Privacy policy
1. Name and contact information of the data controller
Stefan Lenhof
Boxhagener Str. 65
10245 Berlin
hello@lenhof.works
2. Collection and processing of personal data
I only collect and process personal data when you provide it voluntarily: when you write to me through the contact form on the main page, send me an email or book a call. The data collected includes:
- Name (to personalise communication)
- Email address (for responses)
- What you write in your message
The contact form sends your name, your email address and your message through this website’s server to me by email. None of it is stored on the server. This data is not shared with third parties and is used solely for communication regarding your enquiry. Booking a call and hosting work differently: see sections 5 and 7.
3. Purpose and legal basis for processing
The collection and processing of personal data is based on Art. 6(1)(f) GDPR (legitimate interest): to respond to enquiries and manage communications.
4. Cookies and tracking
This website sets no cookies and uses no analytics or tracking. Fonts and all other files come from this website’s server. Until you select a day or press an arrow in the booking calendar, your browser makes no requests to third parties.
5. Booking a call
Nothing from Cal.com is loaded with this page. The booking calendar shows the current month without available times. When you first select a day or press an arrow, your browser asks Cal.com (api.cal.com) for my available times in the month shown. This request contains the date range and the time zone set in your browser. Each press of an arrow asks for the month it shows. After that, picking a day or a time sends nothing.
When you press “Book”, your browser sends your name, your email address, your time zone, the language “en” and the time you picked to Cal.com, which books the call. What you enter to book a call goes to Cal.com and to me.
Like every request from a browser, these requests carry your IP address, your browser type and language, and the address of this website. They carry no cookies, and the cookie in Cal.com’s response is not stored. Nothing else is loaded from Cal.com or from anyone else. If Cal.com does not respond, you see a link to my booking page on cal.com. Cal.com’s privacy policy: cal.com/privacy
6. Data retention
Email enquiries are stored until the conversation is complete or no longer necessary. You may request deletion of your personal data at any time.
7. Hosting
Uberspace (Jonas Pasche, Mainz, Germany) hosts this website. Privacy policy: uberspace.de/privacy
The provider may collect server logs (IP address, browser type, time of access) for security reasons. I have no control over this data processing.
8. Your rights under GDPR
As a visitor to this website, you have the right to:
- request access to your stored data (Art. 15 GDPR),
- request correction or deletion of your data (Art. 16 and 17 GDPR),
- object to data processing based on legitimate interests (Art. 21 GDPR).
For any enquiries, write to hello@lenhof.works.
9. Data security
I take reasonable measures to protect personal data from unauthorised access. However, data transmission over the internet (e.g. emails) can have security vulnerabilities.
10. Updates to this privacy policy
This privacy policy may be updated periodically. The latest version is always available on this website.
Last updated: 9 November 2026