PING koreamaster.org (13.227.219.29) 56(84) bytes of data.
64 bytes from server-13-227-219-29.ams54.r.cloudfront.net (13.227.219.29): icmp_seq=1
ttl=249 time=4.84 ms
64 bytes from server-13-227-219-29.ams54.r.cloudfront.net (13.227.219.29): icmp_seq=2
ttl=249 time=3.67 ms
64 bytes from server-13-227-219-29.ams54.r.cloudfront.net (13.227.219.29): icmp_seq=3
ttl=249 time=3.62 ms

--- koreamaster.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.625/4.045/4.841/0.567 ms