Last updated: 20 September 2026
Essential technology
Cloudflare may use strictly necessary security technology, including the __cf_bm cookie, to protect the site from malicious traffic. Your analytics preference is stored locally in your browser so the website can remember your choice.
Optional analytics
If you accept analytics, Google Analytics may use identifiers such as _ga and _ga_* to measure visits and navigation. Microsoft Clarity may use identifiers such as _clck and _clsk to provide aggregated interaction and session insights. These tools help us understand which content is useful and where the website can be improved.
Your choice
Rejecting analytics does not affect access to the website. You can change your preference at any time.
Further information
See the privacy notice for more information about the organisations involved, purposes, retention and your rights.