Choose which cookies we use
Let us know which cookies we can use. We’ll use a cookie to save your settings for the next 3 calendar months. This setting applies across all our digital services, not just the one you are accessing now.
Cookies that measure website use (analytics cookies)
These cookies store information about how you use our website, such as the links you click on. We use them to help make our website better.
List of cookies that measure website use
Cookie names and purposes
| Cookie name |
Purpose |
Expires |
| _utma |
To determine the number of unique visitors to our website |
2 years |
| _utmb |
To establish and continue your internet browser session on our website |
30 minutes |
| _utmt |
To manage data transfer volumes |
10 minutes |
| _utmz |
To determine where you came from when visiting our website |
6 months |
| _ga |
To distinguish users |
2 years |
| _gid |
To distinguish users |
24 hours |
| _gat |
To manage data transfer volumes |
10 minutes |
| _utmc |
To determine whether the user was beginning a new session/visit |
Until you close your browser |
| _utmv |
To store information about your visit to our webpages. This is updated every time information is sent to Google Analytics. |
2 years after the last update |