Privacy

Last updated October 7, 2026

TradeLab is a practice stock market game run by your teacher for class. It uses pretend money only. This page explains what it keeps about you and why.

What TradeLab stores

• Your username and display name. Use a nickname if you like; your real name isn't needed.
• Your password, hashed. It's scrambled one way before it's saved, so nobody, including your teacher, can read it. Your teacher can set a new one if you forget it.
• Your game activity: the trades you make, your pretend cash, loan and holdings, and a daily record of your net worth.
• One cookie called sid that keeps you logged in for up to 30 days. There are no advertising or tracking cookies.

TradeLab doesn't ask for your email, phone number, birthday, address or any real money details.

Who can see it

• Players in your game see your display name, net worth and return on the leaderboard.
• Your teacher (the site's administrator) can see your portfolio, trades and username, and can reset your password or delete your account.
• Nobody else. Your information is never sold or shared for marketing.

Where it's kept, and the services involved

• Google Cloud hosts the server and its database, in a data centre in the United States (Iowa). Information stored there may be subject to US law.
• Cloudflare sits in front of the site to provide the secure (HTTPS) connection and block attacks. Your traffic passes through it, including your IP address.
• Yahoo Finance and Nasdaq supply stock and crypto prices. The server asks them for prices by ticker symbol only; nothing about you is sent.
• Google Fonts supplies the typeface, so your browser downloads it from Google.

How long it's kept

Your account and game history stay until your teacher deletes the game or your account. You can ask your teacher to delete your account at any time. Failed login attempts are counted for 15 minutes to stop password guessing, and then forgotten.

Questions

Ask your teacher. If you're under 18, a parent or guardian can ask on your behalf, including to see or delete what's stored about you.