The short version: SWEEP:WC26 doesn't set any cookies. Here's what we do use, and how to clear it.
Last updated: 22 May 2026
SWEEP:WC26 is a single-page application that doesn't set, read, or share any HTTP cookies — not first-party, not third-party, not analytics, not tracking. There is no cookie banner because there are no cookies to consent to.
To remember which pools you've created or joined on this device, we store a few small keys in your browser's localStorage. localStorage is first-party only — never sent to our servers, never accessible to other sites, and stays on your device until you clear it.
sweep-wc26-secret-<poolId> — your admin secret for a pool you created. Required to manage that pool.sweep-wc26-drawn-<poolId> — the team ID you drew in a pool you joined. Used to greet you with "your team" when you return.You can wipe all SWEEP:WC26 data from your browser at any time:
Clearing localStorage will sign you out of every pool you've touched on this device. You can recover pool access by entering your admin email at the "Lost your link?" prompt on the home page.
Your browser loads team flag images from a third-party CDN (jsDelivr), which serves static SVG files. jsDelivr does not set cookies for these requests, but the request itself reveals your IP address to them per standard HTTP behaviour. No other third-party requests are made.
If we ever start setting cookies (we don't currently plan to), we'll update this notice and add a consent banner before the first cookie is set. Any change will be reflected by a new "last updated" date.