PING rbls.org (104.21.112.1) 56(84) bytes of data.
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=1 ttl=60 time=6.21 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=2 ttl=60 time=4.38 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=3 ttl=60 time=4.31 ms

--- rbls.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.319/4.973/6.214/0.879 ms