Privacy policy

1. Controller

ZUENTEC Engineering
Controller: Eckehard Zündorf
Lilienweg 2, 96215 Lichtenfels, Germany
E-mail: office@zuentec.de

2. Hosting and server log data

This website is hosted on our behalf by STRATO GmbH, Otto-Ostrowski-Straße 7, 10249 Berlin, Germany (processing on our behalf). When you visit the pages, the web server automatically processes technically necessary data in server log files. This includes in particular the IP address of the requesting device, the date and time of the request, the page or file requested, the amount of data transferred, the message confirming a successful request and — where transmitted by the browser — the previously visited page (referrer) and information on browser type and operating system.

The purposes of this processing are delivering the pages, the secure and stable operation of the website, error analysis, and the detection, prevention and investigation of attacks. The legal basis is Art. 6(1)(f) GDPR; our legitimate interest lies in the secure, reliable and technically functional operation of the website.

The log data is stored only for as long as is necessary for these purposes and is then deleted or anonymised. Non-anonymised IP addresses are retained for a limited period solely to detect and defend against attacks.

Requests made by the ORDNA software. From version 0.30.0 the ORDNA program on your computer can check whether a newer version of the program is available on this website; it requests the file version.json for that purpose and, if you ask it to, downloads the installation package. This check is switched off by default and only takes place if you enable it in the settings or use Check now there. No information about you or your documents is transmitted. The same server log data arises as when a page is requested — your IP address in particular — with the same purposes, the same legal basis and the same retention period as described above.

Counting of downloads. If you download a file from this website — currently only the ORDNA installation package — we log that request in order to determine the number of downloads. What is stored is the time, the file name, the previously visited page (referrer), the browser identification (user agent) and a pseudonymous identifier. That identifier is a shortened hash of your IP address and a secret addition; the IP address itself is not stored, and the addition changes every month — beyond one month, not even we can recognise anyone. The identifier serves solely to avoid counting the same request twice. The legal basis is Art. 6(1)(f) GDPR; our legitimate interest lies in learning how widely our software is used and whether this website serves its purpose. No combination with other data takes place, no profiles are created and no third-party service is involved — the counting runs on the same web space as this page. The individual entries are erased after twelve months; what remains is only the number of downloads per file and month.

3. Contact by e-mail

If you contact us by e-mail, we process the data arising from this: your e-mail address, your name (where provided), the content of the message, the time of the communication and any further details you provide voluntarily.

Where the contact serves the initiation or performance of a contract — for example questions about purchasing or using our software — the legal basis is Art. 6(1)(b) GDPR. For other enquiries the legal basis is Art. 6(1)(f) GDPR; our legitimate interest lies in handling and answering incoming enquiries and in communicating with prospective customers, users and business partners.

The data is erased as soon as it is no longer required for handling the enquiry and neither statutory retention obligations — for example for business or tax-relevant correspondence — nor other legitimate grounds require further storage.

4. Cookies, tracking and local storage in the browser

This website uses no cookies, no analytics or marketing trackers and no third-party audience-measurement services. You are not recognised across page views; the only exception is the counting of downloads described under number 2, which recognises a repeated request for the same file within 30 minutes as a repetition, without identifying you. The password-protected evaluation page for that counting, which only we ourselves open, uses a technically necessary session cookie; it does not arise when you visit this website.

If you choose a display mode (light, dark or system) via the “Appearance” menu in the header bar, this choice is stored exclusively in your own browser (localStorage) and is not transmitted to us. This storage is strictly necessary to provide the display function you have expressly requested (Section 25(2) no. 2 of the German TDDDG); no consent is required for it. Nothing is stored without your active choice.

5. Voluntary contributions via PayPal

On the ORDNA page there is a button that leads to a PayPal donation dialogue. The button artwork comes from PayPal but is served from our own server; nothing is embedded from PayPal servers, in particular no tracking pixel. Merely visiting the page therefore transmits no data to PayPal. Only when you activate the button do you leave our website; your details are then processed by PayPal (Europe) S.à r.l. et Cie, S.C.A., 22–24 Boulevard Royal, L-2449 Luxembourg, under its own privacy policy.

If you make a contribution, we receive transaction details from PayPal — that is, not collected directly from you (information pursuant to Art. 14 GDPR; source: PayPal): name, e-mail address, amount, date and time, transaction reference and payment status. The purpose is attributing and accounting for your contribution; the legal basis is Art. 6(1)(b) GDPR (processing of the contribution initiated by you). We store these details for as long as they are needed to attribute and evidence the contribution and, where tax-law retention obligations apply, for their statutory duration.

6. Recipients of personal data

Recipients are STRATO GmbH as hosting provider (on our behalf) and — only if you use the donation dialogue — PayPal. Beyond that, we pass on personal data only where we are legally obliged to do so.

7. Transfers to third countries

Hosting takes place in Germany; merely visiting this website does not cause us to transfer data to countries outside the EU or the EEA. PayPal is based in Luxembourg but may, in the course of payment processing, also transfer data to group companies in third countries (in particular the USA); details and the safeguards provided by PayPal can be found in PayPal's privacy policy.

8. Provision of personal data

Merely to visit this website you are under no statutory or contractual obligation to provide personal data — apart from the connection data your browser transmits for technical reasons. When contacting us you must provide at least the contact details needed for a reply; without them we may be unable to handle or answer your enquiry. When a contribution or contract is processed, certain details may be required to carry out the respective transaction.

9. Your rights

Subject to the statutory conditions, you have the right of access (Art. 15 GDPR) and the rights to rectification (Art. 16 GDPR), erasure (Art. 17 GDPR), restriction of processing (Art. 18 GDPR) and data portability (Art. 20 GDPR). For data protection enquiries you can reach us at office@zuentec.de.

You also have the right to lodge a complaint with a data protection supervisory authority (Art. 77 GDPR) — for example the authority of your habitual residence. The authority responsible for us is the Bavarian State Office for Data Protection Supervision (Bayerisches Landesamt für Datenschutzaufsicht, BayLDA), Promenade 18, 91522 Ansbach, Germany, www.lda.bayern.de.

10. No automated decision-making

No automated decision-making, including profiling, takes place.

German original dated: 13.08.2026