Privacy Policy

Overview

Mania Tracker is an osu!mania community site built around public osu! data, cached projections, and user preferences. This policy explains the data used to operate the site.

Data The Site Uses

Mania Tracker uses public osu! profile, score, beatmap, beatmapset, ranking, and replay metadata, plus community data services such as osu! score cache, to build rankings, tracker views, maps, snipes, top plays, farm-helper suggestions, profiles, and replay views.

If you sign in with osu!, the site receives the osu! account details allowed by the identify and public OAuth scopes, such as user ID, username, avatar URL, and country. The site stores a signed HTTP-only session cookie so it can recognize you while the session is active.

Some signed-in features store data on the server, tied to your osu! user ID: goals you create (goal type, target, progress, and status), your card pack wallet and collection (pulled cards and pull times), and roster opt-in or opt-out choices. The My Stats dashboard does not store anything extra; it only shows you data the site already holds about your account.

The browser stores preferences and caches in localStorage, including theme settings, selected country, hidden users, replay viewer preferences, map filters, and similar client-side state. You can clear this data through your browser storage controls.

Analytics And Logs

Mania Tracker counts page views and feature usage with its own first-party analytics, stored on the site's own server. Events are sent through the site's own endpoint and can include the visited route, selected country, referrer, browser language, screen size, and route context such as a viewed player, score, beatmapset, or maps tab. Events are kept for 90 days and then deleted.

Analytics groups page views from the same browser using a random visitor ID stored in localStorage. The ID is not derived from or linked to your osu! account, and clearing site data removes it. The country shown in analytics is derived from the request at the hosting edge; the IP address itself and the browser user agent are not stored. Analytics events are not sent to any third-party service.

To prevent abuse, the server counts requests per IP address for rate limiting and caps concurrent live connections per IP. These counters live in memory only: the backend does not write IP addresses or user agents to its database or logs. Hosting providers keep standard request logs, and the server records operational details such as job activity, upstream osu! API calls, and errors to monitor service health.

Sharing

Mania Tracker does not sell personal data. Data may be processed by service providers used to run the site, including hosting, storage, analytics, osu! API services, and community score-data services. Public osu! data may be cached and re-displayed as part of the site's community features.

Retention And Controls

Browser preferences and local caches stay on your device until they expire, are replaced, or you clear localStorage. osu! login sessions can last up to 30 days unless you log out earlier.

The server keeps raw score events for about 14 days, live event replay logs for about 7 days, completed background-job records for about 2 days, API call logs for about 7 days, country rank snapshots for about 14 days, and player activity summaries for up to 2 years.

Durable public projections such as rankings, maps, top plays, snipes, cached profile data, and historical aggregates may be kept longer because they are what the site uses to serve those features. Goals and card pack collections are kept while your account uses those features.

For privacy, deletion, attribution, takedown, or data concerns, contact the maintainer through the public osu! profile linked in the footer.