PING ruifengtech.com (154.218.157.219) 56(84) bytes of data.
64 bytes from 154.218.157.219 (154.218.157.219): icmp_seq=1 ttl=57 time=201 ms
64 bytes from 154.218.157.219 (154.218.157.219): icmp_seq=2 ttl=57 time=199 ms
64 bytes from 154.218.157.219 (154.218.157.219): icmp_seq=3 ttl=57 time=198 ms

--- ruifengtech.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 198.961/199.818/201.423/1.192 ms