PING www.qiantuwan.com (104.21.30.228) 56(84) bytes of data.
64 bytes from 104.21.30.228 (104.21.30.228): icmp_seq=1 ttl=60 time=4.14 ms
64 bytes from 104.21.30.228 (104.21.30.228): icmp_seq=2 ttl=60 time=4.11 ms
64 bytes from 104.21.30.228 (104.21.30.228): icmp_seq=3 ttl=60 time=4.08 ms

--- www.qiantuwan.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.082/4.113/4.140/0.023 ms