Cookie Policy

Necessary (always on)

Sign-in session (Auth.js) — keeps you logged in.

mh.consent.v1 — remembers Accept / Reject / custom categories.

mahjong-hub.table-preferences.v1 — tile size, contrast, motion, colorblind marks.

Guest solitaire keys (item ledger, daily streak, first-seen) — so anonymous play still works in 60 seconds.

PWA install dismiss — stops repeating the add-to-home-screen hint.

Analytics (opt-in)

Google Analytics 4 loads only after you accept analytics. It helps us see first-tile time, clears, and whether the PWA prompt is useful. We do not send tile layouts or hand contents.

Advertising (opt-in, not live yet)

No advertising or rewarded-video SDK is installed today. When one is connected it will require this category and a server-side reward receipt. Turning the category off will stop those scripts.

How to change your mind

Use Cookie settings in the footer, or your browser site-data controls. A Global Privacy Control (GPC) signal is treated as a request not to share for ads/analytics until you explicitly opt in.