1. Core Architecture: 100% Client-Side Computation
Unlike traditional web utilities that post form data to remote servers for processing, FitCalcHub runs all calculations entirely inside your browser's local JavaScript runtime.
Whether you are evaluating sensitive health metrics (such as BMI, body fat percentage, or caloric targets), private financial records (such as salary, mortgage principal, or loan interest), or proprietary engineering dimensions, no numerical inputs or outputs are ever transmitted to our web servers, stored in cloud databases, or viewed by third parties.
2. Information We Automatically Collect
When you visit FitCalcHub, our hosting infrastructure and content delivery network (CDN) collect standard non-identifiable web traffic telemetry:
- Browser user-agent, operating system, and screen resolution.
- Referring URL and requested page paths.
- Anonymized IP addresses used exclusively for DDoS mitigation and server load balancing.
3. Cookies and Local Storage
We use minimal browser storage strictly to improve your user experience:
- Functional LocalStorage: Used to persist your preferred measurement unit system (Metric vs. Imperial) and theme preferences across sessions. No personal identifiable information (PII) is stored.
- Third-Party Vendor Cookies: Third-party partners, including Google AdSense, may place cookies to serve relevant contextual advertising based on prior visits to this or other websites. Users may opt out of personalized advertising by visiting Google Ads Settings or AboutAds.info.
4. GDPR and CCPA Compliance
Under the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA):
- We do not sell, rent, or trade your personal data to any third party.
- Because we do not store personal account databases or computational input logs, we hold zero user-identifiable records.
- If you contact our editorial team via email, your email address is used solely to respond to your specific inquiry.
5. Contact Data Protection Officer
For privacy queries, data protection concerns, or legal notices, contact our data compliance coordinator at privacy@fitcalchub.co.uk.