Effective Date: June 1, 2026

Privacy Policy

At DataPlayArena, we value the trust you place in us. This policy details how we treat user data, analytics telemetry, and advertising disclosures across our educational platform.

1. Zero Personal Data Collection Policy

DataPlayArena is designed as a serverless static knowledge database. We do not require user accounts, logins, passwords, or payment profiles to access our courses, cheatsheets, or playgrounds.

We do not collect or store your name, physical address, or phone number.
All lesson progress, cheatsheet preferences, and practice question completions are stored locally inside your browser's localStorage and are never transmitted to our backend servers.

2. Web Analytics & Google Analytics 4

This site uses Google Analytics 4 to analyze visitor traffic via first-party cookies (including _ga and _ga_* cookies). This data helps us understand how visitors use the site and improve the user experience.

Google Analytics collects aggregated, non-personally identifiable information such as browser type, referring pages, time spent on lessons, and coarse geographical region. You can prevent Google Analytics from recognizing you on return visits by disabling cookies in your browser settings or installing the Google Analytics Opt-out Browser Add-on .

3. Third-Party Advertising & Cookie Disclosures

To keep our educational content and practice sandboxes 100% free for everyone, we display third-party advertisements served by Google AdSense and its advertising partners.

Third party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this site and/or other sites on the Internet.

Users may opt out of personalized advertising by visiting the following consumer choice resources:

Google Ads Settings: Manage your Google ad preferences or opt out of personalized ads at https://adssettings.google.com .
Digital Advertising Alliance (DAA): Opt out of third-party vendor cookies across participating ad networks at https://www.aboutads.info/choices .

4. Code Execution Playground Security

When utilizing our interactive playground labs or executing Python and SQL queries:

Python scripts and SQL queries are executed directly inside client-side WebAssembly virtual environments (Pyodide & DuckDB WASM) or isolated Docker sandbox runners.
We do not inspect, log, or catalog user code solutions. Code executed during your session is completely ephemeral.

5. Contacting Us Regarding Privacy

If you have any questions or concerns regarding this privacy policy or our data practices, please reach out directly via our Contact Page or email us at dataplayarena@gmail.com.