PING web20vn.com--www.dxclz.cn (104.21.3.157) 56(84) bytes of data.
64 bytes from 104.21.3.157 (104.21.3.157): icmp_seq=1 ttl=60 time=4.36 ms
64 bytes from 104.21.3.157 (104.21.3.157): icmp_seq=2 ttl=60 time=4.37 ms
64 bytes from 104.21.3.157 (104.21.3.157): icmp_seq=3 ttl=60 time=4.23 ms

--- web20vn.com--www.dxclz.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.239/4.326/4.375/0.098 ms