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Table of contents § 1, Definitions

Legal

Privacy Policy

Please note: This English translation is provided for convenience only. The German version (Datenschutzerklärung) is the only legally binding text. All statutory references refer to German and EU law.

We are very pleased about your interest in our company. Data protection is of particularly high importance to the management of Teske Systemtechnik Owner: Jan Teske. Use of the websites of Teske Systemtechnik Owner: Jan Teske is generally possible without any indication of personal data. However, if a data subject wishes to make use of special services of our company via our website, processing of personal data may become necessary. If processing of personal data is necessary and there is no legal basis for such processing, we generally obtain the consent of the data subject.

The processing of personal data, such as the name, address, e-mail address, or telephone number of a data subject, is always carried out in accordance with the General Data Protection Regulation (GDPR) and in compliance with the country-specific data protection regulations applicable to Teske Systemtechnik Owner: Jan Teske. By means of this privacy policy, our company wishes to inform the public about the nature, scope, and purpose of the personal data we collect, use, and process. Furthermore, data subjects are informed of the rights to which they are entitled through this privacy policy.

Teske Systemtechnik Owner: Jan Teske has, as the controller, implemented numerous technical and organisational measures to ensure the most complete protection possible of personal data processed via this website. Nevertheless, internet-based data transmissions may in principle have security gaps, so that absolute protection cannot be guaranteed. For this reason, every data subject is free to transmit personal data to us by alternative means, for example by telephone.

1. Definitions

The privacy policy of Teske Systemtechnik Owner: Jan Teske is based on the terminology used by the European legislator for the adoption of the General Data Protection Regulation (GDPR). Our privacy policy should be legible and understandable both for the public and for our customers and business partners. To ensure this, we would like to explain the terminology used in advance.

We use the following terms, among others, in this privacy policy:

a) Personal data

Personal data means any information relating to an identified or identifiable natural person (“data subject"). An identifiable natural person is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, an online identifier, or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural, or social identity of that natural person.

b) Data subject

Data subject means any identified or identifiable natural person whose personal data is processed by the controller.

c) Processing

Processing means any operation or set of operations performed on personal data or on sets of personal data, whether or not by automated means, such as collection, recording, organisation, structuring, storage, adaptation or alteration, retrieval, consultation, use, disclosure by transmission, dissemination or otherwise making available, alignment or combination, restriction, erasure, or destruction.

d) Restriction of processing

Restriction of processing means the marking of stored personal data with the aim of limiting their processing in the future.

e) Profiling

Profiling means any form of automated processing of personal data consisting of the use of personal data to evaluate certain personal aspects relating to a natural person, in particular to analyse or predict aspects concerning that natural person's performance at work, economic situation, health, personal preferences, interests, reliability, behaviour, location, or movements.

f) Pseudonymisation

Pseudonymisation means the processing of personal data in such a manner that the personal data can no longer be attributed to a specific data subject without the use of additional information, provided that such additional information is kept separately and is subject to technical and organisational measures to ensure that the personal data are not attributed to an identified or identifiable natural person.

g) Controller or controller responsible for processing

Controller or controller responsible for processing means the natural or legal person, public authority, agency, or other body which, alone or jointly with others, determines the purposes and means of the processing of personal data. Where the purposes and means of such processing are determined by Union or Member State law, the controller or the specific criteria for its nomination may be provided for by Union or Member State law.

h) Processor

Processor means a natural or legal person, public authority, agency, or other body which processes personal data on behalf of the controller.

i) Recipient

Recipient means a natural or legal person, public authority, agency, or other body to which the personal data are disclosed, whether a third party or not. However, public authorities which may receive personal data in the framework of a particular inquiry under Union or Member State law are not regarded as recipients.

j) Third party

Third party means a natural or legal person, public authority, agency, or body other than the data subject, controller, processor, and persons who, under the direct authority of the controller or processor, are authorised to process personal data.

k) Consent

Consent of the data subject means any freely given, specific, informed, and unambiguous indication of the data subject's wishes by which he or she, by a statement or by a clear affirmative action, signifies agreement to the processing of personal data relating to him or her.

