PING proxy.cn.qizhihaotian.com (106.63.29.13) 56(84) bytes of data.
64 bytes from 106.63.29.13: icmp_seq=1 ttl=52 time=308 ms
64 bytes from 106.63.29.13: icmp_seq=2 ttl=52 time=308 ms
64 bytes from 106.63.29.13: icmp_seq=3 ttl=52 time=308 ms

--- proxy.cn.qizhihaotian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 7095ms
rtt min/avg/max/mdev = 308.242/308.341/308.411/0.071 ms