Privacy Policy

Last updated: June 2026

This privacy policy describes how QuietWindow Co. (operating quietwindowco.eu) handles information in connection with your use of this website. This is a static informational site with no user accounts, no registration, and no e-commerce functionality.

1. Data Controller

The operator of this website is QuietWindow Co., reachable at info@quietwindowco.eu. As this site does not collect personal data in the normal course of operation, no formal data protection officer appointment applies under Article 37 GDPR. Questions regarding data processing can be directed to the contact address above.

2. Data We Collect

2.1 Server Log Files

Like all websites, this site generates server log files that may contain:

IP address of the requesting device
Date and time of the request
URL of the requested page
HTTP response code
Browser type and operating system (from the User-Agent header)
Referrer URL (if provided)

Server logs are retained for a limited period for technical and security purposes and are not used to identify individual users. The legal basis is Article 6(1)(f) GDPR — legitimate interest in maintaining website security and stability.

2.2 Contact Form

The contact form on the About page simulates submission on the client side only. No data entered into this form is transmitted to or stored on any server. The form uses JavaScript local simulation to display a confirmation message. No email is sent and no data is processed or retained by the website operator.

2.3 Local Storage

This website uses browser local storage to save your cookie banner preference (accepted or rejected). This data is stored in your browser only and is not transmitted to any server. It persists until you clear your browser storage. No tracking occurs through this mechanism.

3. Cookies

This website does not set any cookies. The cookie banner preference is stored in localStorage, not in an HTTP cookie. No third-party tracking, analytics, or advertising cookies are used.

4. Third-Party Content

4.1 Google Fonts

This site loads the Inter typeface from Google Fonts via a CSS import. When your browser requests this resource, Google's servers receive your IP address and browser information. Google Fonts requests are made over HTTPS. For information on how Google processes this data, refer to Google's Privacy Policy.

4.2 Wikimedia Commons Images

Images on this site are loaded directly from Wikimedia Commons servers (upload.wikimedia.org). When your browser loads these images, Wikimedia's servers receive your IP address and browser information. For details, refer to the Wikimedia Foundation Privacy Policy.

5. Your Rights Under GDPR

As a user in the European Union (including Germany), you have rights under the General Data Protection Regulation (GDPR) including:

Right of access (Article 15) — to obtain information about personal data we process about you
Right to rectification (Article 16) — to correct inaccurate personal data
Right to erasure (Article 17) — to request deletion of your personal data
Right to object (Article 21) — to object to processing based on legitimate interest
Right to lodge a complaint with a supervisory authority — in Germany, this is the Bundesdatenschutzbeauftragter (BfDI) or the relevant Landesdatenschutzbehörde

Since we do not process personal data beyond server logs, most of these rights have limited practical application in relation to this website. Contact us at info@quietwindowco.eu for any data protection inquiries.

6. External Links

This site contains links to external resources including DIN, Umweltbundesamt, and other reference sources. These external sites have their own privacy policies. QuietWindow Co. is not responsible for the data practices of external sites.

7. Changes to This Policy

This policy may be updated from time to time to reflect changes in how the site operates. The date at the top of this page indicates the most recent revision. Continued use of the site after any update constitutes acceptance of the revised policy.