2. Name and address of the controller

The controller for the purposes of the General Data Protection Regulation, other data protection laws applicable in Member States of the European Union, and other provisions related to data protection is:

Teske Systemtechnik Owner: Jan Teske
Elschers Kamp 13
49324 Melle
Germany
Phone: +49 1522 5166058
E-Mail: [email protected]
Website: www.teske-systemtechnik.de

3. Hosting and Content Delivery Network (CDN)

We host the content of our website with the following provider:

GitHub Pages
The provider is GitHub Inc., 88 Colin P Kelly Jr St, San Francisco, CA 94107, USA (hereinafter “GitHub").

When you visit our website, GitHub records your IP address as well as information about the browser and operating system used in so-called server log files. This is technically necessary to deliver the website correctly and securely.

The use of GitHub Pages is based on Art. 6 (1) lit. f GDPR. We have a legitimate interest in presenting our website as reliably as possible. If a corresponding consent has been requested, the processing is carried out exclusively on the basis of Art. 6 (1) lit. a GDPR; consent may be revoked at any time.

Use of Cloudflare (CDN & security)
Additionally, we use the service “Cloudflare" on our website. The provider is Cloudflare Inc., 101 Townsend St., San Francisco, CA 94107, USA (hereinafter “Cloudflare").

Cloudflare offers a globally distributed Content Delivery Network (CDN) with security features. Technically, the data transfer between your browser and our website is routed through Cloudflare's network. This allows us to increase the security of our website (e.g. defence against DDoS attacks) and optimise loading times.

Cloudflare processes IP addresses and metadata of website visitors that are necessary for the provision of the service and its security. We also use Cloudflare Turnstile to defend against bots and automated access (spam protection).

The use of Cloudflare is based on our legitimate interests in secure, trouble-free, and efficient provision of our online offering (Art. 6 (1) lit. f GDPR). We have concluded a data processing addendum with Cloudflare based on the EU Standard Contractual Clauses; in addition, Cloudflare, Inc. is certified under the EU-US Data Privacy Framework. This ensures the protection of your data even when processed in the USA.

For more information on data collection and storage by Cloudflare, see: https://www.cloudflare.com/privacypolicy/

4. Collection of general data and information

The website of Teske Systemtechnik Owner: Jan Teske collects a series of general data and information each time the website is accessed by a data subject or an automated system. This general data and information is stored in the server's log files. The following may be collected: (1) the browser types and versions used, (2) the operating system used by the accessing system, (3) the website from which an accessing system reaches our website (so-called referrers), (4) the sub-websites accessed via an accessing system on our website, (5) the date and time of access to the website, (6) an internet protocol address (IP address), (7) the internet service provider of the accessing system, and (8) other similar data and information used for security purposes in the event of attacks on our information technology systems.

When using this general data and information, Teske Systemtechnik Owner: Jan Teske does not draw any conclusions about the data subject. Rather, this information is needed to (1) deliver the content of our website correctly, (2) optimise the content of our website and its advertising, (3) ensure the long-term operability of our information technology systems and the technology of our website, and (4) provide law enforcement authorities with the information necessary for criminal prosecution in the event of a cyberattack. This anonymously collected data and information is therefore analysed by Teske Systemtechnik Owner: Jan Teske on the one hand statistically and with the aim of increasing data protection and data security in our company, in order to ultimately ensure an optimum level of protection for the personal data we process. The anonymous data of the server log files are stored separately from all personal data provided by a data subject.

5. Contact options via the website & use of Forminit

The website of Teske Systemtechnik Owner: Jan Teske contains, due to legal regulations, information enabling quick electronic contact with our company as well as direct communication with us, which also includes a general address of the so-called electronic mail (e-mail address). If a data subject contacts the controller by e-mail or via a contact form, the personal data transmitted by the data subject are automatically stored.

