PING www.seajelly.co.kr (18.239.50.39) 56(84) bytes of data.
64 bytes from server-18-239-50-39.ams58.r.cloudfront.net (18.239.50.39): icmp_seq=1
ttl=251 time=6.31 ms
64 bytes from server-18-239-50-39.ams58.r.cloudfront.net (18.239.50.39): icmp_seq=2
ttl=251 time=3.98 ms
64 bytes from server-18-239-50-39.ams58.r.cloudfront.net (18.239.50.39): icmp_seq=3
ttl=251 time=4.03 ms

--- www.seajelly.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 3.983/4.779/6.317/1.087 ms