BetaWe're making improvements — you're viewing a page on our new site.

Cookies

Your settings

About cookies

To help improve this site we place small files, known as cookies, onto your computer. Some are essential for the site to work properly, others are to improve the experience you have.

You can stop this site using non-essential cookies by updating your settings above.

Please note, if you have used the site in the past these cookies may still be on your computer - but by disabling them in your settings we will no longer access them.

You can also decide to stop this or any site from using any cookies. To learn more about cookies and how to manage them visit KnowCookies.com.

How we use cookies

We use cookies for several purposes on this website – we’ve listed each of them below with more details about why we use them and how long they’ll last.

Cookies to improve your experience

You can tell us to stop using these at any time by updating your settings above.

Measuring website usage (Matomo)

We use Matomo to collect information about how people use our site, and rough demographics as to what groups of people are using our site. We do this to make sure it’s meeting your needs and to understand how we could improve it.

Matomo stores information about:

  • the pages you visit
  • how long you spend on each page
  • how you got to the site
  • what you click on while you're here

The following cookies are set by Matomo:

Cookies set by Matomo
NamePurposeExpires
_pk_cvarA short-lived cookie that temporarily stores data for your visit30 mins
_pk_sesA short-lived cookie that temporarily stores data for your visit30 mins
matomo_sessidThis is created when the opt-out feature is used and helps provide fraud preventionWhen you close your browser
_pk_refThis is used to store the attribution information the referrer initially used to visit the website6 months
_pk_idThis stores a few details about you as a user, such as the unique visitor ID13 months
_pk_testcookieThis checks whether your browser supports cookies, and is then directly deletedCreated, then directly deleted

Essential cookies

Website operation

The system that runs our website sets cookies to allow it to run smoothly.

Essential cookies that allow the website to run smoothly
NamePurposeExpires
cookiesPrivacyUsed to remember your privacy preferences90 days
AWSALBUsed to make sure the website can cope with unexpected traffic2 years
AWSALBCORSUsed to make sure the website can cope with unexpected traffic2 years

NB: Cookie guidance wording adapted from cookies on gov.uk, shared under the Open Government Licence.