Privacy Policy
Last updated: July 9, 2026
At CPlayground, we respect your privacy and are committed to protecting the personal data we hold about you. This privacy policy explains how we collect, use, and safeguard your data when you use our services.
1. Data We Collect
We only collect data necessary to provide a high-quality analysis platform for competitive programmers. This includes:
- Account credentials (username, email address, password hashes).
- Competitive programming handles (specifically Codeforces username) to retrieve public rating data and submissions.
- Usage telemetry data for application performance tracking.
2. How We Use Data
We process your personal data for the following purposes:
- To authenticate you and secure your access to CPlayground.
- To import, analyze, and present statistics of your Codeforces contests and submissions.
- To troubleshoot problems, optimize database performance, and improve the user experience.
3. Data Storage and Security
All databases are securely hosted on MongoDB Atlas. We apply bcrypt encryption for user passwords. We do not sell or share your data with third parties.
4. Policy Updates
This policy may change occasionally. We will notify you of any material changes by posting the new policy on this page and updating the date above.