Privacy Policy
Your privacy matters. This page explains exactly what data DockerPlay uses, and how advertising works on this site.
Last updated: October 31, 2026
Overview
DockerPlay (“we”, “us”, “the site”) is a free, in-browser Docker learning playground available at dockerplay.org. We do not require you to create an account, and we do not ask for your name, email, or any personal identifying information to use the site.
Information we store
DockerPlay runs entirely in your browser. The Docker commands you type, the simulated containers you create, and your learning progress (XP, streaks, completed chapters) are kept in your browser’s local storage on your own device. This data never leaves your device and is never sent to our servers — because DockerPlay is a static site with no backend database.
You can clear this data at any time by clearing your browser’s site data for dockerplay.org.
Cookies and advertising
DockerPlay uses Google AdSense to display advertisements, which keeps the site free for everyone. In connection with this:
- Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website and other websites.
- Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to DockerPlay and/or other sites on the Internet.
- You may opt out of personalized advertising by visiting Google Ads Settings.
- You can also opt out of a third-party vendor’s use of cookies for personalized advertising by visiting aboutads.info.
For more information on how Google uses data when you use our partners’ sites or apps, see Google’s Privacy & Terms.
Analytics
We may use privacy-respecting analytics to understand aggregate, anonymous traffic (for example, how many people visit a lesson). This never identifies you personally.
Children’s privacy
DockerPlay is an educational tool intended for a general audience. We do not knowingly collect personal information from children under 13.
Changes to this policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.
Contact
If you have any questions about this Privacy Policy, please reach us through our Contact page.