Last updated: November 12, 2024
chess.koz.tv provides free chess game analysis powered by Stockfish engine. This Privacy Policy explains how we collect, use, and protect your information when you use our website and Chrome extension.
When you use our Chrome extension or manually import games, we collect:
Important: We only access publicly available game data from Chess.com. We do not collect any private or personal information beyond your public Chess.com username.
When you analyze games, we store:
We automatically collect standard web server logs including:
We use the collected information to:
Our Chrome extension requires the following permissions:
Used to detect when a game ends on Chess.com and inject the "Analyze on chess.koz.tv" button.
Used to save user preferences such as development mode settings. No personal data is stored locally.
https://www.chess.com/* - To detect game completion and extract game IDs
https://chess.koz.tv/* - To communicate with our analysis service
Your game data and analysis results are stored in our secure PostgreSQL database. We implement industry-standard security measures including:
We interact with the following third-party services:
We fetch publicly available game data from Chess.com's public API. Please refer to Chess.com's Privacy Policy.
We use the open-source Stockfish chess engine running on our servers for analysis. No data is shared with external parties.
We retain your game data and analysis results indefinitely to provide you with historical insights and track your progress over time. You can request deletion of your data at any time by contacting us.
Under the General Data Protection Regulation (GDPR), you have the following rights:
You can view all your data at any time by visiting your dashboard.
Export all your data in JSON format:
Settings → Export My Data
Not applicable - We only store publicly available information:
Under GDPR Article 17(3)(e), the right to erasure does not apply when processing is necessary for archiving purposes in the public interest or scientific research. Additionally, publicly available information is not considered "personal data" under GDPR when it's already accessible through other public sources (Chess.com).
If you find inaccurate data, please contact us at privacy@chess.koz.tv
You can object to analytics tracking:
Settings → Cookie Preferences → Change preferences
You can withdraw your cookie consent at any time from the Settings page.
To exercise any of these rights, visit your Settings page or contact us at privacy@chess.koz.tv.
Our service is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.
We use cookies to improve your experience. When you first visit our site, you will see a cookie consent banner where you can choose to accept only essential cookies or all cookies.
These cookies are necessary for the website to function and cannot be disabled. They include cookies for remembering your cookie preferences.
Only loaded if you consent to analytics cookies:
You can change your cookie preferences at any time from the Settings page. We do not use cookies for advertising or marketing purposes.
We may update this Privacy Policy from time to time. We will notify you of any significant changes by updating the "Last updated" date at the top of this page.
If you have any questions about this Privacy Policy or our data practices, please contact us:
Website: chess.koz.tv
Email: privacy@chess.koz.tv
chess.koz.tv is an open-source project. You can review our code and privacy practices on our GitHub repository.
This Privacy Policy is effective as of the date stated at the top of this page.