Privacy Policy

1. An overview of data protection

General

The following gives a simple overview of what happens to your personal information when you visit our website. Personal information is any data with which you could be personally identified. Detailed information on the subject of data protection can be found in our privacy policy found below.

Data collection on our website

Who is responsible for the data collection on this website?

The data collected on this website are processed by the website operator. The operator's contact details can be found in the website's required legal notice.

How do we collect your data?

Some data are collected when you provide it to us. This could, for example, be data you enter on a contact form.

Other data are collected automatically by our IT systems when you visit the website. These data are primarily technical data such as the browser and operating system you are using or when you accessed the page. These data are collected automatically as soon as you enter our website.

What do we use your data for?

Part of the data is collected to ensure the proper functioning of the website. Other data can be used to analyze how visitors use the site.

What rights do you have regarding your data?

You always have the right to request information about your stored data, its origin, its recipients, and the purpose of its collection at no charge. You also have the right to request that it be corrected, blocked, or deleted. You can contact us at any time using the address given in the legal notice if you have further questions about the issue of privacy and data protection. You may also, of course, file a complaint with the competent regulatory authorities.

2. General information and mandatory information

Data protection

The operators of this website take the protection of your personal data very seriously. We treat your personal data as confidential and in accordance with the statutory data protection regulations and this privacy policy.

If you use this website, various pieces of personal data will be collected. Personal information is any data with which you could be personally identified. This privacy policy explains what information we collect and what we use it for. It also explains how and for what purpose this happens.

Please note that data transmitted via the internet (e.g. via email communication) may be subject to security breaches. Complete protection of your data from third-party access is not possible.

Notice concerning the party responsible for this website

The party responsible for processing data on this website is:

Oliver Kiessler
Sterrenhofweg 31
50858 Cologne
Germany

Telephone: +49 (0) 221 95490120

The responsible party is the natural or legal person who alone or jointly with others decides on the purposes and means of processing personal data (names, email addresses, etc.).

Revocation of your consent to the processing of your data

Many data processing operations are only possible with your express consent. You may revoke your consent at any time with future effect. An informal email making this request is sufficient. The data processed before we receive your request may still be legally processed.

SSL or TLS encryption

This site uses SSL or TLS encryption for security reasons (provided by Let's Encrypt) and for the protection of the transmission of confidential content, such as the inquiries you send to us as the site operator. You can recognize an encrypted connection in your browser's address line when it changes from "http://" to "https://" and the lock icon is displayed in your browser's address bar.

If SSL or TLS encryption is activated, the data you transfer to us cannot be read by third parties.

Opposition to promotional emails

We hereby expressly prohibit the use of contact data published in the context of website legal notice requirements with regard to sending promotional and informational materials not expressly requested. The website operator reserves the right to take specific legal action if unsolicited advertising material, such as email spam, is received.

3. Hosting and Data Collection

This page doesn't use cookies.

This website is hosted on GitHub Pages (GitHub Inc., 88 Colin P Kelly Jr St, San Francisco, CA 94107, USA). GitHub is certified under the EU-US Data Privacy Framework (as of August 2025, note: the legal validity of the framework is uncertain due to political developments).

When you visit this website, the following data is automatically transmitted to GitHub:

  • IP address
  • Date and time of access
  • Pages accessed
  • Browser type and version used
  • Referrer URL (page you came from)

This data is used for the technical provision of the website. The legal basis is Art. 6 (1) (f) GDPR (legitimate interest). Our legitimate interest lies in the proper provision of our website.

For more information about GitHub's privacy practices, please see: https://docs.github.com/en/site-policy/privacy-policies/github-privacy-statement