Cookie Policy
Transparency about cookies and tracking on our website
Last updated: March 29, 2026
Good News: We Don't Use Cookies for Tracking
Marquer is committed to privacy-first analytics. We don't use cookies for tracking, advertising, or collecting personal data.
What Are Cookies?
Cookies are small text files stored on your device by websites you visit. They're commonly used for authentication, preferences, and tracking user behavior across the web.
Current Cookie Usage
We currently use minimal essential cookies only for core website functionality:
Essential Cookies (Required)
- Language preference - Remembers your selected language (en/ru/es)
- Maintenance bypass - Allows admin access during maintenance mode
- Security tokens - Protects against cross-site request forgery (CSRF)
Analytics Without Cookies
We use privacy-friendly analytics that don't require cookies or personal data:
Vercel Analytics
Tracks page views and performance metrics without storing personal information
Plausible Analytics
GDPR-compliant, cookieless analytics that respects your privacy
Future Cookie Usage
When we launch the full web application, we may use additional cookies for:
- •Authentication - Keeping you logged in securely (Firebase session cookies)
- •User preferences - Saving your dashboard settings and biomarker display options
Your Rights
You can manage cookies through your browser settings. Blocking essential cookies may affect website functionality. Since we don't use tracking cookies, there's nothing to opt out of.
Questions About Cookies?
For more information about our data practices, see our Privacy Policy and Security pages.