We pick i.root-servers.net, one of the 13 root servers (1), and ask it about bud.be and learn that be is delegated to five name servers (2), so we ask x.dns.be where we learn that bud.be is delegated to two name servers, including ns2.above.com (3), so we ask that one and get the following answer:
Bud.be is a domain controlled by three domain name servers at openminds.be and om-powered.net having a total of six IP numbers. Some of them are on the same IP network. Incoming mail for bud.be is handled by two mail servers at openminds.be having a total of three IP numbers. All three of them are on different IP networks. Bud.be has one IP number (195.47.215.250).
The two mail servers hotel and romeo.openminds.be together
There are more than a thousands domains that use the two mail servers hotel and romeo.openminds.be together, hereafter referred to as "mail server group 1".
Most of them use name server group 1 (example: asianporn.be, minimum.be and befree.be ). Worth noting is that a third of the domains that use name server group 1 use mail server group 1.
The three name servers ns1.openminds.be, ns2.openminds.be and ns3.om-powered.net together
There are more than two thousand domains that use name server group 1.
Every fifth of them use the two mail servers argon and hotel.openminds.be together, hereafter referred to as "mail server group 2", (example: lievennollet.be, spoton.eu and bartdewaele.be ). Worth noting is that three quarter of the domains that use mail server group 2 use name server group 1.
There are more than a thousands domains that only use the IPv4 number 195.47.215.250.
Three quarter of those use mail server group 1 (example: paardenforum.be, textile.be and shooter.be ). Worth noting is that most of the domains that use mail server group 1 use only the IPv4 number 195.47.215.250.