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Cookie Policy
Last updated: August 2026
This cookie policy explains which cookies and similar technologies (e.g. localStorage) are used on grafcet.io, for what purpose, and how you can change your choices at any time.
What are cookies?
Cookies are small text files that a browser stores locally when you visit a website. They allow, for example, a session to be maintained, language settings to be remembered, or usage statistics to be measured. The browser’s localStorage and sessionStorage work in a similar way.
Categories
- Essential — strictly required to operate the site, no consent needed.
- Preferences — store language, theme or similar settings.
- Statistics — anonymous usage analysis, only after consent.
- Marketing/third-party — third-party content (e.g. embedded videos), only after consent.
Cookies and storage keys in use
| Name | Provider | Purpose | Duration | Category |
|---|---|---|---|---|
| sb-* | Supabase (EU) | Login session, cloud storage | Session / 1 year | Essential |
| CookieConsent | Cybot/Cookiebot (EU) | Stores your consent choices | 12 months | Essential |
| NEXT_LOCALE | grafcet.io | Stores the selected language (page routing) | 12 months | Essential |
| grafcet-* / grafcet_* (localStorage) | grafcet.io | Current GRAFCET, language setting, theme, onboarding status | Until deleted | Preferences |
| ph_*, __posthog | PostHog (EU) | Anonymous usage analysis (only after consent) | 12 months | Statistics |
| VISITOR_INFO1_LIVE, YSC | Google/YouTube (youtube-nocookie.com) | Set only when playing embedded videos (click-to-load) | up to 6 months / session | Marketing |
How consent works
On your first visit, a banner appears. Essential cookies run immediately; all others only after your active consent. If you decline, statistics and marketing cookies are blocked. Even without consent, a purely anonymous, cookieless reach measurement (page views) takes place without accessing your device — see the Privacy Policy for details.
Change your settings
You can revise your cookie choices at any time: via the “Cookie settings” link in the footer.
Questions?
Questions? Email hi@grafcet.io.