When you use this website, various personal data is collected. Personal data is data that can be used to identify you personally. This privacy policy explains what data we collect and what we use it for. It also explains how and for what purpose this is done. We would like to point out that data transmission over the Internet (e.g. when communicating by email) may be subject to security vulnerabilities. Complete protection of data against access by third parties is not possible.
The controller pursuant to the EU General Data Protection Regulation (GDPR) is:
CASTFAST GmbH
Mombacher Str. 68
55122 Mainz
Phone: +49 (0) 6131 960700
The controller is the natural or legal person who alone or jointly with others determines the purposes and means of the processing of personal data (e.g. names, email addresses, etc.). You can contact our data protection officer at: anfrage@castfast.de or at our postal address with the addition “Data Protection Officer”.
Within the framework of the applicable legal provisions, you have the right to free information about your stored personal data, its origin and recipient and the purpose of the data processing and, if necessary, a right to correction, blocking or deletion of this data at any time. You can contact us at any time at the address given in the legal notice if you have further questions on the subject of personal data.
You have the right to have data that we process automatically on the basis of your consent or in fulfillment of a contract handed over to you or to a third party in a common, machine-readable format. If you request the direct transfer of the data to another controller, this will only take place if it is technically feasible.
Many data processing operations are only possible with your express consent. You can withdraw your consent at any time. All you need to do is send us an informal e-mail. The legality of the data processing carried out until the revocation remains unaffected by the revocation.
In the event of breaches of data protection law, the data subject has the right to lodge a complaint with the competent supervisory authority. The competent supervisory authority for data protection issues is the state data protection officer of the federal state in which our company is based. A list of data protection officers and their contact details can be found at the following link: https://www.bfdi.bund.de/DE/Infothek/Anschriften_Links/anschriften_links-node.html.
We hereby object to the use of contact data published as part of our obligation to provide a legal notice for the purpose of sending unsolicited advertising and information material. The operators of this website expressly reserve the right to take legal action in the event of the unsolicited sending of advertising information, such as spam e-mails.
On our websites we offer you links to websites that may be of interest to you, over whose content we have no influence. We assume no liability for this external content. The linked pages were checked for possible legal violations at the time the link was created. Such were not recognizable at the time the link was set. However, constant monitoring of the content of the linked pages is not reasonable without concrete evidence of an infringement. As soon as we become aware of any legal infringements on the linked websites, we will remove the relevant links immediately.
We collect, process and use personal data only insofar as it is necessary for the establishment, content or modification of the legal relationship (inventory data). This is done on the basis of Art. 6 para. 1 lit. b GDPR, which permits the processing of data for the fulfillment of a contract or pre-contractual measures. We collect, process and use personal data about the use of our website (usage data) only insofar as this is necessary to enable or charge the user for the use of the service. The customer data collected will be deleted after completion of the order or termination of the business relationship. Statutory retention periods remain unaffected.
The provider of the pages automatically collects and stores information in so-called server log files, which your browser automatically transmits to us. These are
This data is not merged with other data sources. The basis for data processing in order to display our website to you and to ensure stability and security is Art. 6 para. 1 lit. f GDPR.
Some of the Internet pages use so-called cookies. Cookies do not damage your computer and do not contain viruses. Cookies are used to make our website more user-friendly, effective and secure. Cookies are small text files that are stored on your computer and saved by your browser.
Most of the cookies we use are so-called “session cookies”. They are automatically deleted at the end of your visit. Other cookies remain stored on your end device until you delete them. These cookies enable us to recognize your browser on your next visit. You can set your browser so that you are informed about the setting of cookies and only allow cookies in individual cases, exclude the acceptance of cookies for certain cases or in general and activate the automatic deletion of cookies when closing the browser. If cookies are deactivated, the functionality of this website may be restricted. Cookies that are required to carry out the electronic communication process or to provide certain functions that you have requested (e.g. inquiry function) are stored on the basis of Art. 6 para. 1 lit. f GDPR. The website operator has a legitimate interest in the storage of cookies for the technically error-free and optimized provision of its services. Insofar as other cookies (e.g. cookies to analyze your surfing behavior) are stored, these are treated separately in this privacy policy.
We use the “Real Cookie Banner” consent tool to manage the cookies and similar technologies used (tracking pixels, web beacons, etc.) and related consents. Details on how “Real Cookie Banner” works can be found at https://devowl.io/de/rcb/datenverarbeitung/
The legal basis for the processing of personal data in this context is Art. 6 para. 1 lit. c GDPR and Art. 6 para. 1 lit. f GDPR. Our legitimate interest is the management of the cookies and similar technologies used and the related consents.
The provision of personal data is neither contractually required nor necessary for the conclusion of a contract. You are not obliged to provide the personal data. If you do not provide the personal data, we will not be able to manage your consent.
