Strictly necessary cookies: These are cookies that are required for the operation of a website. For example, cookies that enable users to log into secure areas of a website. Generally, these are session cookies that expire on closing the browser but not always.

Performance cookies: These types of cookies allow online providers to recognize and count the number of visitors and to see how visitors move around their website when they are using it. This assists online providers in improving the way their website works, for example, by ensuring that users are finding what they are looking for easily. Generally, these will be first party cookies, and a mix of session and persistent cookies. Sometimes the services are provided  by third parties and specialized software – which can use either first or third-party cookies.

Functionality cookies: These are used to recognize users when they return to a website. They enable the personalization of content, the of users and remember user preferences (for example, their choice of language or region). They are generally a mix of first and third party, session and persistent cookies.

Targeting cookies: These cookies record a user's visit to a website, the individual pages visited and the links followed. If the cookie is set by a third party (for example, an adtech provider) which also monitors traffic on other websites, this type of cookie may also be used to track a user's movements across different websites and to create profiles of their general online behavior. Information collected by tracking cookies is commonly used to serve users with targeted online advertising. These will almost always be third party cookies and mostly persistent.