1 Answer. A session variable's content is stored on the server, however, the session is identified by a session ID which is stored at the client and sent with each request. Usually the session ID is stored in a cookie, but it can also be appended to URL's.

Is session stored in browser?

To track sessions, a web session ID is stored in a visitor's browser. This session ID is passed along with any HTTP requests that the visitor makes while on the site (e.g., clicking a link). “Session” is the term used to refer to a visitor's time browsing a web site.

How is session ID stored?

A session ID is a unique number that a Web site's server assigns a specific user for the duration of that user's visit (session). The session ID can be stored as a cookie, form field, or URL (Uniform Resource Locator). Some Web servers generate session IDs by simply incrementing static numbers.