Cookie policy

Last updated: 1 October 2026

What is a cookie?

A cookie is a small file stored on your device when you visit a website, used for example to remember browsing preferences or to measure audience.

Cookies and trackers used on this website

This website uses no advertising cookies.

Strictly necessary (no consent required)

  • NEXT_LOCALE (nationdatacenter.fr) — remembers the display language. Duration: session.
  • didomi_token and related cookies (Didomi) — remember your cookie choices. Duration: [to be checked in the Didomi console].
  • Online assistant — the conversation is kept in the browser (session storage) for 30 minutes of inactivity.

Audience measurement (Piano Analytics)

  • _pcid, _pctx, _pprv (nationdatacenter.fr) — Duration: 13 months.

Without your consent, measurement runs in exempt mode, in line with the CNIL’s recommendations: strictly anonymous statistics, with no cross-referencing with other processing and no transfer to third parties. If you accept Piano in the cookie manager, full measurement is enabled.

You can opt out of audience measurement on this browser at any time.

Third-party content (with your consent)

  • YouTube and Vimeo — videos on the Documentation page are only loaded once you agree (in the cookie manager or when starting the video). These platforms may then set their own cookies.

The forms’ anti-bot protection is hosted on our own servers: it sets no cookies and sends no data to third parties.

Managing your choices

You can change your choices at any time: manage my cookies (also available at the bottom of every page). You can also delete cookies in your browser settings.

Contact

For any question, see the privacy policy.