The details
Cookies
What this site stores on your device, and how to change your choice.
No analytics cookies unless you accept
When you first visit, we ask whether we can use Google Analytics. Until you press Accept, no Google script loads and no analytics cookie is set. If you press Reject, nothing is loaded.
If you accept
We load Google Analytics through Google Tag Manager so we can see, in aggregate, which pages are read and how people move through the site. Google Analytics sets these cookies:
- _ga: tells visits apart. Expires after up to 2 years.
- _ga_* (for example
_ga_GS2Z1EXSNP): keeps track of the current session. Expires after up to 2 years.
Google processes this data under its own terms. You can read how Google uses it at policies.google.com.
Your choice itself
We remember whether you accepted or rejected in your browser's local storage, under the name cookie_consent, so we don't ask on every page. It is not sent to us.
Changing your mind
Use (also in the footer of every page) at any time. If you switch from Accept to Reject, we remove the Google Analytics cookies we can reach and reload the page. You can also clear cookies and site data in your browser settings.
The enquiry form
The enquiry form doesn't set cookies. What happens to the details you type into it is explained in our privacy notice.
Last reviewed: September 2026