Use of the service provider Forminit:
We use the Forminit service, operated by UXPLUS LTD (Companies House Registration #11357429, United Kingdom), for our contact form. When you submit the contact form, the data you enter (name, email, message; optionally also: selected service, project name, budget figure, company) is transmitted to Forminit and processed there in order to deliver the email to us. Processing is based on Art. 6 (1) lit. b GDPR (contract initiation) and our legitimate interest in efficient communication (Art. 6 (1) lit. f GDPR).

According to the provider, technical data processing by Forminit takes place encrypted (TLS in transit, AES-256 at rest) in EU data centres (AWS Ireland region). As UXPLUS LTD is established in the United Kingdom, the engagement is additionally based on the European Commission's adequacy decision of 28 June 2021 for the United Kingdom, which finds an adequate level of data protection there within the meaning of the GDPR.

Data Processing Agreement: A written data processing agreement under Art. 28 GDPR has been concluded with UXPLUS LTD (Forminit) dated 21 May 2026. The agreement covers, among other things, processing only on documented instructions, technical and organisational measures under Art. 32 GDPR (ISO-27001-style security framework, AES-256 encryption, TLS transport, least-privilege access control), notification and control of sub-processor changes with a five-day objection right, personal data breach notification, audit rights, as well as return or deletion of data within 60 days of contract termination. A copy of the agreement can be made available on request via [email protected].

Forminit's sub-processors (as of May 2026): Forminit uses the following sub-processors bound by instruction to deliver the service:

  • Amazon Web Services (AWS) — hosting and storage — Ireland (EU)
  • Fathom Analytics — privacy-friendly analytics — EU
  • Intercom — customer service management — USA
  • Pusher — real-time WebSocket communication — EU
  • Sentry — application monitoring and error tracking — EU
  • Stripe — payment processing — Ireland (EU)
  • Typesense — search and indexing infrastructure — EU/United Kingdom

Third-country transfer to the USA (Intercom): For the transfer of personal data to the US sub-processor Intercom, Forminit has executed the EU Standard Contractual Clauses under Implementing Decision (EU) 2021/914 of 4 June 2021 (Module 2: Controller to Processor) as well as the UK Standard Contractual Clauses. Supplementary technical and organisational measures (transport and storage encryption, documented access controls) are intended to ensure a level of protection essentially equivalent to that of the GDPR within the meaning of Art. 44 et seq. GDPR. A copy of the Standard Contractual Clauses can likewise be requested via [email protected].

For further information see forminit.com/gdpr/ and Forminit's privacy policy at forminit.com/privacy-policy/.

Such personal data transmitted voluntarily by a data subject to the controller are stored for the purpose of processing or contacting the data subject. No transmission of this personal data to third parties takes place, except to the processors and their sub-processors mentioned above for technical handling.

6. Links to external profiles and platforms

Our website contains hyperlinks to our public profiles on the third-party platforms listed below. These links serve the purposes of self-presentation, business development, and the verifiability of our professional activities to potential clients:

Technically, these references are ordinary hyperlinks only; we do not embed any iframes, plug-ins, tracking pixels, or other components of the third-party providers into our website. Therefore, merely loading our website does not transmit any personal data to the providers listed above. Only when you actively click one of these links does your browser establish a connection to the respective platform; in doing so, the connection data customary for such requests (in particular IP address, browser type, operating system, and referrer URL) is transmitted to the respective platform operator and processed according to its own rules. We have no influence over this downstream processing.

Because the providers' servers are located in the United States of America, clicking a link may result in the transfer of your data to a third country within the meaning of Art. 44 et seq. GDPR. For details of the respective processing operations, storage periods, and your rights as a data subject, please refer to the privacy policies of the respective providers linked above.

The provision of these links is based on our legitimate interest in an appealing presentation of our company and in verifiable self-representation towards potential clients (Art. 6 (1) lit. f GDPR).

