Imprint & Privacy.

Imprint

Information per § 5 TMG (German Telemedia Act)

Contact

Email: [email protected]

Responsible for content

Jan Kaluza (address as above)

Disclaimer

CYJAN IDS is free, open-source software released under the MIT License and is provided without warranty. Content on this site is curated with care, but no liability is accepted for accuracy, completeness, or timeliness.

External links on this page (e.g. to GitHub) lead to third-party content. The respective provider is solely responsible for that content and any data processing involved.

Privacy Notice

1. Controller

The controller in the sense of the GDPR is Jan Kaluza; address and contact details see Imprint.

2. What this site is

www.cyjan.dev is a pure information site about the open-source project CYJAN IDS. There is no sign-up, no tracking, no advertising, no cookies, no analytics.

3. Server logs (Cloudflare)

The site is delivered via the content-delivery network of Cloudflare, Inc. When a page is fetched, technically necessary data is processed:

• IP address (truncated/anonymised by Cloudflare)
• Date and time of the request
• Requested URL and HTTP status code
• Referer and user-agent (browser type / OS)

Legal basis is Art. 6 (1) (f) GDPR (legitimate interest in stable, secure operation). Cloudflare acts as a processor and may, depending on visitor location, transfer data to the United States. See Cloudflare's notice at cloudflare.com/privacypolicy.

4. Version badge via GitHub API

The hero on the home page fetches the latest release tag from the public GitHub API (api.github.com/repos/JxxKal/ids/releases/latest). GitHub, Inc., USA, sees your IP address and user-agent for this request. Only the tag name is processed and shown in your browser; nothing is stored on this side. Legal basis Art. 6 (1) (f) GDPR.

5. Self-hosted fonts

Inter and JetBrains Mono are served from this server. No data is transferred to Google Fonts, Adobe, or other third parties for typography.

6. External links

This site links to external services (notably GitHub, demo.cyjan.dev). Once you click an external link, the privacy terms of the respective provider apply; I have no control over their content or processing.

7. Cookies, analytics, advertising

None. No cookies are set, no tracking, no profiling, no re-targeting, no advertising IDs.

8. Encryption

Access is HTTPS-only with an HSTS header. Content is additionally restricted by a strict Content-Security-Policy.

9. Your rights

Under the GDPR you have the right to information (Art. 15), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20), and objection (Art. 21). Since no personal data beyond the technically necessary items above is stored or further processed, most of these rights are practically moot — but a request to [email protected] is enough.

10. Right to lodge a complaint

You may lodge a complaint with the competent supervisory authority. For Hamburg: the Hamburg Commissioner for Data Protection and Freedom of Information, datenschutz-hamburg.de.

11. Last updated

This notice is current as of April 2026. Material changes will be reflected here.