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Small files (known as ‘cookies’) are put onto your computer to collect information about how you browse this site.

Cookies are used to:

  • measure how you use the website so it can be updated and improved based on your needs
  • remember the notifications you’ve seen so that you’re not shown them again

The cookies used by this site aren’t used to identify you personally.

Find out more about how to manage cookies (opens in a new window)

How cookies are used

Measuring website usage (Google Analytics)

We use Google Analytics software to collect information about how you use this site. We do this to help make sure this site is meeting the needs of its users and to help us make improvements.

Google Analytics stores information about:

  • the pages you visit on this site
  • how long you spend on each page of this site
  • how you got to this site
  • what you click on while you’re visiting this site

We don’t collect or store your personal information (e.g. your name or address) so this information can’t be used to identify who you are.

We don’t allow Google to use or share our analytics data.

Google Analytics sets the following cookies:

Universal Analytics
Name Purpose Expires
_ga This helps us count how many people visit our site by tracking if you’ve visited before 2 years
_gat Used to manage the rate at which page view requests are made 10 minutes
_gid Used to distinguish users 1 day

You can opt out of Google Analytics cookies (opens in a new window).


A cookie is set to record your session.

Name Purpose Expires
JSESSIONID Used to maintain your progress between pages When your browser closes
Seen_cookie_message Records cookie preference 2 days