Below is a list of the persistent cookies, what information they hold and their purpose. For general information on what cookies are, and how to control them on your computer, see the Cookies Information page.

Multiple cookies may be found in a single file depending on which browser you use:

PREF

A YouTube and Google cookie that stores a unique ID number to track user preferences.

NID (Network Interface Device)

Unique identifiers given to each computer to allow traffic analysis to Google Maps.

SNID (Subscriber Network Interface Device)

A unique ID assigned to the subscriber network and the user (Google); it will log aggregate amounts of searches, hits and web pages.

VISITOR_INFO1_LIVE

A YouTube cookie