PING www.doostra.cz (89.221.213.56) 56(84) bytes of data.
64 bytes from hc1-wd55.wedos.net (89.221.213.56): icmp_seq=1 ttl=60 time=20.3 ms
64 bytes from hc1-wd55.wedos.net (89.221.213.56): icmp_seq=2 ttl=60 time=17.7 ms
64 bytes from hc1-wd55.wedos.net (89.221.213.56): icmp_seq=3 ttl=60 time=17.7 ms

--- www.doostra.cz ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 17.782/18.638/20.344/1.216 ms