PING web20vn.com--slymwl.qingfengyl.com (122.114.0.184) 56(84) bytes of data.
64 bytes from 122.114.0.184: icmp_seq=1 ttl=53 time=291 ms
64 bytes from 122.114.0.184: icmp_seq=2 ttl=53 time=290 ms
64 bytes from 122.114.0.184: icmp_seq=3 ttl=53 time=288 ms

--- web20vn.com--slymwl.qingfengyl.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 8571ms
rtt min/avg/max/mdev = 288.704/290.206/291.730/1.235 ms