PING wphil.kr (18.238.243.52) 56(84) bytes of data.
64 bytes from server-18-238-243-52.ams58.r.cloudfront.net (18.238.243.52): icmp_seq=1
ttl=251 time=4.61 ms
64 bytes from server-18-238-243-52.ams58.r.cloudfront.net (18.238.243.52): icmp_seq=2
ttl=251 time=4.50 ms
64 bytes from server-18-238-243-52.ams58.r.cloudfront.net (18.238.243.52): icmp_seq=3
ttl=251 time=4.45 ms

--- wphil.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.458/4.524/4.616/0.102 ms