LEGAL

Privacy policy

This notice gives a plain overview of what happens to your personal data when you visit this website. Personal data is any data by which you can be personally identified. The site is operated from Germany, so the EU General Data Protection Regulation (GDPR) applies regardless of where you visit from.

1. Controller

The controller for data processing on this website is:

Darko Konrad
Atzelbergstraße 110
60389 Frankfurt am Main
Germany

Phone: +49 175 5259510
Email: kontakt@krisen-rechner.de

2. Hosting (Vercel)

This website is hosted by Vercel Inc., 340 S Lemon Ave #4133, Walnut, CA 91789, USA ("Vercel"). When you visit the site, Vercel automatically processes information your browser transmits in server log files, in particular:

  • IP address
  • date and time of the request
  • referrer URL
  • requested file and transferred data volume
  • browser type and version, operating system

The legal basis is Art. 6 (1) (f) GDPR (legitimate interest in a secure, stable and functioning delivery of the website). As Vercel may also process data in the USA, the transfer is based on the EU standard contractual clauses under Art. 46 (2) (c) GDPR and the EU-US Data Privacy Framework. A data processing agreement under Art. 28 GDPR is in place with Vercel. Server log files are stored for a maximum of 30 days and then deleted automatically.

More information: vercel.com/legal/privacy-policy

3. Web analytics (Umami)

For audience measurement I use Umami Analytics, a service of Umami Software, Inc., 1362 42nd Ave, San Francisco, CA 94122, USA ("Umami"). Umami sets no cookies, collects no personal data and builds no user profiles. Only aggregated visit statistics are recorded (page views, referrer, anonymized country of origin, browser and device type). IP addresses are not stored permanently. URL parameters (the part of an address after the ?) are not recorded.

The legal basis is Art. 6 (1) (f) GDPR (legitimate interest in privacy-friendly audience measurement). As processing may take place via Umami Cloud in the USA, the transfer is based on the EU standard contractual clauses under Art. 46 (2) (c) GDPR and, where certified, the EU-US Data Privacy Framework. A data processing agreement under Art. 28 GDPR is in place with Umami Software, Inc.

More information: umami.is/privacy

4. Email hosting (IONOS)

My mailbox (kontakt@krisen-rechner.de) is hosted by IONOS SE, Elgendorfer Straße 57, 56410 Montabaur, Germany. If you communicate with me by email, the content of your message is delivered via IONOS servers and stored in my mailbox.

The legal basis is Art. 6 (1) (f) GDPR, or Art. 6 (1) (b) GDPR for pre-contractual enquiries. A data processing agreement under Art. 28 GDPR is in place with IONOS. Processing takes place in the EU.

More information: ionos.de/terms-gtc/terms-privacy

5. Cookies and tracking

This website uses no tracking cookies, no marketing pixels and no third-party embeds such as YouTube or Google Maps. Fonts are served by this website itself; no connection to Google Fonts or other font services is made. The English edition contains no affiliate links.

Umami Analytics (section 3) sets no cookies.

6. Calculators

The interactive calculators on this site run entirely in your browser. Your inputs are not transmitted to a server and not stored in cookies or browser storage. As soon as you leave the page, the inputs are gone.

7. Your rights

With regard to your personal data you have the following rights at any time:

  • right of access (Art. 15 GDPR)
  • right to rectification (Art. 16 GDPR)
  • right to erasure (Art. 17 GDPR)
  • right to restriction of processing (Art. 18 GDPR)
  • right to data portability (Art. 20 GDPR)
  • right to object (Art. 21 GDPR)
  • right to withdraw consent with effect for the future (Art. 7 (3) GDPR)

To exercise your rights, an informal message to kontakt@krisen-rechner.de is sufficient.

8. Right to lodge a complaint with a supervisory authority

Without prejudice to any other remedy, you have the right to lodge a complaint with a data protection supervisory authority (Art. 77 GDPR). Competent is in particular the supervisory authority of your place of residence or the authority responsible for me:

The Hessian Commissioner for Data Protection and Freedom of Information
Postfach 3163, 65021 Wiesbaden, Germany
datenschutz.hessen.de

9. SSL/TLS encryption

For security reasons and to protect the transmission of confidential content, this website uses SSL/TLS encryption. You can recognise an encrypted connection by the address bar starting with "https://" and the lock symbol in your browser.

10. AI-generated images

Some images on this website were created or edited with the help of artificial intelligence (illustrative images). They serve illustration purposes only and do not depict real persons, places or events. No personal data of users is processed in this context.

11. Changes to this privacy policy

I reserve the right to amend this privacy policy so that it always meets current legal requirements or to reflect changes to my services. The current version applies to your next visit.

Last updated: October 2026