7. Routine erasure and blocking of personal data

The controller processes and stores the personal data of the data subject only for the period necessary to achieve the purpose of storage, or as provided for by the European legislator or another legislator in laws or regulations to which the controller is subject.

If the storage purpose ceases to apply or if a storage period prescribed by the European legislator or another competent legislator expires, the personal data will be routinely blocked or erased in accordance with the statutory provisions.

8. Rights of the data subject

a) Right of confirmation

Each data subject has the right granted by the European legislator to obtain from the controller confirmation as to whether personal data concerning them is being processed. If a data subject wishes to avail themselves of this right of confirmation, they may at any time contact the owner of the controller.

b) Right of access

Each data subject affected by the processing of personal data has the right granted by the European legislator to obtain, free of charge, information about the personal data stored about them at any time and a copy of this information. Furthermore, the European legislator has granted the data subject access to the following information:

  • the purposes of processing
  • the categories of personal data concerned
  • the recipients or categories of recipients to whom the personal data have been or will be disclosed, in particular recipients in third countries or international organisations
  • where possible, the envisaged period for which the personal data will be stored, or, if not possible, the criteria used to determine that period
  • the existence of the right to request from the controller rectification or erasure of personal data, or restriction of processing of personal data concerning the data subject, or to object to such processing
  • the existence of the right to lodge a complaint with a supervisory authority
  • where the personal data are not collected from the data subject: any available information as to their source
  • the existence of automated decision-making, including profiling, referred to in Article 22(1) and (4) GDPR and, at least in those cases, meaningful information about the logic involved, as well as the significance and the envisaged consequences of such processing for the data subject

Furthermore, the data subject has a right of access as to whether personal data have been transferred to a third country or an international organisation. If this is the case, the data subject has the right to be informed of the appropriate safeguards relating to the transfer.

If a data subject wishes to exercise this right of access, they may at any time contact the owner of the controller.

c) Right to rectification

Each data subject affected by the processing of personal data has the right granted by the European legislator to obtain the rectification without undue delay of inaccurate personal data concerning them. Furthermore, the data subject has the right to have incomplete personal data completed, including by means of providing a supplementary statement, taking into account the purposes of the processing.

If a data subject wishes to exercise this right of rectification, they may at any time contact the owner of the controller.

d) Right to erasure (right to be forgotten)

Each data subject affected by the processing of personal data has the right granted by the European legislator to request that the controller erase without undue delay personal data concerning them, if one of the following grounds applies and insofar as processing is not necessary:

  • The personal data were collected or otherwise processed for purposes for which they are no longer necessary.
  • The data subject withdraws consent on which the processing was based according to Art. 6(1)(a) GDPR or Art. 9(2)(a) GDPR, and there is no other legal ground for the processing.
  • The data subject objects to the processing pursuant to Art. 21(1) GDPR and there are no overriding legitimate grounds for the processing, or the data subject objects to the processing pursuant to Art. 21(2) GDPR.
  • The personal data have been unlawfully processed.
  • The personal data must be erased for compliance with a legal obligation in Union or Member State law to which the controller is subject.
  • The personal data have been collected in relation to the offering of information society services referred to in Art. 8(1) GDPR.

If one of the aforementioned reasons applies and a data subject wishes to request the erasure of personal data stored by Teske Systemtechnik Owner: Jan Teske, they may at any time contact the owner of the controller. The owner of Teske Systemtechnik Owner: Jan Teske will ensure that the erasure request is complied with immediately.

