Summary
okiennice.ol.pl has one IP number , which is the same as for
ol.pl, but the reverse is
ol.pl.
ol.pl,
elgrom.pl,
mail.ol.pl,
jakub.ol.pl,
admin.ol.pl and at least 41 other hosts point to the same IP.
www.okiennice.ol.pl are subdomains to this hostname.
ol.pl is delegated to two nameservers, however one delegated nameserver is missing in the zone and one other nameserver is listed instead. All of them are on different IP networks. Incoming mail for
ol.pl is handled by one mailserver at
ol.pl themselves.
okiennice.ol.pl is hosted on a server in Germany even though the hostname implies Poland.