A Little Information About Cookies
Cookies can be either first party or third party cookies. First party refers to the website owner, so in our case, Scottish Council of Independent Schools is the website owner and hence the first party. Some sites use advertising networks to display a series of ads on many sites, for example an ad network may place ads on several newspaper sites. These networks often place third party cookies on visitor devices. These simply track which ads have been served to different visitors.
Many cookies are short lived things - at the end of your session the cookie is removed. Others may persist for a period of time, to allow website owners to, for example, identify frequently returning visitors. Try this site for more detailed information about cookies.
Cookies On SCIS Website