PING proud-web.jp (18.239.50.19) 56(84) bytes of data.
64 bytes from server-18-239-50-19.ams58.r.cloudfront.net (18.239.50.19): icmp_seq=1
ttl=251 time=4.94 ms
64 bytes from server-18-239-50-19.ams58.r.cloudfront.net (18.239.50.19): icmp_seq=2
ttl=251 time=4.58 ms
64 bytes from server-18-239-50-19.ams58.r.cloudfront.net (18.239.50.19): icmp_seq=3
ttl=251 time=4.64 ms

--- proud-web.jp ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.584/4.722/4.941/0.175 ms