Where Teske Systemtechnik Owner: Jan Teske has made the personal data public and is obliged under Art. 17(1) GDPR to erase the personal data, Teske Systemtechnik Owner: Jan Teske shall, taking account of available technology and the cost of implementation, take reasonable steps, including technical measures, to inform other controllers processing the published personal data that the data subject has requested the erasure by those other controllers of any links to, or copies or replications of, those personal data, insofar as processing is not required. The owner of Teske Systemtechnik Owner: Jan Teske will arrange what is necessary on a case-by-case basis.

e) Right to restriction of processing

Each data subject affected by the processing of personal data has the right granted by the European legislator to obtain from the controller restriction of processing where one of the following applies:

  • The accuracy of the personal data is contested by the data subject, for a period enabling the controller to verify the accuracy of the personal data.
  • The processing is unlawful and the data subject opposes the erasure of the personal data and requests the restriction of their use instead.
  • The controller no longer needs the personal data for the purposes of the processing, but they are required by the data subject for the establishment, exercise, or defence of legal claims.
  • The data subject has objected to processing pursuant to Art. 21(1) GDPR pending the verification of whether the legitimate grounds of the controller override those of the data subject.

If one of the aforementioned conditions is met and a data subject wishes to request the restriction of personal data stored by Teske Systemtechnik Owner: Jan Teske, they may at any time contact the owner of the controller. The owner of Teske Systemtechnik Owner: Jan Teske will arrange for the restriction of processing.

f) Right to data portability

Each data subject affected by the processing of personal data has the right granted by the European legislator to receive the personal data concerning them, which were provided by the data subject to a controller, in a structured, commonly used, and machine-readable format. They also have the right to transmit those data to another controller without hindrance from the controller to whom the personal data have been provided, as long as the processing is based on consent pursuant to Art. 6(1)(a) or Art. 9(2)(a) GDPR, or on a contract pursuant to Art. 6(1)(b) GDPR, and the processing is carried out by automated means, as long as the processing is not necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller.

Furthermore, in exercising their right to data portability pursuant to Art. 20(1) GDPR, the data subject has the right to have personal data transmitted directly from one controller to another, where technically feasible and where doing so does not adversely affect the rights and freedoms of others.

To exercise the right to data portability, the data subject may at any time contact the owner of Teske Systemtechnik Owner: Jan Teske.

g) Right to object

Each data subject affected by the processing of personal data has the right granted by the European legislator to object, on grounds relating to their particular situation, at any time, to processing of personal data concerning them based on Art. 6(1)(e) or (f) GDPR. This also applies to profiling based on these provisions.

Teske Systemtechnik Owner: Jan Teske shall no longer process the personal data in the event of the objection, unless we can demonstrate compelling legitimate grounds for the processing which override the interests, rights, and freedoms of the data subject, or for the establishment, exercise, or defence of legal claims.

If Teske Systemtechnik Owner: Jan Teske processes personal data for direct marketing purposes, the data subject has the right to object at any time to the processing of personal data for such marketing. This also applies to profiling to the extent that it is related to such direct marketing. If the data subject objects to Teske Systemtechnik Owner: Jan Teske processing for direct marketing purposes, Teske Systemtechnik Owner: Jan Teske will no longer process the personal data for these purposes.

In addition, the data subject has the right, on grounds relating to their particular situation, to object to processing of personal data concerning them by Teske Systemtechnik Owner: Jan Teske for scientific or historical research purposes, or for statistical purposes pursuant to Art. 89(1) GDPR, unless such processing is necessary for the performance of a task carried out for reasons of public interest.

To exercise the right to object, the data subject may contact the owner of Teske Systemtechnik Owner: Jan Teske directly. In addition, the data subject is free to exercise their right to object, in the context of the use of information society services, notwithstanding Directive 2002/58/EC, by automated means using technical specifications.

h) Automated individual decision-making, including profiling

Each data subject affected by the processing of personal data has the right granted by the European legislator not to be subject to a decision based solely on automated processing, including profiling, which produces legal effects concerning them or similarly significantly affects them, as long as the decision (1) is not necessary for entering into, or the performance of, a contract between the data subject and the controller, or (2) is not authorised by Union or Member State law to which the controller is subject and which also lays down suitable measures to safeguard the data subject's rights and freedoms and legitimate interests, or (3) is not based on the data subject's explicit consent.

