4 min read
Privacy Policy

1. Controller

Tobias Leinss Blumenstr. 73 73033 Göppingen Germany

Email: inquiry@leinss.xyz

2. Data Processing Overview

This website is a personal portfolio and blog. We process as little personal data as possible.

2.1 Hosting

This website is hosted on GitHub Pages. When you visit, GitHub may process your IP address and technical metadata as part of delivering the page. See GitHub’s privacy statement for details.

Legal basis: Art. 6 Abs. 1 lit. f DSGVO (legitimate interest in providing the website).

2.2 Analytics

We use Umami Analytics (self-hosted) in cookieless mode. Umami does not use cookies, does not store your IP address, and does not collect personally identifiable information. It records:

  • Page views (anonymized)
  • Referrer URL
  • Browser and device type
  • Country (derived from IP, IP itself is not stored)

Legal basis: Art. 6 Abs. 1 lit. f DSGVO (legitimate interest in understanding website usage).

2.3 Contact via Email

If you contact us via email, we store your email address and message content to process your inquiry. This data is deleted once the inquiry is resolved, unless legal retention obligations apply.

Legal basis: Art. 6 Abs. 1 lit. b DSGVO (pre-contractual measures) or Art. 6 Abs. 1 lit. f DSGVO (legitimate interest).

2.4 Newsletter

If you subscribe to our newsletter, we store your email address on our self-hosted Listmonk instance (hosted in Germany). We use double opt-in — you must confirm your subscription via email before receiving any newsletters.

Data processed:

  • Email address
  • Subscription date and confirmation status

Your email is used solely for sending occasional newsletter updates. We do not share it with third parties. You can unsubscribe at any time via the link in every email, or by contacting us at inquiry@leinss.xyz.

Legal basis: Art. 6 Abs. 1 lit. a DSGVO (consent via double opt-in).

2.5 Local Storage

This website stores your theme preference (light/dark mode) in your browser’s localStorage. This is purely functional, does not leave your device, and is not transmitted to any server.

3. Cookies

This website does not use cookies. No cookie consent banner is required (TDDDG / ePrivacy Directive).

4. No Data Sharing

We do not sell, trade, or share your personal data with third parties, except as required for hosting (GitHub Pages) and as described above.

5. Your Rights (DSGVO)

You have the right to:

  • Access (Art. 15 DSGVO) — what data we store about you
  • Rectification (Art. 16 DSGVO) — correction of inaccurate data
  • Erasure (Art. 17 DSGVO) — deletion of your data
  • Restriction (Art. 18 DSGVO) — restriction of processing
  • Data portability (Art. 20 DSGVO) — export of your data
  • Objection (Art. 21 DSGVO) — object to processing based on legitimate interest

Contact: inquiry@leinss.xyz

6. Right to Complain

You have the right to lodge a complaint with a data protection supervisory authority, e.g.:

Der Landesbeauftragte für den Datenschutz und die Informationsfreiheit Baden-Württemberg Lautenschlagerstraße 20 70173 Stuttgart https://www.baden-wuerttemberg.datenschutz.de

7. Changes

We may update this privacy policy as needed. The current version is always available on this page.