Last updated: 20 April 2026.

1. What we use cookies for

MailChecked is intentionally light on cookies. We don't use advertising trackers, third-party analytics, or social-media pixels on the marketing site (mailchecked.com). The application (app.mailchecked.com) uses session cookies that are strictly necessary to keep you signed in.

2. Cookies set on the marketing site

NamePurposeDurationType
mck-themeStores your light/dark theme preference (localStorage, not a cookie strictly speaking).Until clearedNecessary

3. Cookies set on the application

NamePurposeDurationType
better-auth.sessionAuthenticated session — required to use the dashboard.Up to 30 days, slidingNecessary
better-auth.csrfCSRF protection on form submissions.SessionNecessary

4. Third-party services

  • Stripe sets cookies on its own checkout pages. We don't embed Stripe scripts on the marketing site.
  • Cloudflare may set the __cf_bm bot-management cookie at the edge. It contains no personal data and exists to protect the service from automated abuse.

5. Controlling cookies

Because we don't set non-essential cookies, there's no consent banner to dismiss. If you'd like to clear what we've set, your browser's privacy settings let you delete cookies and localStorage at any time. Note: clearing the session cookie will sign you out.

6. Changes

If we ever introduce non-essential cookies (we have no plans to), this page will be updated and we'll request consent before they're set.

7. Contact

Questions: privacy@mailchecked.com.