If you send us inquiries via the contact form, your details from the inquiry form, including the contact details you provide there, will be stored by us for the purpose of processing the inquiry and in the event of follow-up questions. We will not pass on this data without your consent. We use the WPForms Lite plugin to provide the contact form, which enables us to receive and process your inquiries securely and reliably. The data entered in the contact form is therefore processed exclusively on the basis of your consent (Art. 6 para. 1 lit. a GDPR). You can revoke this consent at any time. All you need to do is send us an informal email. The legality of the data processing operations carried out until the revocation remains unaffected by the revocation. We will retain the data you provide on the contact form until you request its deletion, revoke your consent for its storage, or the purpose for its storage no longer pertains (e.g. after fulfilling your request). Mandatory statutory provisions – in particular retention periods – remain unaffected.
If you send us an inquiry via the quotation calculator, your details from the inquiry form, including the contact details you provide there, will be stored by us for the purpose of processing the inquiry and in the event of follow-up questions. We will not pass on this data without your consent. The data entered in the form is therefore processed exclusively on the basis of your consent (Art. 6 para. 1 lit. a GDPR). You can revoke this consent at any time. All you need to do is send us an informal email. The legality of the data processing operations carried out until the revocation remains unaffected by the revocation. We will retain the data you provide on the contact form until you request its deletion, revoke your consent for its storage, or the purpose for its storage no longer pertains (e.g. after fulfilling your request). Mandatory statutory provisions – in particular retention periods – remain unaffected.
We use the WP Mail SMTP plugin for the technical handling of sending emails. This plugin enables us to send emails via third-party servers (e.g. Gmail, SendGrid) to ensure reliable communication. This may result in personal data being transmitted to these external email services.
On our website, we offer the option of subscribing to our free newsletter. In order to be able to send you the newsletter, we collect some data via the form as part of the registration process. The following information is requested:
In addition, when registering for the newsletter, some technical information and consent data are collected for security and documentation of the registration:
We use Site Kit from Google, a plugin that integrates various Google services on our website. These services help us to understand user behavior, improve website performance and optimize marketing measures. The services relevant to data protection law and their functions are described below.
This website uses functions of the web analysis service Google Analytics. The provider is Google Inc, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA. Google Analytics uses so-called “cookies”. These are text files that are stored on your computer and enable your use of the website to be analyzed. The information generated by the cookie about your use of this website is usually transmitted to a Google server in the USA and stored there. The storage of Google Analytics cookies is based on Art. 6 para. 1 lit. f GDPR. The website operator has a legitimate interest in the analysis of user behavior in order to optimize both its website and its advertising.
You can prevent the collection of your data by Google Analytics by clicking on the following link. An opt-out cookie will be set to prevent your data from being collected on future visits to this website: Deactivate Google Analytics. You can find more information on how Google Analytics handles user data in Google’s privacy policy: https://support.google.com/analytics/answer/6004245?hl=de.
In addition to the Google services listed above, we also use the online advertising program Google Ads. Google Ads gives us the opportunity to display and analyze our ads in a targeted manner. If you reach our website via a Google ad, Google places a so-called “conversion cookie” on your device. This cookie is specific to each Google Ads customer and does not enable tracking across the websites of different Google Ads customers. The information collected using the cookie is used to create conversion statistics that show how many users have clicked on our ad and performed a specific action on our website (e.g. a purchase or registration). These statistics are anonymous and do not provide us with any personal identification information about the user.
In addition, we use Google Remarketing technologies, which enable us to display interest-based advertising to visitors to our website on other websites in the Google Partner Network. Cookies are used to analyze behavior on our website and provide targeted advertising that may match your interests. The use of Google Remarketing is based on your consent in accordance with Art. 6 para. 1 lit. a GDPR and § 25 para. 1 TTDSG.
If you have consented to Google linking your web and app browsing history to your Google Account and using this information to personalize ads, Google will use this data to enable cross-device retargeting. If you are logged in to Google while visiting our website, Google combines your usage data from our website with the information from your Google account to create target groups for cross-device advertising campaigns. Your data stored by Google is temporarily linked with the usage data from our website in order to create customized target group lists.
We have activated the IP anonymization function on this website. This means that your IP address will be shortened by Google within member states of the European Union or in other contracting states of the Agreement on the European Economic Area before being transmitted to the USA. Only in exceptional cases will the full IP address be transmitted to a Google server in the USA and shortened there. Google will use this information on behalf of the operator of this website for the purpose of evaluating your use of the website, compiling reports on website activity and providing other services relating to website activity and internet usage to the website operator. The IP address transmitted by your browser as part of Google Analytics will not be merged with other Google data.
You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website. You can also prevent Google from collecting the data generated by the cookie and relating to your use of the website (including your IP address) and from processing this data by Google by downloading and installing the browser plug-in available at the following link: https://tools.google.com/dlpage/gaoptout?hl=de.
We use services from PostHog, Inc. to analyze user behavior on our website in order to improve the user experience and the functionality of our website. PostHog allows us to track and evaluate interactions such as click behavior, scrolling and time spent on individual pages through DVR-like screen recordings. This information helps us to better understand how our website is used and which areas can be optimized. PostHog’s collection and use of information about you as a customer is governed by PostHog’s Privacy Policy, which is available at the following link: https://posthog.com/privacy.
You can prevent the collection of your data by PostHog by adjusting your cookie settings here and revoking your consent to data processing by PostHog. This will prevent the collection of your data on future visits to this website.
© 2025 All Rights Reserved.