Privacy Policy

All lookups and the compatibility calculation run inside your browser. Birth dates are never sent to or stored on a server.

To make compatibility results shareable, the selected month/day may appear in the URL query (m, d, m2, d2). The analytics tags strip those parameters before transmitting anything.

We use two analytics providers: Cloudflare Web Analytics (cookieless, always on) and Google Analytics 4 (cookies, only after you consent). Before consent — or after declining — Google may receive an anonymous measurement signal that uses no cookies or persistent identifiers (Google Consent Mode). You can withdraw consent at any time via "Cookie settings" in the footer.

No ads, no accounts, and no server-side storage of personal data.

Feedback is received by email (feedback@birthdaycolor.online). What you send, including your email address, is used only to reply and to correct the site; it is not stored in a database and not used for advertising or marketing. Sending feedback is always optional.