Cookies and similar technologies - AstroAlkemy
Last updated: 27 June 2026
AstroAlkemy uses technical/essential cookies and storage technologies required for operation and, only with your consent, analytics cookies (Google Analytics) to understand how the site is used. We do not use advertising or profiling cookies.
What we use
Technical (essential) — no consent required
| Tool | Purpose | Duration |
|---|---|---|
| Supabase session token | Keeping you signed in | Session/refresh |
| localStorage | Remembering your preferences (language, theme, appearance) and your cookie choice | Persistent, on your device |
| Google Identity | Only if you use "Sign in with Google" | Managed by Google |
As these tools are strictly necessary to provide the requested service, they do not require prior consent.
Analytics — consent-based only
| Tool | Purpose | Duration |
|---|---|---|
| Google Analytics 4 (gtag.js) | Aggregated, anonymous statistics on how the site is used | Up to 2 years (_ga cookie) |
We use Google Consent Mode v2: before you give consent,
analytics_storage is set to denied, so Google Analytics does not write
cookies and does not collect identifying data. Analytics cookies are
activated only after you click Accept (or enable the Analytics category
in preferences) in the cookie banner.
Managing and withdrawing consent
You can review or withdraw your choice at any time from the "Cookie preferences" link in the site footer. You can also delete stored data from your browser settings (clearing cookies/site data). Disabling the essential ones may prevent access to or proper operation of the Service.
Updates
If we introduce new tools that require consent, we will update this page and manage them through the consent banner.