A cookie is a small amount of data, which often includes a unique identifier that is sent to your computer or mobile phone (referred to here as a “device”) browser from a website’s computer and is stored on your device’s hard drive. Each website can send its own cookie to your browser if your browser’s preferences allow it, but (to protect your privacy) your browser only permits a website to access the cookies it has already sent to you, not the cookies sent to you by other websites. Many websites do this whenever a user visits their website in order to track online traffic flows.

Users have the opportunity to set their devices to accept all cookies, to notify them when a cookie is issued, or not to receive cookies at any time. The last of these means that certain personalised features cannot then be provided to that user and accordingly they may not be able to take full advantage of all of the website’s features. Each browser is different, so check the “Help” menu of your browser to learn how to change your cookie preferences.