u-j.biz is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at 4servers.com. They are on different IP networks. perma.net, gsssi.com, 01xray.com, fact.on.ca, allieo.com and at least 56 other hosts share nameservers with this domain. Reputation is not yet known.