Legal
Cookie Policy
Last updated 22 August 2026
Kaizo uses only essential cookies needed to sign you in and keep the service secure. No advertising, no cross-site tracking.
1. About cookies
Cookies are small files a website stores on your device. Some are essential to make a site work (for example, to keep you signed in); others are used for analytics or advertising. This policy explains the cookies Kaizo uses.
2. Our approach
Kaizo uses only the cookies that are strictly necessary to sign you in and keep the service secure. We do not use advertising cookies or cross-site tracking, and we do not sell your data. Because our cookies are essential to the service, they are set when you use it; if you block them, you will not be able to sign in.
3. Cookies we use
| Cookie | Purpose | Roughly how long | Type |
|---|---|---|---|
| kaizo_access | Keeps you signed in during a session (short-lived access token) | Session / short-lived | Essential |
| kaizo_refresh | Securely renews your session so you are not signed out constantly | Up to ~30 days | Essential |
| __client | Set by Clerk, our authentication provider, to hold the signed-in session | Session | Essential |
| __client_uat | Set by Clerk. Records when the session was last updated so the site knows whether to refresh it. Set on every page, including before you sign in | Session | Essential |
| __cf_bm | Set by Cloudflare on Clerk's behalf to tell real visitors from bots and protect the sign-in page | About 30 minutes | Essential |
| _cfuvid | Set by Cloudflare on Clerk's behalf to apply rate limits fairly. It is not used to profile you or follow you across sites | Session | Essential |
4. Third-party services
We use a small number of providers to run the service. Sign-in is handled by Clerk, which uses Cloudflare to keep bots away from the login page; between them they set the last four cookies in the table above. Hosting and our privacy-friendly, cookie-free traffic measurement are provided by Vercel, and errors are captured by Sentry. These are used to operate and secure Kaizo, not to advertise to you or track you across other sites. Our providers are listed on our subprocessor list.
5. Managing cookies
You can control or delete cookies through your browser settings. Blocking the essential cookies above will stop you being able to sign in to Kaizo. Because we do not use advertising or analytics cookies, there is nothing else to opt out of.
6. Changes and contact
We may update this policy; the “last updated” date above will change. Questions? Email privacy@kaizosystems.com, or see our Privacy Policy.