Abstract: Techniques for content output are described. A computing component determines that a first zone identifier is associated with at least a first permission that enables identifying first content output and controlling the first content output, and that a second zone identifier is associated with a second permission that enables identifying second content output and prohibiting the second content output. Based at least in part on the first permission, this component causes the first content output by a first speaker associated with the first zone identifier and causes a first display associated with the first zone identifier to present a first graphical user interface that identifies the first content and includes a content control component.

Abstract: Systems and methods are provided for generating a tracking code that may be included in an identifier, such as an identifier identifying a network resource or network location, in order to track various information associated with the identifier upon user selection of the identifier. For example, a tracking code may be dynamically generated and appended to an identifier associated with one or more selectable options in a user interface. The tracking code may, for example, identify the section or portion within the user interface that the selectable option is included and/or other information. When a user selects such a selectable option in the user interface, information included in the tracking code may be stored and/or analyzed to determine effectiveness or performance of various selectable options.