Cookies
We put small files (known as ‘cookies’) onto your computer to collect information about how you browse the site. Find out more about the cookies we use, what they’re for and when they expire.
Last changed: 11 June 2025
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Cookies that measure website use
We use Google Analytics cookies to collect information about how you use our website.
We use the following Google Analytics cookies on this site:
| Name | Purpose | Expires |
|---|---|---|
| _ga | This cookie is used to assign a unique ID to each user, allowing Google Analytics to track them over time across multiple sessions. It’s included in each page request and is used to calculate visitor, session, and campaign data for the website’s analytics reports. | 2 years |
| _gid | This cookie stores a unique value for each page visited by the user within a specific session. It’s used to distinguish users within a single session (usually lasting for 24 hours) and helps with short-term, session-based tracking. | 24 hours |
You can opt out of Google Analytics cookies by installing the Google Analytics Opt-out Browser Add-on.