6.860/1.356 ms