Privacy Policy

Last updated: October 1, 2026

The short version

DutyChecker's calculator runs entirely in your browser. The prices, currencies, and categories you enter never leave your device — we have no server that receives them, and we couldn't see your calculations if we wanted to.

What we collect

• Calculation inputs — processed locally in your browser only. Never transmitted.
• Standard server logs — our static host (Cloudflare Pages) processes your IP address and user agent to deliver the page, per its own privacy policy.
• Contact emails — if you email us, we keep the correspondence to respond.

Cookies and advertising

The core site sets no tracking cookies. If we enable advertising (e.g., Google AdSense) in the future, the ad network may set cookies to serve and measure ads, subject to its own policies and your consent choices. This page will be updated before any such change.

Third-party services

• Cloudflare Pages — static hosting and content delivery
• Google Fonts — typography (font files are fetched from Google's CDN)
• frankfurter.app — exchange-rate data (fetched daily by our build pipeline, not by your browser)

Your rights

Because we hold no personal data about your use of the calculator, there is generally nothing to access, correct, or delete. For anything else — including GDPR and CCPA requests — contact us and we will respond within 30 days.

Contact

Questions about this policy: see our contact page.