What Is a Search Hub
Using the Interface Editor, you can:
Select the search interfaces appearing in a hub (see Making Search Interfaces Available in a Search Hub
Add a search interface to a hub and restrict who can access this search interface by assigning one or more audiences to the search interface (see Adding Search Interfaces in a Search Hub).
Create new search hubs (see Creating a Search Hub).
A search hub is referenced in the default document defined in IIS for your Coveo search website but you can also use Coveo search hubs in any ASCX file (see Integrating a Search Hub in ASP).