Cookie Policy
Last updated: 23 June 2026
1. What are cookies?
Cookies are small text files that a website stores in your browser. They let the site remember things between page loads — like whether you are signed in, your language preference, and whether you have already seen the cookie consent banner.
This policy explains exactly what ShowIntro stores on your device, why, and how you can control it. It is written in plain language and applies to showintro.com and every sub-path. For a broader overview of how we handle personal data, see our Privacy Policy.
2. Our approach
ShowIntro uses the smallest number of cookies possible. We do not use advertising cookies, retargeting pixels, social-media tracking scripts, or any third-party analytics that follow you across other websites. We also do not sell or share cookie-derived data with brokers or data marketplaces.
Whenever a cookie can be replaced by something less intrusive (a short-lived signed URL, a server-side session, or simply doing nothing), we prefer that path. The list below is therefore short by design.
3. Cookie categories
Our cookies fall into two categories:
- Essential — required for the platform to function. Authentication and consent cookies are in this group. You cannot opt out of essential cookies while using ShowIntro, because without them you would not be able to stay signed in or record a clear consent choice.
- Functional — improve your experience by remembering your preferences (language, light / dark theme). You can clear these from your browser settings at any time without losing access to core features; the site will just fall back to the defaults.
We do not use analytics, advertising, or social cookies. If that ever changes, this policy will be updated before the new cookie is set, and the consent banner will reappear.
4. Cookies we set
The table below lists every first-party cookie that ShowIntro may place on your device. Names with a * are dynamic — Supabase prefixes them with your project reference (for example, sb-abcdef-auth-token).
| Cookie name | Type | Purpose | Duration |
|---|---|---|---|
| sb-*-auth-token | Essential | Supabase authentication session. Keeps you signed in across page loads and tabs. | Up to 1 week |
| sb-*-auth-token-code-verifier | Essential | PKCE verifier used briefly during the OAuth / magic-link sign-in handshake. | Session (≤ 10 min) |
| cookie_consent | Essential | Stores your cookie consent choice so we don't ask again on every visit. | 1 year |
| NEXT_LOCALE | Functional |