Tracking Sessions

There are three common ways for servers to implement session tracking:
  1. A unique ID may be placed into the URL of subsequent pages.
  2. A unique ID may be placed in the query parameter of subsequent pages.
  3. The server sends a cookie that contains a unique identifier with the response. The user agent saves the cookie, and then includes the cookie with the next request.

BIS uses the third method, cookies, to identify sessions.