It's called a loan. You can get a business loan from a bank, or a home equity loan or second mortgage. In the second case, you're not mortgaging the domain na

It's called a loan. You can get a business loan from a bank, or a home equity loan or second mortgage. In the second case, you're not mortgaging the domain name; you're mortgaging the house. If you default, then the bank will take your house and sell it. The reason you don't mortgage the domain name is that the bank does not want to own or try to sell a domain name. They have even less idea about domain name values than they do about home values.