# CookiesWhat cookies we use (if any) and how to control them.

## Short version

Pronix is a static website. We **do not use tracking cookies or
advertising cookies**. For aggregate visit statistics, our
self-hosted Matomo instance sets two small first-party cookies
— DNT is honored server-side, the IP is /16-anonymized.
Alongside that there are two strictly-necessary technical
cookies for language preference and theme.

## Cookies we may set

| Cookie | Purpose | Lifetime |
|---|---|---|
| Language preference | Remembers your chosen UI language between visits | Up to 1 year |
| Theme (light/dark) | Remembers your chosen color theme | Up to 1 year |
| `_pk_id.3.*` | Matomo visitor ID (first-party, no personal identifier) | ~13 months |
| `_pk_ses.3.*` | Matomo session cookie (first-party) | 30 minutes |

All of these are **first-party**, set only by this site, and
contain no personal identifier. The first two are technically
necessary. The Matomo cookies rely on **legitimate interest**
(GDPR Art. 6 (1) f) — since DNT is honored server-side, the IP
is anonymized, and there is no cross-site reach, the setup is
minimally invasive and, by common supervisory-authority
practice, does not require prior consent.

## Cookies we do not set

- **No third-party analytics.** No Google Analytics, no
  Plausible, no Fathom, no Cloudflare Analytics. Our own Matomo
  cookies — see the table above.
- **No advertising or remarketing cookies.**
- **No social-media tracking cookies.** We do not embed share
  buttons that load third-party tracking.
- **No fingerprinting.** We do not run scripts to identify you
  across visits without cookies.

## Third-party scripts

The site loads no third-party scripts that could set cookies on
their own behalf. No CDN-hosted analytics, no embedded videos
from tracking platforms, no chat widgets.

## Controlling cookies

Matomo cookies are only set if your browser does not send the
Do-Not-Track header. **DNT enabled → no tracking, no Matomo
cookies.** If you want to opt out anyway: block the Matomo
domain (`stats.pronix.info`) in your browser, or delete the
cookies manually — every browser offers controls for this
under "Settings → Privacy" or equivalent.

## Changes to this policy

We may update this policy. The `lastmod` date at the top of the
file reflects the most recent change. Material changes will be
noted prominently on the site for a reasonable period.

## Contact

Questions about cookies on this site:
[hello@pronix.info](mailto:hello@pronix.info)