External user segments can restrict which solutions are available on a Self Service site. Solutions use an external audience property that controls which external user segments can view them.
To control which solutions are available on a Self Service site:
Configure external user segments that include only visitors to a specific site. See Creating a Site-Specific External User Segment.
Include that external user segment in the external audience property of the solutions for the site.
Site-specific segments match the external audience of solutions (1). Other solutions are not available (2).
Note: The segment shown in this diagram has been created specifically for the site it is associated with. However, the site and segment are separate entities.