Summary
ns-east.cerf.net has one IP number , which also has a corresponding reverse pointer.
srv1-jacobdelafon.ma point to the same IP.
dhd.com,
mlb.com,
xif.com,
cerf.net,
emct.com and at least 100 other hosts use this as a nameserver.
cerf.net is a domain controlled by two nameservers at
cerf.net themselves. They are on different IP networks. Incoming mail for
cerf.net is handled by two mailservers having a total of six IP numbers. There are six duplicated IP numbers. Some of them are on the same IP network.
ns-east.cerf.net is hosted on a server in United States.