Cookie Methods | Visualforce Developer Guide

getDomain()
Returns the name of the server making the request.

getMaxAge()
Returns a number representing how long the cookie is valid for, in seconds. If set to < 0, a session cookie is issued. If set to 0, the cookie is deleted.

getName()
Returns the name of the cookie. Can't be null.

getPath()
Returns the path from which you can retrieve the cookie. If null or blank, the location is set to root, or “/”.

getValue()
Returns the data captured in the cookie, such as Session ID.

isSecure()
Returns true if the cookie can only be accessed through HTTPS, otherwise returns false.