PING www.doudou.com.230b2a2545cfa773.w.cdngslb.com (155.102.167.193) 56(84) bytes of data.
64 bytes from 155.102.167.193 (155.102.167.193): icmp_seq=1 ttl=57 time=5.56 ms
64 bytes from 155.102.167.193 (155.102.167.193): icmp_seq=2 ttl=57 time=5.49 ms
64 bytes from 155.102.167.193 (155.102.167.193): icmp_seq=3 ttl=57 time=5.25 ms

--- www.doudou.com.230b2a2545cfa773.w.cdngslb.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 5.258/5.437/5.562/0.143 ms