PING reference.com (185.199.108.153) 56(84) bytes of data.
64 bytes from cdn-185-199-108-153.github.com (185.199.108.153): icmp_seq=1 ttl=61
time=4.03 ms
64 bytes from cdn-185-199-108-153.github.com (185.199.108.153): icmp_seq=2 ttl=61
time=4.24 ms
64 bytes from cdn-185-199-108-153.github.com (185.199.108.153): icmp_seq=3 ttl=61
time=4.12 ms

--- reference.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.038/4.136/4.246/0.085 ms