PING dz-www.51banqian.com (104.21.76.82) 56(84) bytes of data.
64 bytes from 104.21.76.82 (104.21.76.82): icmp_seq=1 ttl=59 time=7.29 ms
64 bytes from 104.21.76.82 (104.21.76.82): icmp_seq=2 ttl=59 time=5.30 ms
64 bytes from 104.21.76.82 (104.21.76.82): icmp_seq=3 ttl=59 time=5.24 ms

--- dz-www.51banqian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 5.245/5.948/7.297/0.956 ms