Transparency & trackers

Cookie policy

Courtesy translation
This translation is provided to make reading easier. Only the French version is authoritative: if there is any difference, the French version applies.

What is a cookie?
A cookie is a small text file placed on your device (computer, smartphone, tablet) when you visit our site. It makes it possible to remember information about your browsing.

1. Cookies used on this site

1.1. Essential cookies (mandatory)

These cookies are essential for the site to work. They cannot be switched off.

Name	Purpose	Duration
`csrftoken`	Protection against CSRF attacks (form security)	1 year
`sessionid`	Keeping your session and your simulations	Session (until the browser is closed)
`cookieConsent`	Remembering your consent preferences (localStorage)	Persistent (localStorage)

1.2. Analytics cookies (optional)

These cookies let us measure audience and improve our services. They are only placed with your consent.

Service	Purpose	Duration
Google Analytics (if enabled)	Analysis of traffic and browsing behaviour (anonymised data)	13 months

Note: Google Analytics is only enabled if you click “Accept all” or if you turn on analytics cookies using the “Customise” button. If you refuse, no analytics cookie is placed.

1.3. Messaging / chat cookies (optional)

These cookies make our online chat tool work (support and contact). They are only placed with your consent.

Service	Purpose	Duration
Brevo Conversations (if enabled)	Online chat: continuity of the conversation, identification of the visitor and notifications	Persistent (set by Brevo)

Note: The Brevo Conversations chat is provided by Brevo (Sendinblue SAS), a French company. It is only loaded if you click “Accept all” or turn on optional cookies using “Customise”. If you refuse, the chat widget is not loaded and no associated cookie is placed. Details of the trackers are in Brevo's privacy policy.

2. Legal basis

Essential cookies: Legitimate interest (art. 6.1.f GDPR), necessary for the service requested
Analytics cookies: Consent (art. 6.1.a GDPR), collected through the banner
Messaging / chat cookies: Consent (art. 6.1.a GDPR), collected through the banner

3. Managing your preferences

You can change your preferences at any time:

Through our banner

Delete cookieConsent from your localStorage to show the consent banner again.

Through your browser

You can set your browser to refuse or delete cookies at any time.

Settings by browser

Chrome: Settings › Privacy and security › Cookies
Firefox: Settings › Privacy & Security
Safari: Preferences › Privacy
Edge: Settings › Cookies and site permissions

Warning: Deleting the essential cookies (sessionid, csrftoken) can disrupt the way the site works and cause you to lose the simulations in progress.

4. Transfers outside the EU

Google Analytics may transfer data to the United States. This transfer is governed by the standard contractual clauses approved by the European Commission and by the DPF (Data Privacy Framework) mechanism.

The essential cookies (sessionid, csrftoken) are processed only on our servers in the EU (Hetzner, Germany).

The Brevo Conversations chat is provided by Brevo (Sendinblue SAS), a French company that hosts its data within the European Union.

5. Your rights

In accordance with the GDPR and the French Data Protection Act (loi Informatique et Libertés), you have the right to access, rectify, erase and object to the processing of your data.

To exercise your rights:
Contact us at contact@calcul-solaire.fr
You can also lodge a complaint with the CNIL (the French data protection authority).

For more information, see our Privacy Policy.

6. Changes to the policy

We may update this policy to reflect legal or technical developments. The date of the last update below shows the version in force. In the event of a substantial change, the consent banner will be shown again.