What cookies are
Cookies are small files stored on your device when you visit a website. We follow the UK Privacy and Electronic Communications Regulations (PECR) and UK GDPR: only strictly necessary cookies are set without your consent.
Strictly necessary
- nv_consent: set by this website to remember your cookie choice. Duration: 12 months.
Analytics, only if you accept
- Google Analytics 4 (Google): _ga and _ga_ followed by an identifier. They count visits and show which pages are used. Duration: up to 2 years.
- Microsoft Clarity (Microsoft): _clck, _clsk, CLID and MUID. They show how pages are used, for example clicks and scrolling, so we can improve them. Duration: from 1 day (_clsk) to 1 year.
- We keep analytics data for 26 months. If you reject analytics, these cookies are not set, and any set earlier are removed when you change your choice.
Embedded video
The video on our home page is loaded from YouTube in privacy-enhanced mode (youtube-nocookie.com) only when you click play. YouTube may then set its own cookies. Other videos on this website are hosted with the website and do not set cookies.
Translation, only if you choose a language
The language button at the bottom of each page translates the website with Google Translate. Nothing is loaded from Google until you choose a language other than English. When you do, this website sets the googtrans cookie to remember your language for the session, and Google may set its own cookies. Choose English to remove the cookie and return to the original text. The English version is the reference text.
Your choice
You can accept or reject analytics cookies in the cookie banner, and change your choice at any time from the "Cookie settings" link in the footer. You can also block or delete cookies in your browser settings.
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Last updated: October 2026