Cookie Policy
We use the bare minimum. Statistics are only switched on with your permission.
What are cookies?
They are small files stored on your device when you visit a website. We also use your browser's local storage to remember your preferences.
Cookies and storage we use
| Name | Type | Purpose | Duration |
|---|---|---|---|
| csrftoken | Essential | Protects forms against forged requests | 1 year |
| sessionid | Essential | Management area session and confirmation messages | Session / 8 hours |
| op-a11y (local storage) | Preference | Remembers the accessibility options you chose | Until you clear it |
| op-consent (local storage) | Preference | Remembers your choice about statistics cookies | 180 days |
| _ga, _ga_* | Statistics (optional) | Google Analytics: aggregate measurement of how the site is used | Up to 14 months |
Statistics cookies are only set if you press "Accept". If you decline, nothing is sent to Google.
Changing your choice
You can change your mind at any time with the button below or the "Cookie preferences" link in the footer. You can also delete cookies in your browser settings.
Last updated: 6 October 2026