This is a personal blog of Radek Gruchalski. This privacy policy explains how the collected personal data collected is used.

§what data is collected?


This website collects email addresses of the users who explicitly subscribe to the newsletter present on article pages.

The newsletter is handled with MailChimp, a service provided by:

The Rocket Science Group, LLC
675 Ponce de Leon Ave NE
Suite 5000
Atlanta, GA 30308 USA

The information you provide is stored only for the purpose of newsletter processing and is never shared or sold to any third party.


This website uses Google Analytics but it respects your Do Not Track settings, uses IP address anonymization and localStorage instead of cookies for analytics client ID storage.

§CDN contents

The blog uses jsDelivr CDN for JavaScript resources. The jsDelivr privacy policy is available here.

§how is the data collected?

You explicitly provide the data collected during the newsletter sign up process.

In order to be signed up, you are required to confirm the choice via link sent to your email address provided during the subscription process.

The final email confirming your subscription contains the web address which you can use to unsubscribe from the newsletter at any time.

§how is the data used?

The data is collected only for the purpose of newsletter processing and is not shared or sold to any third party.


You can choose to opt out from the newsletter at any time. The information you have provided will be removed from the newsletter processing list within a reasonable time but no longer than 14 days from the moment you have decided to unsubscribe. The data may be preserved for a longer period of time by the MailChimp service.

To find out more, please review the Privacy Policy of the MailChimp service, section 3 and relevant.


This website does not use cookies.

§how to contact me

If you have any questions, you can contact, Radek Gruchalski, directly via:

  • email address:
  • post: Hermesstrasse 39, 52156 Monschau, Germany
  • call: +49 2472 6084960