Legal

Cookie Policy

Last updated September 22, 2026

The short version. ArbTrader sets one cookie, and only after you log in: it keeps you signed in. There are no advertising, analytics or tracking cookies, and no third-party cookies on our pages. Because we only use what’s strictly necessary, there’s nothing to opt in or out of — our banner is a notice, not a request.

Contents

  1. 1. The cookie we set
  2. 2. What the site stores in your browser
  3. 3. Third parties
  4. 4. Your choices
  5. 5. Contact

2. What the site stores in your browser

These aren’t cookies and are never sent to us automatically. They stay on your device:

  • IndexedDB “arbtrader” — exchange keys you connect (stored as non-extractable keys), your Polymarket wallet address, and your order-ticket log. Remove them from the Connections tab or by clearing this site’s data.
  • Local storage — that you’ve seen the cookie notice, so it isn’t shown again.
  • Session storage — one-time messages between pages (for example after signing up); cleared when you close the tab.

3. Third parties

Our pages load fonts from Google Fonts, which sets no cookies. When you go to checkout or the billing portal you’re on Stripe’s site, and Stripe uses its own cookies for payment security and fraud prevention under Stripe’s cookie policy.

4. Your choices

You can block or delete cookies in your browser settings. If you block the session cookie you won’t be able to log in; the public pages and the demo still work.

5. Contact

Questions: support@arbtrader.co. See also our Privacy Policy.