Cookie Policy
Last updated: Oct 5, 2026
1. Introduction
This Cookie Policy explains how MESSAI.IO uses cookies and similar tracking technologies on our platform. This policy complies with EU ePrivacy Directive and GDPR requirements.
2. What Are Cookies?
Cookies are small text files placed on your device when you visit our website. They help us remember your preferences and keep your account secure.
3. Types of Cookies We Use
3.1 Essential Cookies
These cookies are necessary for the platform to function properly, or are set at your request. The cookie settings do not switch them off.
| Cookie Name | Purpose | Duration |
|---|---|---|
| __Secure-next-auth.session-token | Keeps you signed in. Set when you sign in. | 30 days after your last visit while signed in; deleted when you sign out |
| __Host-next-auth.csrf-token | Protects signing in and out against cross-site request forgery. Set on every visit, whether or not you sign in. | Until you close your browser |
| __Secure-next-auth.callback-url | Remembers the page to return to after signing in. Set on every visit, whether or not you sign in. | Until you close your browser |
| __Secure-next-auth.state | Secures signing in with Google or GitHub. Set only while you sign in that way. | Up to 15 minutes |
| __Secure-next-auth.pkce.code_verifier | Secures signing in with Google. Set only while you sign in that way. | Up to 15 minutes |
| NEXT_LOCALE | Remembers the language you chose (English or German). Set only when you pick a language in the language menu. | 1 year |
3.2 Functional, Analytics and Marketing Cookies
We currently set no functional, analytics or marketing cookies. The cookie notice and the cookie settings page let you choose these categories, but at present your choice does not change which cookies are set.
3.3 How We Store Your Cookie Choices
Your cookie choices are not stored in a cookie. They are kept in your browser’s local storage, under “cookie-consent” (your choices) and “cookie-consent-date” (when you made them). Local storage has no expiry date: both entries stay until you delete them, for example by clearing this site’s data in your browser. The cookie notice then asks again.
4. How to Manage Cookies
You can manage your cookie preferences at any time through our cookie settings page or through your browser settings.