Zero-Data Privacy Policy
Effective Date: September 30, 2026
Our Core Privacy Guarantee
We do not collect, store, transmit, or monetize your personal physical information. Every single parameter you input into DIN Calculator Pro is processed entirely in your device's local memory (RAM) and discarded the moment you close your browser tab.
1. Information We Do NOT Collect
- No Biometric or Physical Data: Your weight, height, age, and boot sole length are never transmitted to any server or third party.
- No User Accounts: There are no user sign-ups, passwords, logins, or member databases.
- No Tracking Cookies: We do not set persistent advertising, tracking, or cross-site profiling cookies.
2. Pure Client-Side Execution
DIN Calculator Pro is built using static site generation (SSG). Calculations execute in <1ms directly on your device CPU. Zero background network requests are sent during calculation.
3. Privacy-Preserving Web Analytics
To monitor site performance and understand general traffic volume, we may use privacy-first, cookieless analytics. These tools do not track individual users and do not collect PII or IP addresses.
4. Third-Party Hosting & CDN
This website is hosted on modern edge content delivery networks (Cloudflare Pages). Standard web server access logs may be collected automatically by infrastructure providers for network defense.
5. Compliance with Global Regulations
Because we do not process, store, or sell personal identifying data, DIN Calculator Pro is designed from the ground up to comply with global privacy standards, including the European Union General Data Protection Regulation (GDPR), California Consumer Privacy Act (CCPA), and UK Data Protection Act.