Privacy Policy & Clinical Data Security

1. Zero-Retention Client-Side Processing Architecture

At etgcalculator.online, we recognize that substance consumption data, drug testing schedules, and toxicological assessments represent sensitive personal health information. To provide unconditional privacy protection, our entire calculation architecture operates exclusively on the client-side within your local browser sandbox.

When you enter drink counts, elapsed hours, metabolic half-life estimations, or cutoff preferences into the elimination workbench, this telemetry is processed via in-browser JavaScript. No personal inputs, numerical parameters, or simulation outputs are ever transmitted to our servers, logged in databases, or shared with third-party analytical vendors.

2. Data Collection & Server Telemetry

We do not require user account registration, email addresses, names, or identification credentials to access our calculators, research monographs, or clinical tools. Standard server access logs collect minimal, non-personally identifiable diagnostic headers (such as IP addresses, browser user-agent strings, and request timestamps) solely for DDoS defense, edge caching optimization, and network security maintenance via Cloudflare edge infrastructure.

3. Cookies & Local Storage

This website does not utilize invasive tracking cookies or commercial behavioral advertising pixels. Temporary browser Local Storage may be utilized exclusively to remember your preferred calculator configuration (such as selected cutoff threshold or unit format) across visits for user convenience.

4. General Data Protection Regulation (GDPR) & CCPA Compliance

In accordance with the European Union General Data Protection Regulation (Regulation (EU) 2016/679, GDPR) and the California Consumer Privacy Act (CCPA):

• Right to Erasure & Access: Because we collect zero identifying personal telemetry, no user records exist within our databases to query or delete.
• Data Minimization: We adhere strictly to the principle of statutory data minimization by design and by default.

5. Institutional Contact

For regulatory inquiries regarding our clinical data security architecture or editorial standards, address communications to the Clinical Toxicology & Forensic Biomarker Standards Desk at governance@etgcalculator.online.