Cookies are small files stored in your browser. We only use the following:
| Cookie | Purpose | Type | Duration |
|---|---|---|---|
_web_core_session | Website operation (session, form security) | Essential | Until you close the browser |
cookie_consent | Remembering your choice in the cookie notice | Essential | 1 year |
theme | Remembering light/dark mode, if you change it | Preference | 1 year |
ahoy_visitor, ahoy_visit | Visit statistics | Statistics, only with consent | 2 years / 4 hours |
| Google reCAPTCHA | Protecting the contact form against spam (contact page only) | Security | Set by Google |
We also count page views without cookies, anonymously and in aggregate (see the Privacy Policy).
How to change your choice
Delete this site's cookies in your browser settings: the notice will appear again on your next visit. You can also block cookies in your browser, but some features (such as the contact form) may stop working.
Last updated: October 10, 2026