A cookie is a file containing an identifier (a string of letters and numbers) that is sent by a web server to a web browser and is stored by the browser. The identifier is then sent back to the server each time the browser requests a page from the server.
Cookies may be either “persistent” or “session”: a persistent cookie will be stored by a web browser and will remain valid until a set expiry date, unless deleted by the user before the expiry date; a session cookie, on the other hand, will expire at the end of the user session, when the web browser is closed. Our website uses session cookies only.
For further information and advice on blocking, deleting or disabling cookies, please visit this website.
Blocking or deleting cookies will have a negative impact upon the usability of many websites.