Cookies & Local Storage
How GrantCortex stores data in your browser.
The short version
The GrantCortex website sets no advertising cookies, tracking cookies, or third-party analytics cookies. We do not use Google Analytics, Meta Pixel, Hotjar, or similar tracking software. We measure site traffic with a self-hosted, cookieless tool — details below.
Browser storage (localStorage)
We use two functional localStorage keys. These are stored exclusively in your browser — they are never sent to the server and never shared with third parties.
| Key | Purpose | Duration | Type |
|---|---|---|---|
| gcx-lang | Your language preference (en/hu). | Persists until you clear localStorage. | Functional |
| gcx-cookie-ack | Remembers that you dismissed the cookie/storage notice bar, so it is not shown again. | Persists until you clear localStorage. | Functional |
Session cookies (for signing in)
For signed-in accounts we set two first-party, strictly necessary cookies. Neither is used for advertising or tracking.
| Key | Purpose | Duration | Type |
|---|---|---|---|
| gc_web_session | Your login session identifier (HttpOnly — not readable from JavaScript). Only created when you sign in. | Until the session expires or you sign out. | Necessary |
| gc_web_csrf | CSRF protection: verifies account actions against request forgery. | Tied to the session. | Necessary |
Visitor analytics (cookieless)
We measure site traffic with a self-hosted, privacy-friendly Umami analytics instance running on our own EU server. It sets no cookies and stores nothing in your browser; it does not follow you across other websites and shares no data with third parties. We only see aggregate statistics: page views, approximate location (country/region/city level), referrer, device and browser type. Raw IP addresses are not stored — visitors are distinguished by a monthly-rotating, irreversible technical identifier (page views within one visit are linked by an hourly-rotating identifier). We honour your browser’s “Do Not Track” signal: when it is enabled, the measurement script does not even load.
No cookie consent banner?
Because we only use functional localStorage, strictly necessary first-party cookies and cookieless, anonymous visitor analytics — no third-party or tracking cookies — a cookie consent banner is not currently required under GDPR/ePrivacy. If we ever introduce cookie-based analytics or advertising technology, this policy and the consent flow will be updated (opt-in).
How to clear localStorage
- Chrome / Edge: DevTools (F12) → Application → Storage → Local Storage → right-click → Clear
- Firefox: DevTools (F12) → Storage → Local Storage → right-click → Delete All
- Safari: Develop → Web Inspector → Storage → Local Storage → delete
- Or clear all site data from your browser Settings → Privacy.
Contact
Questions: info@grantcortex.eu