PING viettrendss.appspot.com (172.217.218.153) 56(84) bytes of data.
64 bytes from en-in-f153.1e100.net (172.217.218.153): icmp_seq=1 ttl=114 time=2.19 ms
64 bytes from en-in-f153.1e100.net (172.217.218.153): icmp_seq=2 ttl=114 time=0.322 ms
64 bytes from en-in-f153.1e100.net (172.217.218.153): icmp_seq=3 ttl=114 time=0.307 ms

--- viettrendss.appspot.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 0.307/0.941/2.194/0.886 ms