Airspray

Needed for the site to work at all — remembering what is in your basket, keeping you signed in, and keeping forms secure. These cannot be switched off.

Remember choices you have made, such as your region or preferences, so the site behaves the way you left it.

Help us understand how the site is used — which pages people read, where they arrive from, and what is not working. Never used to identify you personally.

Used to measure advertising and to show you relevant adverts on other websites. These are the ones that follow you around the internet.