A purchased domain site license and Go key is required to save Go edited content. You can either purchase a license or open license. A registered license will generate a Go key.
License vs Open License
Purchase a license, to register the site domain and password now, for a single Go license.
Purchase an open license, to register the site domain and password later, for one or more Go licenses.
Have a website and know the domain name and password you'd like to use?
Purchase a license.
Want to purchase now and register the domain and password later?
Purchase an open license.
Want to stock up on Go licenses?
Purchase open licenses.