If your looking to resell domain names I would highly recommend getting a billing control panel that uses a domain name registrars api. This will allow you to automate any and all sales while also being able to monitor for fraud using maxmind.

A really good example of a billing system that does pretty much everything is WHMCS.com. They support the following registrars in their billing system.

  • Enom (Provides a free account)
  • ResellerClub/DirectI (Provides a free account)
  • Nominet
  • OpenSRS
  • ResellOne
  • OnlineNIC
  • LogicBoxes
  • PlanetDomain
  • DistributeIT
  • TPPInternet
  • RegisterFly
  • StarGate
  • NameCheap
  • NetEarthOne
  • 12Register
  • HexoNet
  • RealtimeRegister
  • IPMirror
  • DotDNS
  • WebNIC
  • InternetBS
  • NetRegistry
  • TransIP
  • DotTK
  • Affordable Domains
  • Bizcn