Cookie Policy
Last updated: February 23, 2026
1. What Are Cookies?
Cookies are small text files that are placed on your device when you visit a website. They are widely used to make websites work efficiently and to provide information to the site owners. Chesslytix uses a minimal number of cookies that are necessary for the Service to function.
2. Cookies We Use
We use the following types of cookies:
| Cookie | Type | Purpose | Duration |
|---|---|---|---|
| auth_token | Essential | Keeps you logged in to your account | Session / 30 days |
| theme | Functional | Remembers your light/dark mode preference | 1 year |
| sentry-* | Functional | Error tracking and performance monitoring (Sentry) | Session |
We do not use advertising cookies, tracking cookies, or third-party analytics cookies.
3. Managing Cookies
You can control and delete cookies through your browser settings. Most browsers allow you to:
- View what cookies are stored on your device
- Delete all or specific cookies
- Block cookies from specific or all websites
- Set your browser to notify you when a cookie is set
Please note that blocking essential cookies (such as the authentication cookie) will prevent you from using Chesslytix while logged in.
4. Local Storage
In addition to cookies, we use your browser's local storage to save preferences and draft game data locally. This data never leaves your device unless you explicitly save or sync it. You can clear local storage through your browser's developer tools.
5. Changes to This Policy
We may update this Cookie Policy if we introduce new cookies or change how we use existing ones. Any changes will be reflected in the "Last updated" date at the top of this page.
6. Contact
If you have questions about our use of cookies, contact us at support@chesslytix.app.