PING dsehygiene.co.kr (18.238.243.4) 56(84) bytes of data.
64 bytes from server-18-238-243-4.ams58.r.cloudfront.net (18.238.243.4): icmp_seq=1
ttl=251 time=4.85 ms
64 bytes from server-18-238-243-4.ams58.r.cloudfront.net (18.238.243.4): icmp_seq=2
ttl=251 time=4.77 ms
64 bytes from server-18-238-243-4.ams58.r.cloudfront.net (18.238.243.4): icmp_seq=3
ttl=251 time=4.81 ms

--- dsehygiene.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.772/4.813/4.858/0.066 ms