Cookie Policy

1. What Are Cookies

Cookies are small text files placed on your device by a website you visit. They are widely used to make websites work, to improve efficiency and to provide information to site owners. Similar technologies include localStorage, sessionStorage and pixels.

2. Categories of Cookies We Use

• Strictly Necessary — required for the Service to function (authentication, session, CSRF, load-balancing). Always on; cannot be disabled.
• Analytics — help us understand how visitors interact with the Service so that we can improve it. For visitors in the United States analytics is on by default and can be switched off at any time; in all other countries it is loaded only after you grant consent.
• Marketing — measure how our Google Ads campaigns perform (which ad click led to a sign-up or a purchase). We show no third-party advertising on the Service. For visitors in the United States this is on by default and can be switched off at any time; in all other countries it is used only after you grant consent.

3. Cookies on This Domain

On astrocodex.ai we use Google Analytics 4, provided by Google LLC (1600 Amphitheatre Parkway, Mountain View, CA 94043, USA). See the Google Privacy Policy.

Cookies set on astrocodex.ai:

• session_id — First-party, Strictly Necessary, session. Maintains your authenticated session.
• csrf_token — First-party, Strictly Necessary, session. Protects against CSRF attacks.
• cookie_consent — First-party, Strictly Necessary, 12 months. Stores your cookie-consent choice.
• _ga — Google Analytics 4, Analytics, 24 months. Unique visitor identifier.
• _ga_<container-id> — Google Analytics 4, Analytics, 24 months. Session state and campaign info.
• _gid — Google Analytics, Analytics, 24 hours. Short-lived visitor identifier.
• _gcl_au — Google Ads (set by the Google tag), Marketing, 90 days. Links a visit to an ad click so that we can measure our advertising.

4. Third-Party Cookies

Third-party cookies are set by domains other than ours. On this Service they may come from the analytics provider named in the previous section (in line with your cookie choice, see section 5) and from our payment provider Paddle (paddle.com), whose checkout library — together with its ProfitWell billing-analytics component — may set cookies needed for fraud prevention and payment processing. We do not embed third-party advertising networks or social widgets that set cookies without your action.

5. Managing Your Preferences

You can review and change your choice at any time via the “Cookie settings” link in the website footer — outside the United States analytics and ad measurement stay off until you allow them; in the United States they are on by default and can be switched off the same way. We also honour the Do Not Track and Global Privacy Control browser signals: while either is on, analytics and ad measurement stay off. You may also block or delete cookies in your browser settings (typically “Privacy and security” → “Cookies and site data”); strictly-necessary cookies are required for the Service to function.

6. Retention

Retention periods for each cookie are listed in the table in section 3. Session cookies are deleted when you close your browser; persistent cookies expire on the date shown.

7. Changes to This Policy

We may update this Cookie Policy. Material changes will be posted on this page with a revised “Last Updated” date. Continued use of the Service after changes constitutes acceptance.

8. Contact

Questions about cookies: privacy@astrocodex.ai.