COOKIES
What we store in your browser.
Cookies and browser storage keep you signed in and remember your language, theme and analytics choice. Analytics runs only on public pages, and only after you accept.
What a cookie is
A cookie is a small text file your browser keeps for a website. Local storage is a similar store that stays in your browser and is not sent to us.
What we set
| Name | Type | Purpose | Duration |
|---|---|---|---|
sb-<project>-auth-token | Cookie · necessary | Keeps you signed in. Set by Supabase sign-in. | Until you sign out; renewed while you use TwentyThird |
NEXT_LOCALE | Cookie · functional | Remembers your language. | 1 year if you choose a language; otherwise until the browser closes |
tt-form-echo | Cookie · necessary | Refills a form after an error without putting what you typed in the address bar. | 2 minutes (30 minutes after sign-up, for the “check your inbox” screen) |
theme | Local storage · functional | Remembers light or dark display. | Until you clear it |
tt-consent | Local storage · necessary | Remembers whether you accepted analytics. | Until you clear it, or the policy version changes |
_ga, _ga_<id> | Cookie · analytics (Google) | Counts visits to public pages. Set only after you accept; never inside your account. | 2 years |
Your choices
Use Cookie preferences in the footer to accept or withdraw analytics at any time; withdrawing is as easy as accepting. Clearing cookies in your browser signs you out and resets your language.
We set no advertising cookies and load no other third-party scripts.
Contact
Questions about cookies or any other data matter: privacy@day-23.com
Effective: 18 October 2026