PING proxy.cn.qizhihaotian.com (106.63.29.9) 56(84) bytes of data.
64 bytes from 106.63.29.9: icmp_seq=1 ttl=53 time=243 ms
64 bytes from 106.63.29.9: icmp_seq=2 ttl=53 time=243 ms
64 bytes from 106.63.29.9: icmp_seq=3 ttl=53 time=242 ms

--- proxy.cn.qizhihaotian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6010ms
rtt min/avg/max/mdev = 242.628/243.225/243.801/0.744 ms