PING alpdn.org (104.21.50.159) 56(84) bytes of data.
64 bytes from 104.21.50.159 (104.21.50.159): icmp_seq=1 ttl=59 time=4.54 ms
64 bytes from 104.21.50.159 (104.21.50.159): icmp_seq=2 ttl=59 time=4.27 ms
64 bytes from 104.21.50.159 (104.21.50.159): icmp_seq=3 ttl=59 time=4.38 ms

--- alpdn.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.279/4.403/4.546/0.109 ms