Privacy Policy

Last updated: March 16, 2026

What We Collect

BloodMarker collects minimal data. We use Google Analytics (GA4) to understand how visitors use the site. This includes standard analytics data such as page views, time on page, device type, and approximate geographic location. We do not collect your name, email, or any personally identifiable information unless you contact us directly.

Health Data

Blood test values you enter into our analysis tool are processed entirely in your browser. Your health data is never sent to our servers, never stored, and never shared with third parties. When you close the page, your data is gone.

Cookies

We use cookies only for Google Analytics, which helps us understand traffic patterns and improve the site. We do not use advertising cookies, tracking pixels, or third-party marketing tools.

Third-Party Services

We use the following third-party services:

Google Analytics (GA4) — anonymous site usage analytics
Netlify — website hosting
Stripe — payment processing (if you purchase an analysis). Stripe handles all payment data under their own privacy policy. We never see or store your credit card number.

Data Sharing

We do not sell, rent, or share your personal information with anyone. We do not run ads. We do not use your data for marketing purposes.

Children

BloodMarker is not intended for children under 13. We do not knowingly collect data from children.

Changes to This Policy

We may update this policy from time to time. The "last updated" date at the top reflects the most recent revision.

Contact

Questions about this privacy policy: contact@bloodmarker.com