If the decision (1) is necessary for entering into, or the performance of, a contract between the data subject and the controller, or (2) it is based on the data subject's explicit consent, Teske Systemtechnik Owner: Jan Teske shall implement suitable measures to safeguard the data subject's rights and freedoms and legitimate interests, at least the right to obtain human intervention on the part of the controller, to express their point of view, and to contest the decision.

If the data subject wishes to exercise the rights concerning automated decision-making, they may at any time contact the owner of the controller.

i) Right to withdraw data protection consent

Each data subject affected by the processing of personal data has the right granted by the European legislator to withdraw their consent to processing of personal data at any time.

If the data subject wishes to exercise the right to withdraw the consent, they may at any time contact the owner of the controller.

j) Right to lodge a complaint with a supervisory authority

Each data subject has the right under Art. 77 GDPR to lodge a complaint with a supervisory authority if they believe that the processing of personal data concerning them violates the GDPR. As a company based in Lower Saxony (Niedersachsen), Germany, the following authority has territorial jurisdiction:

Die Landesbeauftragte für den Datenschutz Niedersachsen (State Commissioner for Data Protection of Lower Saxony)
Prinzenstraße 5
30159 Hannover, Germany
Phone: +49 511 120-4500
Email: [email protected]
Web: lfd.niedersachsen.de

This does not affect the right to lodge a complaint with any other supervisory authority in the Member State of the data subject's habitual residence, place of work, or place of the alleged infringement.

Art. 6(1)(a) GDPR serves as the legal basis for processing operations for which we obtain consent for a specific processing purpose. If the processing of personal data is necessary for the performance of a contract to which the data subject is party, as is the case, for example, with processing operations necessary for the supply of goods or the provision of any other service or consideration, the processing is based on Art. 6(1)(b) GDPR. The same applies to processing operations necessary for carrying out pre-contractual measures, for example in cases of inquiries concerning our products or services. Is our company subject to a legal obligation by which processing of personal data is required, such as for the fulfilment of tax obligations, the processing is based on Art. 6(1)(c) GDPR. In rare cases, the processing of personal data may be necessary to protect the vital interests of the data subject or of another natural person. This would be the case, for example, if a visitor were injured in our premises and their name, age, health insurance data, or other vital information would have to be passed on to a doctor, hospital, or other third party. Then the processing would be based on Art. 6(1)(d) GDPR. Finally, processing operations could be based on Art. 6(1)(f) GDPR. This legal basis is used for processing operations which are not covered by any of the aforementioned legal grounds, if processing is necessary for the purposes of the legitimate interests pursued by our company or by a third party, except where such interests are overridden by the interests or fundamental rights and freedoms of the data subject. Such processing operations are particularly permissible because they have been specifically mentioned by the European legislator. In this respect, the legislator took the view that a legitimate interest could be assumed if the data subject is a customer of the controller (Recital 47 Sentence 2 GDPR).

10. Legitimate interests pursued by the controller or by a third party

Where the processing of personal data is based on Article 6(1)(f) GDPR, our legitimate interest is the conduct of our business activities.

11. Period for which the personal data will be stored

The criterion used to determine the period of storage of personal data is the respective statutory retention period and the necessity for the fulfilment or initiation of a contract. The following specific retention periods apply:

  • Server log files (IP address, browser, referrer, timestamp): generally deleted or anonymised after 7 days, no later than 30 days, unless required for the investigation of security incidents.
  • Contact-form inquiries (name, email, message; optionally service, project, budget, company): stored until the inquiry is closed and for a further 6 months for possible follow-up questions. If a contractual relationship results, the statutory tax and commercial retention periods below apply.
  • Contract data and invoice records: 10 years after the end of the calendar year of contract conclusion or invoicing (§ 147 (1) AO in conjunction with § 257 HGB).
  • Business correspondence: 6 years after the end of the calendar year (§ 257 (4) HGB).
  • Cookies and similar technologies: per their technical lifetime, see § 14 of this policy.

