Legal
A cookie is a small text file the site leaves in your browser so it can remember something. Some are essential, others are optional. Here is exactly which, and why.
Last updated: January 2026
They make the site work and cannot be switched off. No third-party tracking data is stored in them.
The site cannot function correctly without them.
We measure anonymised data to find out which pages genuinely help. No advertising tracking, no profiling, no resale of data.
Some services we use — booking appointments, for instance — set their own cookies. Their use is governed by their own privacy policies, which we don't control.
You can delete cookies at any time from your browser settings, and you can block optional cookies. The site stays usable, but some preferences reset on every visit.
Session cookies are cleared when you close the browser or after eight hours of inactivity. The language cookie lasts up to a year. Audience measurement cookies are kept for thirteen months at most.