Privacy Policy

The market you are looking at. While the panel's analytics are open on a market page, the extension sends that market's ID, with the IDs of the other markets of its event that the panel lists, to our server (plm.hackjapanese.org), which answers with who holds it and which of the traders we track are in its event. On a sports or esports market, the extension then sends back the public wallet addresses of the holders the server listed, with the game the market is on, and asks the server to compute each holder's record in that game from Polymarket's public data; the server keeps those records.

Profiles you open. When you open a Polymarket profile, or a trader's page from the panel, the extension sends that profile's public wallet address, and the server answers with their record. If the trader has not been measured recently, the extension also asks the server to measure them: the server then computes their statistics from Polymarket's public data and keeps those statistics. It does not record who asked.

Your wallet address. When you are signed in on polymarket.com, the extension sends the public address of your own Polymarket wallet, and the server answers whether the account joined Polymarket through our referral link or is on our access list. When you open the extension's settings popup, it may also send your Polymarket username, so the popup can show whether the account was referred.

Your IP address. Like any web server, ours sees the IP address a request comes from. It uses it to limit how often one address can ask, and it is recorded, together with the request (which contains the market ID or wallet address above), in the server's technical logs. We use those logs only to run and secure the service.

Nothing else leaves your browser for our server: not the other pages you visit, not your balances, positions or orders, and not any credential.

To list the markets of the event on screen, and to find the wallet behind a profile's username, the extension asks Polymarket's public API (gamma-api.polymarket.com) directly. Our server reads Polymarket's public data about the markets and wallets above to compute the analytics. Polymarket's own privacy policy covers what Polymarket does with those requests.

The extension keeps these in Chrome's extension storage: your settings (theme, panel size and position, and which parts of the panel are shown), the market you picked on each page, the wallet address and username of the signed-in account, and the last answer about the referral check. Your settings are kept in Chrome's synced storage, so if Chrome sync is on they follow you to your other Chrome browsers; everything else stays on the device. Removing the extension deletes all of it.

• We do not sell, rent or trade your information.
• We do not share it with third parties, except the providers that host and protect our server, and where the law requires it.
• We do not use it for advertising, analytics or tracking, and we do not collect your browsing history.
• We do not use it to determine creditworthiness or for lending.

Our use of information received through the extension adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements.

We do not keep a record of the wallet addresses that ask for a referral check, or of who opened which profile, beyond the server's technical logs. Those logs are kept only as long as we need them to run and secure the service, and are then deleted.

The statistics our server computes about a trader whose profile was opened, and the per-game records of a market's holders, are summaries of Polymarket's public data about those wallets, not information about you. They are kept for up to 45 days after they were last computed.

You can remove the extension at any time from chrome://extensions; that deletes everything it stored in your browser. To ask what we hold about your wallet address, or to have it deleted from our logs or its statistics removed, write to us at [email protected].

This website does not use cookies, analytics or trackers. Its web server keeps standard access logs, including IP addresses, to run and secure the site.

Poly Fast is not intended for anyone under 18.

If this policy changes, we will update it on this page and change the date at the top. If a change affects what the extension sends, the extension's Chrome Web Store listing will change with it.

Questions about this policy: [email protected].