I want to add a domain for testing a site..not sure which option

I want a separate website that I can use for clients for testing. I don’t need a .com or specific domain name. xxx.jodohost.com or anything will be fine. Don’t really care what it is called, the name is not important but I do want it to work independent of my other sites and not to cost me any extra money (unless I go over my account domain limit)

In Hsphere, there are 2 options

  1. Third Level Domain Name Registration
  2. Stopgap domain registration

Not sure which one to use. Obviously if there are 2 different options, there are reasons for them. I just don’t know why someone would pick one over the other???

it doesn’t make a different. You get one of each. A stopgap domain will generate you a more complex domain name