Privacy policy

Updated 2026-10-29.

• Server logs. Our web server records each request (IP address, time, page, browser user agent, referrer) for security and troubleshooting. Logs are deleted after 14 days.
• Calculator. Lookups run in your browser. The ZIP code, grade and dependency status you enter are not sent to us.
• Local storage. If you switch between light and dark mode, the choice is stored in your browser.

We do not sell data or run accounts.