The functionality is:
The purpose is:
This period shows the length of the period at which a service can store and/or read certain data from your computer by using a cookie, a pixel, an API, cookieless tracking, or other resources.
This describes if this specific cookie , localStorage or other resource is responsible for sharing, collecting or storing direct or indirect personal data.
This is the number of times a website requested information from cookiedatabase about this particular “cookie” used on their website.
This cookie appears to be related to Facebook, according to the bt.com cookie information;
This cookie name (utilising HTML Session Storage) is associated with Facebook and is used for authentication purposes and to facilitate the Facebook user login process