After the periods listed above have expired, the corresponding data are routinely deleted, provided they are no longer needed for the fulfilment or initiation of a contract and no statutory obligation requires further retention.

12. Statutory or contractual provisions on the provision of personal data; necessity for conclusion of contract; obligation of the data subject to provide the personal data; possible consequences of non-provision

We clarify that the provision of personal data is in part required by law (e.g. tax regulations), or may also result from contractual provisions (e.g. information on the contractual partner). Sometimes it may be necessary for the conclusion of a contract that a data subject provides us with personal data, which must then be processed by us. The data subject is, for example, obliged to provide us with personal data when our company signs a contract with them. Non-provision of the personal data would have the consequence that the contract with the data subject could not be concluded. Before personal data is provided by the data subject, the data subject must contact the owner. Our owner clarifies to the data subject on a case-by-case basis whether the provision of the personal data is required by law or contract, or is necessary for the conclusion of the contract, whether there is an obligation to provide the personal data, and the consequences of the non-provision of the personal data.

13. Existence of automated decision-making

As a responsible company, we do not use automated decision-making or profiling.

14. Cookies and similar technologies

This website does not set any first-party cookies of its own and uses no tracking or analytics tools. No cookies are used that would require consent under § 25 (1) TDDDG (German Telecommunications Digital Services Data Protection Act, formerly TTDSG).

On the booking page we additionally use your browser's session storage (sessionStorage) on a purely technical, functional basis: after you return from payment, the key details of your booking are held there briefly to display the confirmation to you. This data stays solely in your browser, is not transmitted to us, and is removed after the confirmation is shown, at the latest when you close the browser tab. No consent is required for this under § 25 (2) no. 2 TDDDG.

Our hosting provider Cloudflare (see § 3) does set its own cookies which serve security, bot mitigation and correct delivery of the site. These are strictly necessary within the meaning of § 25 (2) no. 2 TDDDG; no consent is required. The cookies in particular are:

  • __cf_bm (Cloudflare Bot Management): detects automated access, defends against bot attacks. Retention: 30 minutes from last activity.
  • _cfuvid: ensures requests from the same visitor are routed consistently. Retention: only for the current browser session.
  • cf_clearance (only if a security check was completed): confirms the visitor has passed the bot check. Retention: up to 30 days.

You can disable or delete cookies in your browser settings at any time. Disabling them entirely may limit site functionality.

15. Data Protection Officer

No data protection officer has been appointed because the requirements for mandatory appointment under § 38 (1) BDSG (German Federal Data Protection Act) are not met (no team of more than 20 persons regularly engaged in automated processing of personal data; no processing requiring a data-protection impact assessment under Art. 35 GDPR; no commercial processing of personal data for the purpose of transmission, anonymised transmission, or for market and opinion research).

For all data-protection-related inquiries, questions about the processing of your data, or to exercise your rights as a data subject, please contact: [email protected].

16. Booking, payment (Stripe) and online meetings (Google Meet)

On our website, at /en/booking/, you can book a paid online consultation. As part of the booking we process the data you provide (name, email address, optionally company and phone number, your request, the appointment slot you choose together with your timezone, and, for invoicing, the billing address collected during payment). Providing this data is necessary for entering into and performing the consulting contract; without it we cannot process the booking. This processing is carried out to take pre-contractual steps and to perform the consulting contract on the basis of Art. 6(1)(b) GDPR and, with regard to the statutory retention of invoices, additionally on the basis of Art. 6(1)(c) GDPR.

