PING alc.co.jp (18.239.83.45) 56(84) bytes of data.
64 bytes from server-18-239-83-45.ams58.r.cloudfront.net (18.239.83.45): icmp_seq=1
ttl=251 time=5.94 ms
64 bytes from server-18-239-83-45.ams58.r.cloudfront.net (18.239.83.45): icmp_seq=2
ttl=251 time=4.03 ms
64 bytes from server-18-239-83-45.ams58.r.cloudfront.net (18.239.83.45): icmp_seq=3
ttl=251 time=3.89 ms

--- alc.co.jp ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 3.899/4.623/5.941/0.936 ms