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lysen.dev

Privacy Policy

Last updated: 19 April 2026

1. Data Controller

Vitaly Lysen — vitaly@lysen.dev
France

2. Data Collected and Purposes

a) Analytics (Umami)

This site uses Umami Analytics, a self-hosted solution on analytics.lysen.dev. Umami sets no cookies and does not track users across sessions. Data collected: page URL, referrer, screen resolution, browser, OS, estimated country (via anonymised IP). IP addresses are hashed and never stored in plain text.

  • Purpose: anonymous audience measurement
  • Legal basis: legitimate interest (GDPR Art. 6.1.f) — no tracking cookies
  • Retention: 12 months rolling

b) Error Monitoring (Sentry)

This site uses Sentry for technical error monitoring. Sentry may collect: error messages, stack traces, browser and OS information, and potentially IP addresses. Transmission of personally identifiable data (sendDefaultPii) is disabled.

  • Purpose: debugging and site stability
  • Legal basis: legitimate interest (GDPR Art. 6.1.f)
  • Processor: Sentry (Functional Software, Inc.) — privacy policy
  • Retention: 90 days

3. Cookies

This site uses no tracking or advertising cookies. Umami Analytics sets no cookies.

4. Data Sharing

No personal data is sold, rented or transferred to third parties for commercial purposes. Data may be transmitted to the technical processors listed above (Sentry) strictly within the scope of their services.

5. International Data Transfers

Sentry (Functional Software, Inc.) is a US-based company. Transfers of data to the United States are governed by Standard Contractual Clauses (SCCs) adopted by the European Commission pursuant to GDPR Article 46.2(c). For more information, see Sentry's privacy policy.

6. Your Rights (GDPR)

Under GDPR (Regulation EU 2016/679), you have the following rights:

  • Right of access — obtain a copy of data held about you
  • Right of rectification — correct inaccurate data
  • Right to erasure — request deletion of your data
  • Right to restriction of processing
  • Right to object — object to processing based on legitimate interest
  • Right to data portability

To exercise your rights, contact: vitaly@lysen.dev
You may also file a complaint with the CNIL (French data protection authority).

7. Security

Appropriate technical and organisational measures are implemented to protect your data against unauthorised access, loss or alteration.

8. Changes

This policy may be updated. The last modification date is shown at the top of this page.