PING www.pcc.ac.th.cdn.cloudflare.net (172.67.221.10) 56(84) bytes of data.
64 bytes from 172.67.221.10 (172.67.221.10): icmp_seq=1 ttl=60 time=6.54 ms
64 bytes from 172.67.221.10 (172.67.221.10): icmp_seq=2 ttl=60 time=4.18 ms
64 bytes from 172.67.221.10 (172.67.221.10): icmp_seq=3 ttl=60 time=4.07 ms

--- www.pcc.ac.th.cdn.cloudflare.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.074/4.935/6.545/1.140 ms