Cookies and Your Preferences
How QNC Exchange uses cookies, which types we run, and how you can manage your preferences.
Last updated: May 20, 2026
1. What Is a Cookie?
A cookie is a small text file placed on your device by the websites you visit. It stores data in name-value format and is read on subsequent visits to personalize your experience. Cookies may collect personal data; therefore they are subject to GDPR (EU), UK GDPR (UK), CCPA (California), LGPD (Brazil), and other international regulations.
2. Why QNC Exchange Uses Cookies
• Security — Protect your session, prevent fraud • Preferences — Remember language, theme, favorite pairs • Performance — Monitor page load times, errors • Marketing — Only with your explicit consent, for campaign effectiveness
3. Types of Cookies We Use
Essential Cookies (cannot be disabled): Required for session management, security, fraud prevention, and CSRF protection. The platform cannot operate without these. Examples: qnc_session (session id), qnc_csrf (CSRF token), cf_clearance (Cloudflare bot protection), qnc_locale (language). Functional Cookies (optional): Remember preferences such as theme, favorite pairs, dashboard layout. Examples: qnc_theme, qnc_favorites, qnc_layout. Analytics Cookies (optional — anonymized): Collect anonymized data such as page visits, user paths, error rates. Provider: Vercel Analytics. Marketing Cookies (optional — explicit consent): Activated only with your explicit approval. Used for measuring ad effectiveness and personalization. OFF by default.
4. Third-Party Cookies
QNC Exchange uses cookies of the following third-party service providers. Each provider's own privacy policy applies: • Cloudflare — DDoS protection, CDN (Essential) • Vercel — Hosting and analytics (Essential + Analytics) • Stripe — Payment infrastructure (Essential, only on payment pages) • Brevo — Email delivery tracking (Marketing, optional) • Cloudflare Turnstile — Bot verification (Essential)
5. Cookie Management and Your Preferences
Cookie Preference Center: Use the "Cookie Preferences" button in the bottom-left corner of the page to open or close cookie categories anytime. Browser Management: You can also manage cookies from your browser settings — Chrome, Firefox, Safari, Edge, Opera. Warning: If you block essential cookies the platform will not work; you cannot log in or trade.
6. Regional Consent Rules
EU / UK (GDPR + ePrivacy) — Opt-In model: All non-essential cookies are off until you actively give consent. Via the banner you can select "Accept All", "Only Essential", or "Customize". California (CCPA/CPRA) — Opt-Out model: Marketing cookies run by default, but you can disable them anytime via the "Do Not Sell or Share My Personal Information" link. Brazil (LGPD) — Explicit consent required, opt-in model same as the EU. Canada (PIPEDA) — Explicit or implied consent, varies by cookie type. Other regions — Your browser settings are treated as default preference.
7. Cookie Security
• All cookies are transmitted over HTTPS (Secure flag) • Sensitive cookies are marked HttpOnly — JavaScript cannot access them • Protection against cross-site attacks with SameSite=Lax/Strict • Session cookies are automatically deleted on successful logout or inactivity
8. Policy Updates and Contact
QNC Exchange may revise this Cookie Policy due to legal changes or new service integrations. Material changes are announced by re-requesting consent via the cookie banner. Contact: • [email protected] — general questions • [email protected] — data protection and privacy