The Reference session agent manages the detection and population of user agent information that is extracted from the request buffer. When a user submits a request to the web application, information about the visitor's browser, operating system, and type of application (mobile, desktop, BOT) is included in the request.

The information in the request is compared to a set of publicly maintained standards and overrides that you define to determine if the submitted user agent information matches known user agents.

• Initially, the Reference session agent examines a self-pruning cache that it maintains in memory for faster access to the mostly commonly detected values.
• If no match is found, the session agent examines other file-based resources for matches.