PING www.kimsungmin.co.kr (108.156.60.38) 56(84) bytes of data.
64 bytes from server-108-156-60-38.ams1.r.cloudfront.net (108.156.60.38): icmp_seq=1
ttl=251 time=5.97 ms
64 bytes from server-108-156-60-38.ams1.r.cloudfront.net (108.156.60.38): icmp_seq=2
ttl=251 time=4.23 ms
64 bytes from server-108-156-60-38.ams1.r.cloudfront.net (108.156.60.38): icmp_seq=3
ttl=251 time=4.17 ms

--- www.kimsungmin.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.172/4.793/5.977/0.840 ms