ping mining.sesterce.com
PING mining.sesterce.com (104.24.127.249) 56(84) bytes of data.
64 bytes from 104.24.127.249: icmp_seq=1 ttl=57 time=7.19 ms
64 bytes from 104.24.127.249: icmp_seq=2 ttl=57 time=7.09 ms

This IP is in USA .... It does not mean much but is something more to add.

I am in europe I would like to buy antminer z15 ... but this store ... I do not know... Is hard to risk money like this