Processing via our booking backend (Google Cloud Run):
The data you enter in the booking form is transmitted to a server application (backend) operated by us and processed there to match available times against our calendar, initiate the payment and create the appointment. We run this backend on Google Cloud Run, a service of Google Cloud EMEA Limited, Velasco, Clanwilliam Place, Dublin 2, Ireland. The processing and server location is the Frankfurt am Main region (Germany, EU). Processing is carried out to take pre-contractual steps and to perform the contract on the basis of Art. 6(1)(b) GDPR. Insofar as a transfer to Google LLC in the USA occurs, it is based on the EU Standard Contractual Clauses under Implementing Decision (EU) 2021/914 and the EU-US Data Privacy Framework. For this processing on our behalf, a data processing agreement with Google pursuant to Art. 28 GDPR is in place (Google Cloud Data Processing Addendum).

Payment and invoice via Stripe:
To collect payment for the booked consultation we use the payment service provider Stripe. The controller for users within the European Economic Area is Stripe Payments Europe, Limited, 1 Grand Canal Street Lower, Grand Canal Dock, Dublin, Ireland. When you complete a paid booking you are redirected to Stripe for payment; the payment data you enter there (e.g. card or account details) is processed exclusively by Stripe and is never accessible to us. For invoicing, Stripe collects your billing address on our behalf and creates an invoice that is made available to you and sent by email. From Stripe we receive confirmation of the payment status, your billing address and the generated invoice; we retain this invoice-related data to comply with statutory retention obligations (cf. § 14 UStG, § 147 AO; see section 11). Processing is carried out for the performance of the contract under Art. 6(1)(b) GDPR and to comply with a legal obligation under Art. 6(1)(c) GDPR. In this context Stripe acts partly as our processor (e.g. for invoice creation), for which a data processing agreement pursuant to Art. 28 GDPR is in place, and partly as an independent controller: for its own purposes such as fraud prevention, securing payment transactions and compliance with legal and regulatory obligations, Stripe decides on the processing on its own responsibility, over which we have no influence. For details see Stripe's privacy policy at stripe.com/privacy.

Third-country transfer (Stripe): Stripe may transfer personal data to Stripe, Inc. in the United States. Stripe bases this transfer on the EU Standard Contractual Clauses under Implementing Decision (EU) 2021/914; Stripe, Inc. is also certified under the EU-US Data Privacy Framework. This is intended to ensure a level of data protection adequate within the meaning of Art. 44 et seq. GDPR.

Calendar entry and video meeting (Google):
The booked appointment is created in our calendar (Google Calendar) and the consultation takes place as a video conference via Google Meet. The provider is Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland. For this purpose your name, email address, request, optionally company and phone number, and the appointment are transmitted to Google and added to the calendar entry; you receive a calendar invitation with the link to the video meeting. During the meeting Google processes the connection and usage data required to run the video conference. Processing is based on Art. 6(1)(b) GDPR. A transfer to the USA (Google LLC) may also occur here, based on the EU Standard Contractual Clauses and the EU-US Data Privacy Framework. More information: policies.google.com/privacy.

17. Customer reviews via ProvenExpert (rating seal)

On our website, currently on the homepage, we embed a rating widget ("rating seal") from the review platform ProvenExpert in order to display our genuine customer reviews. The provider is Expert Systems AG, Quedlinburger Straße 1, 10589 Berlin, Germany.

When you open a page with the embedded rating seal, your browser automatically establishes a connection to ProvenExpert's servers in order to load the widget's content (rating score, stars and link). In doing so, your IP address is transmitted to ProvenExpert; for technical reasons, ProvenExpert also receives standard connection data such as browser type and time of access. The transmission of the IP address is technically necessary so that the widget's content can be delivered to your browser.

The purpose of the processing is the appealing and transparent presentation of the customer reviews actually submitted about us. The legal basis is our legitimate interest in an effective presentation of these reviews pursuant to Art. 6(1)(f) GDPR. The provider is based in Germany (EU); no transfer of personal data to a third country takes place in this context. For more information on data processing by ProvenExpert, see the provider's privacy policy at provenexpert.com/de-de/datenschutzbestimmungen.

Version of this privacy policy: June 2026

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