Important

This is the documentation for older versions of the Prototype Kit

Covering versions 7, 8, 9, 10, 11 and 12

Go to latest version

Cookies

The GOV.UK Prototype Kit puts small files (known as ‘cookies’) on to your computer.

We use cookies to make prototypes work as well as possible.

These cookies aren’t used to identify you personally.

Find out how to manage cookies.

Storing users' answers within prototypes

To help prototypes work as well as possible, each prototype stores a cookie to remember what users select on question pages.

This allows prototypes to have branching pages and show users' answers on pages like the 'Check your answers' summary page.

Cookies relating to storing users' answers within prototypes
Name Purpose Expires
govuk-prototype-kit-<UNIQUE-ID> Storing users' answers from question pages 4 hours