Privacy policy

With the following statements, I inform you about the handling of personal data on this website. In the following, I explain why I collect personal data, what data I collect and what rights you have with regard to this data.

The person responsible for processing personal data is: Michael Silies, c/o Nachtmann & Silies GbR, Venloer Str. 725a, 50827 Köln.

Use of personal data

When visitors post comments on the website, data is collected that is displayed in the comment form, as well as the visitor’s IP address and user agent string (this identifies the browser) to help detect spam.

An anonymised string (also called a hash) may be created from your email address and passed to the Gravatar service to check if you are using it. The privacy policy of the Gravatar service can be viewed here: After your comment has been approved, your profile picture will be publicly visible in the context of your comment.

Contact form 

If you contact me via my contact form, your name and email address will be transmitted to me in encrypted form. I treat your contact details confidentially and only store them to get in touch with you.

Collection of technically necessary data

When using this website, I collect technically necessary data that is automatically transmitted to the server, this includes the IP address, date and time of the request, content of the request, access status / status code, browser and browser version used and the operating system. 


When you write a comment on my website, this may be consent to store your name, email address and website in cookies. This is a convenience feature so that when you write another comment you do not have to re-enter all the data. These cookies are stored for one year.

You can delete stored cookies at any time via the settings of your web browser. You can also set that no cookies are stored if you do not wish this. This may affect the usability of my website. 

Embedded content from other websites

Embedded content from other websites behaves exactly as if the visitor had visited the other website.

These websites may collect information about you, use cookies, embed additional third party tracking services and record your interaction with this embedded content, including your interaction with the embedded content if you have an account and are logged into this website.

Google Analytics

This website uses the “Google Analytics” service. Google Analytics is provided by Google Inc. (1600 Amphitheatre Parkway Mountain View, CA 94043, USA) and is used to analyse website usage by users. The service uses “cookies” – text files that are stored on your terminal device. The information collected by the cookies is usually sent to a Google server in the USA and stored there.

IP anonymisation is used on this website. The IP address of the user is shortened within the member states of the EU and the European Economic Area. This shortening eliminates the personal reference of your IP address. As part of the data sharing agreement that the website operators have concluded with Google Inc., Google Inc. uses the collected information to evaluate website usage and website activity and provides services related to internet usage.

You have the option of preventing the cookie from being stored on your device by making the appropriate settings in your browser. It is not guaranteed that you will be able to access all functions of this website without restrictions if your browser does not allow cookies.

Furthermore, you can use a browser plug-in to prevent the information collected by cookies (including your IP address) from being sent to and used by Google Inc. 

The following link will take you to the corresponding plugin:

Here you will find further information on data use by Google Inc.:

Your data rights

If you have posted comments on this website, you may request an export of your personal data to me, including any data you have provided to me. In addition, you can request the deletion of all personal data that I have stored about you. This does not include data that I have to keep due to administrative, legal or security needs.

Your legal rights include the right to information (e.g. whether I use personal data and what it looks like), the right to correct and/or complete your data, the right to erasure, the right to restrict processing (e.g. if in your opinion your data is inaccurate), the right to data portability and the right to object. Finally, you also have the right to revoke your consent under data protection law (with effect for the future, not for the past).