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Privacy

Last updated: November 2026

Data controller

Thomas Zumbrunnen
Schellenackerstrasse 16A
CH-5400 Baden
Switzerland

[email protected]

This website

The website consists of static pages. It uses no analytics or advertising services and loads no fonts from third-party servers. The pages themselves set no cookies.

Hosting and Cloudflare

The website is hosted by cyon in Basel, Switzerland. All traffic passes through Cloudflare, Inc. (USA) first, which protects and speeds up the connection. Cloudflare and the web server process technically necessary data such as your IP address, the time of access, the page requested and your browser, so that the website can be operated securely. Cloudflare may also process this data in the USA and participates in the Swiss-U.S. Data Privacy Framework. Cloudflare adds a small script to the pages that protects email addresses from spam, and it may receive error reports from your browser.

Cloudflare generally stores this data for up to 30 days. The web server deletes its access logs daily and keeps only aggregated statistics.

Light and dark mode

If you switch modes, your browser remembers your choice. It stays on your device and is not transmitted.

Contact by email

If you email us, your address and message are used only to reply to you. The mailbox is also hosted by cyon.

Links to other websites

Links to whatwatt and Regionalwerke Baden lead to third-party websites, whose own privacy policies apply.

The wattlensi app

wattlensi runs on your own server. Your readings are never sent to the operators of this website.

Your rights

You can request access to your data and have it corrected or deleted. To do so, email [email protected].