Privacy

• Outside the European Economic Area, the UK and Switzerland we use Google Analytics to count visits and clicks. It sets cookies; you can block them in your browser.
• When you click a sign-up button we record the time, the exchange, the page, your country (from your connection) and your device type. We do not store your IP address; we keep a one-way fingerprint for ten minutes' de-duplication.
• If you report an error we store what you write and the page, nothing else. We do not ask for contact details.

Page reviewed 6 Nov 2026.