PING www.vungtau-city.com (104.21.37.151) 56(84) bytes of data.
64 bytes from 104.21.37.151 (104.21.37.151): icmp_seq=1 ttl=60 time=4.78 ms
64 bytes from 104.21.37.151 (104.21.37.151): icmp_seq=2 ttl=60 time=4.33 ms
64 bytes from 104.21.37.151 (104.21.37.151): icmp_seq=3 ttl=60 time=4.27 ms

--- www.vungtau-city.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.275/4.467/4.788/0.234 ms