Privacy & Data Security

Privacy Policy

Last updated: September 2026 · Domain: crlagecalculator.com

100% Client-Side Health Privacy Guarantee: When you enter crown-rump length values, scan dates, or LMP history into CRL Age Calculator, all calculations execute locally inside your web browser. No personal health records, ultrasound values, or pregnancy dates are ever transmitted to or stored on our servers.

1. Information We Do Not Collect

We do not require account creation, registration, or submission of patient names, medical record numbers (MRNs), hospital names, or ultrasound scans. We do not maintain any centralized medical database.

2. Technical & Server Logs

Like virtually all internet websites, our hosting network (Cloudflare Pages) automatically logs routine, non-identifiable technical connection data (e.g., standard IP addresses, browser user-agent headers, timestamp) solely to maintain website security, mitigate DDoS attacks, and route web traffic efficiently.

3. Third-Party Links

Our site references external peer-reviewed academic organizations (such as BMUS, NICE, ACOG, and The Fetal Medicine Foundation). We are not responsible for the privacy practices of external web entities.

4. Contact Privacy Inquiries

If you have questions regarding our privacy practices, please contact us via our contact page.