Madmoo
Cookies
Madmoo only uses the cookies it needs to work. There are no advertising or tracking cookies, which is why there's no banner asking you to accept them.
Last updated 8 November 2026
The cookies
madmoo.auth keeps you signed in. It's only set when you sign in, and lasts until you close your browser, or 30 days if you choose to stay signed in.
madmoo.antiforgery stops other sites sending forms in your name. It lasts until you close your browser.
madmoo.external holds a sign-in with Discord, Google, Facebook or Apple for a few minutes while it finishes.
madmoo.notice carries a short message to the next page (like "Saved"). It lasts until you close your browser.
plague-guide.theme remembers whether you chose the light or dark theme, so pages open in it. It lasts a year.
Your tools' data
The tools save your squads, research levels and settings in your browser's own storage, not in a cookie, with a note of when you last used them. It's cleared after 2 hours of not using the tools. If you're a patron, it's saved with your account instead, so it follows you to every device.
Votes don't use a cookie either. "Was this helpful?" remembers your answer for the day with a scrambled code made from your network address and the date (never the address itself), and the code is cleared the next day. Polls and the tier list need you to be signed in, so they use your account.
If you block cookies
The guides and tools still work. Signing in and forms won't.
If this changes
If I ever add a cookie the site doesn't need, such as one for visitor statistics, I'll ask you first.
Questions? Email me at privacy@madmoo.gg.