ListNanny is licensed and priced on a PER SERVER basis or Site License basis.
A server license is required for each SERVER, WORKSTATION, PC, or DEVELOPMENT computer where ListNanny is installed.
ListNanny is not licensed per Domain, URL, IP address, building, or per processor. Licensing is on a per computer basis only.
ListNanny site license allows you to install ListNanny on an unlimited number of servers at a single, physlical location. A physical location is typcially defined as a single mailing address.
Enterprise License (not royalty free)
The enterprise license allows you to install the product on an unlimited number of servers and locations for your enterprise. The main difference between the site license and the entprise license, is the enterprise license is not limited to a single site. This allows the software to be installed at remote locations in your organization.
Per developer, royalty free licenses
As an additional option, ListNanny can be purchased on a per developer basis. This licensing structure allows you to distibute the software with your products on a royalty-free, runtime basis. A license will be required for each developer working with the product or compiling it. Be sure to read the specific terms of the per-developer section of the license to see if you qualify for this scenario.
If you are reselling your software, this is the only licensing option for your scenario.