Privacy policy

1. Controller and contact

Rhein Köster GmbH, Carl-Zeiss-Ring 12, 85737 Ismaning, Germany, is responsible for the processing of personal data through this website. For privacy questions or requests, contact kontakt@rhein-koester.com or +49 (0)89 52038671.

2. Website hosting and technical access data

This website uses Wix for hosting, content delivery and website functions. When a page is accessed, technical data such as an IP address, request time, browser and device information may be processed to deliver the website, maintain its operation and protect against misuse. The legal basis for these purposes is Article 6(1)(f) GDPR: our legitimate interest in operating a secure and accessible business website.

Wix.com Ltd., Israel, processes website visitor data and uses service providers for its platform. Processing and international transfers are governed by the applicable Wix data-processing arrangements. Depending on the recipient and location, an adequacy decision or other safeguards, including standard contractual clauses, may apply. Details of the relevant providers and safeguards are available in the Wix privacy policy and data-processing documentation.

The browser also contacts the Wix content-delivery infrastructure and technical logging services, including frog.wix.com and panorama.wixapps.net. These services receive operational data such as page addresses, browser language, loading times and session identifiers for diagnostics and monitoring of the platform. Technical connections can occur before a cookie choice and after optional categories have been rejected. Rejecting optional analytics or advertising does not mean that no technical data is transmitted.

3. Project enquiries and correspondence

If you contact us through the enquiry form or by email, we process the contact details, organisation information and project requirements you provide to assess and respond to your request. Wix Forms and associated submission and contact-management functions are used to receive and manage form enquiries. Authorised personnel handling the enquiry may access these details.

Where the enquiry concerns a contract with you, the legal basis is Article 6(1)(b) GDPR. For business enquiries made on behalf of an organisation, the legal basis is Article 6(1)(f) GDPR: our legitimate interest in managing business communications. Processing required by a legal obligation is based on Article 6(1)(c) GDPR.

Required form fields identify the information needed to respond. Other information is voluntary. You can contact us by email or telephone if you prefer. Please avoid including sensitive personal data or confidential third-party information that is unnecessary for the enquiry.

Submitting the form sends your entries over HTTPS to the form service on our website. They are stored in Wix Forms and made available to the staff handling your enquiry, including through email notifications to our sales team. Submitting an enquiry does not subscribe you to marketing communications.

4. Spam protection

Our contact form uses Wix Forms spam protection to distinguish genuine enquiries from automated abuse. This protection can include Google reCAPTCHA; the checks triggered depend on the technical circumstances and risk assessment. Technical connection and device data, such as IP address and browser information, and interaction signals may be analysed for this purpose. The legal basis for processing personal data for this security purpose is Article 6(1)(f) GDPR: our legitimate interest in a secure, available enquiry service and protection against spam and misuse.

Wix and the service providers involved process the data for these security checks. Under the reCAPTCHA terms effective from 2 April 2026, Google processes customer data as a processor for security, fraud and abuse prevention, rather than for personalised advertising. Processing may take place outside the EEA; the safeguards described in section 2 and the applicable data processing agreements apply. Details are available in the reCAPTCHA data processing information and the Wix Data Processing Agreement.

reCAPTCHA can use the _GRECAPTCHA security cookie when executed. Device storage and access are subject to the separate rules in section 5. We do not use the form protection for advertising or to identify anonymous visitors for sales purposes. If the protection prevents you from submitting a genuine enquiry, please email sales@rhein-koester.com or call +49 (0)89 52038671. Providing your email address is necessary for a reply; the phone number is optional.

5. Cookies and similar technologies

Cookies and similar technologies may be used for website security, session handling and platform functions. Storage or access that is strictly necessary for a service explicitly requested by you does not require consent under Section 25(2) TDDDG. Any personal-data processing remains subject to an appropriate GDPR legal basis.

Optional analytics, advertising or other non-essential storage and access require consent where applicable under Section 25(1) TDDDG and Article 6(1)(a) GDPR. We use Usercentrics for Wix to present cookie choices and record your consent preferences. These preferences are used to apply your choices and document consent. You can reject optional technologies or change your choice through the privacy control displayed on the website. Information about the services covered by the banner is shown in its settings. Browser settings also allow you to limit or delete cookies; this can affect website functions.

The Wix service description in the consent settings is a general description of the provider and includes possible uses of its platform. Listing Wix as essential does not make optional analytics, personalisation or advertising technically necessary. Necessary website delivery and security are described in section 2. Optional purposes are separate from these functions and are subject to the relevant consent choices. Rejecting optional categories does not prevent you from browsing our product information or sending an enquiry.

Browser storage includes security and session cookies such as XSRF-TOKEN, hs, server-session-bind, client-session-bind and svSession, as well as __cf_bm for bot protection and ssr-caching for page delivery. The consent-policy cookie and the local-storage entries ucData and ucString record consent settings. Wix also uses fedops.logger.sessionId in local storage for technical diagnostics. Session cookies expire with the browser session; other entries persist according to their configured lifetime or until cleared. In our technical check on 13 November 2026, consent-policy had a one-year expiry and svSession had an approximately 400-day expiry. Browser settings may shorten these periods. Further provider information is available in Wix’s cookie documentation.

6. Images, video and fonts

Equipment photographs, the website font and the native video player are delivered through the Wix website infrastructure. Technical connection data may be processed when these resources are requested. The homepage video may start automatically without sound when it enters the visible area. Playback controls allow you to pause the video. These resources support the presentation of our technical systems and services.

7. Retention and recipients

Enquiry data is retained for the period needed to handle the request, any resulting business relationship and applicable legal retention or claims periods. Technical and security data is subject to the retention arrangements of the relevant service provider. Data may be processed by hosting, communication and technical service providers, or disclosed where a legal obligation requires it.

8. Your rights

Subject to the applicable legal conditions, you have rights of access, rectification, erasure, restriction of processing and data portability. You may object to processing based on legitimate interests on grounds relating to your particular situation, and to processing for direct marketing at any time. Where processing relies on consent, you may withdraw it with effect for the future.

Contact kontakt@rhein-koester.com to exercise your rights. You also have the right to lodge a complaint with a data-protection supervisory authority, particularly in the country of your habitual residence, workplace or the alleged infringement.

9. Updates

We update this policy when website functions or relevant processing arrangements change. The current version is provided on this page.