Last updated: March 1, 2026
1. What is a Cookie?
A cookie is a small text file placed on your device (computer, smartphone, tablet) when you visit a website. It allows the website to remember your preferences, track your browsing behavior, and improve your user experience.
Cookies do not contain malicious programs and cannot access your device's data.
2. Types of Cookies Used
| Type |
Purpose |
Duration |
Required |
| Essential Cookies |
Website functionality, security, user session |
Session |
Yes |
| Preference Cookies |
Storage of language, theme and settings |
1 year |
No |
| Analytics Cookies |
Audience measurement, pages visited, time spent (anonymized) |
13 months |
No |
| Marketing Cookies |
Ad personalization, remarketing |
6 months |
No |
3. Cookie Details
- PHPSESSID — PHP session identifier, necessary for website operation. Expires when browser is closed.
- csrf_token — Protection against CSRF attacks on forms. Expires when browser is closed.
- cookie_consent — Stores your cookie preferences. Duration: 12 months.
- lang — User selected language (en, fr, de, it). Duration: 1 year.
- currency — Preferred currency (CHF, EUR, USD, GBP). Duration: 1 year.
- _ga / _gid — Google Analytics: anonymized audience measurement (page views, visit duration, traffic source). Duration: 13 months / 24h.
- _gat — Google Analytics: request rate limiting. Duration: 1 minute.
Collected data is anonymized and does not allow personal identification.
- _fbp — Facebook Pixel: conversion tracking and remarketing. Duration: 3 months.
- _gcl_au — Google Ads: advertising conversion tracking. Duration: 3 months.
These cookies are only set with your explicit consent.
4. Managing Your Cookies
You can change your cookie preferences at any time:
Consent Banner
On your first visit, a banner allows you to accept or refuse non-essential cookies. You can change your choices at any time.
Browser Settings
You can configure your browser to block or delete cookies:
Warning: Disabling certain cookies may affect website functionality and limit access to some features (forms, calculator, language preferences).
5. Third-Party Cookies
Some cookies are placed by third-party services we use. These services have their own privacy policies:
- Google Analytics — Audience measurement (Google Policy)
- Bootstrap CDN — CSS framework (no cookies set)
- Chart.js — Interactive charts (no cookies set)
6. Legal Basis
In accordance with the General Data Protection Regulation (GDPR) and the Swiss Federal Act on Data Protection (FADP):
- Essential cookies are placed based on our legitimate interest (website operation).
- Preference, analytics and marketing cookies require your explicit consent.
- You can withdraw your consent at any time without affecting the lawfulness of processing based on consent before its withdrawal.
7. Retention Period
Cookies are stored for the duration indicated in the table above. After this period, they are automatically deleted. Your consent choice is kept for 12 months, after which the banner will be displayed to you again.
8. Your Rights
Under GDPR and FADP, you have the following rights:
Right to data portability
Right to withdraw consent
9. Contact
For any questions regarding our use of cookies or to exercise your rights, please contact us:
This cookie policy may be changed at any time. We will inform you of any significant changes via a notification on the website.