Cookies and browser storage

Last updated October 17, 2026.

Browsing public pages

Public pages do not set optional analytics or advertising cookies. They do not load visitor analytics, external font services, or third-party map scripts.

Requested account and diagnostic features

• Account authentication: Supabase uses browser local storage to keep your sign-in session. Signing out removes the active session.
• Contest attempts: session storage keeps the token that connects a browser tab to an attempt. This supports the contest’s one-session protections.
• Final-round submissions: session storage keeps an unconfirmed answer and its request identifier until the server confirms or rejects it. This lets you retry a request without submitting the same answer twice.
• Diagnostics: the im_uid cookie contains a random identifier used to retrieve this browser’s diagnostic record. It is set when you start a diagnostic, expires after one year, and is inaccessible to page scripts.

Your choices

You can remove cookies and site storage in your browser settings. Removing them may sign you out or disconnect you from a diagnostic or active attempt. Avoid clearing storage during a timed contest. Browser deletion does not remove the information stored on the server; contact info@integratedmath.org for a data request.

Optional tracking

Optional visitor analytics are disabled. We will update this notice and provide any required consent choices before introducing optional tracking.

Read the privacy policy for information about submitted forms, accounts, and contest work.