Cookies
For the 30 September 2026 Initial Release, PINKY CATs uses only cookies required for service functionality, authentication and security. Non-essential analytics or tracking cookies are not used.
| Cookie | Purpose | Lifetime |
|---|---|---|
| pinky_locale | Remembers the chosen display language (Japanese or English). | 1 year. |
| __Host-pinky_session | Authentication session cookie used to keep sign-in secure. | The server-configured authentication session lifetime. |
| __Host-pinky_attempt_claim | Securely links an anonymous Assessment Attempt to the same user after authentication. | Until the related Assessment Attempt expires. |
| __Host-pinky_consent_session | Links Gate 1 and Gate 2 evidence to the same pre-registration context. | Until the related Assessment Attempt expires, or the browser session for standalone registration. |
| __Host-pinky_attempt_resume | Records the user's explicit choice to save an Assessment and continue later. | Browser session cookie. |
| __Host-pinky_referral_visit | Securely links a visit from a Friend Invite URL to an Assessment Attempt only when the recipient actually starts the Assessment. | Up to 1 hour; cleared when the Assessment starts. |
Friend Invite referral attribution uses only a short-lived first-party cookie. Opening the invite link alone does not count as starting an Assessment or creating an account.