Cookie Policy
Last updated: 10 October 2026
Language preferences
Your selected language is stored as an essential preference, not for analytics. We also save your language with your enquiry or waitlist request so our replies and emails use the right language.
This policy explains what SealedLight stores in your browser and why, in line with the EU ePrivacy Directive (2002/58/EC), Czech Act No. 127/2005 Coll. on electronic communications, and the GDPR.
1. Our approach
We use essential storage to make the website work and stay secure. Replit Project Analytics uses a cookieless Umami tracker for traffic and event reports, without analytics cookies or browser storage. We do not use Google Analytics, advertising or cross-site tracking cookies.
2. What we use
| Name / type | Provider | Purpose | Category | Duration |
|---|---|---|---|---|
| sealedlight_admin | SealedLight | Keeps the owner signed in to the private dashboard after a correct username and password. | Strictly necessary | 12 hours, or until sign-out in this browser |
| Theme preference (browser local storage: sealedlight-theme-mode) | SealedLight | Remembers your selected Auto, Light or Dark appearance | Strictly necessary preference storage | Until you change it or clear your browser |
| Dismissed announcement (session storage: sealedlight-announce) | SealedLight | Remembers that you dismissed the Founding 100 announcement | Strictly necessary preference storage | Until the browser session ends |
| Cloudflare challenge data, set only when a form check runs | Cloudflare | Protects forms from spam and bots | Strictly necessary | as set by the provider |
| Cookieless website analytics | Replit (Project Analytics, Umami tracker) | Measures page views, waitlist submissions and confirmations, guide reading and demo openings. Campaign source and medium are retained, but personal details and secret URL parameters are excluded. | Cookieless analytics | No analytics cookies or browser storage |
Strictly necessary items do not need your consent. They are needed to provide the website and keep it secure.
3. Your choices
Cookieless analytics does not need an analytics cookie banner. We respect Do Not Track and Global Privacy Control browser signals. You can clear essential theme, language and session preferences through your browser settings. These preferences are separate from analytics.
If you previously rejected analytics on this site, we honour that existing privacy preference until you clear your browser preferences. We do not create new analytics preference records.
4. More information
See our Privacy Policy for how we handle personal data, or contact hello@sealedlight.com.