PING vip.yhzldjj.com (104.21.53.20) 56(84) bytes of data.
64 bytes from 104.21.53.20 (104.21.53.20): icmp_seq=1 ttl=59 time=4.98 ms
64 bytes from 104.21.53.20 (104.21.53.20): icmp_seq=2 ttl=59 time=4.85 ms
64 bytes from 104.21.53.20 (104.21.53.20): icmp_seq=3 ttl=59 time=4.83 ms

--- vip.yhzldjj.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.839/4.891/4.986/0.104 ms