Cookie Policy
Last updated: 8 May 2026
This page explains what cookies and similar storage technologies CryptoLens uses, what they do, and how you can control them. We follow UK GDPR and the ICO’s guidance on cookies. We do not set non-essential cookies until you give consent via the cookie banner.
What is a cookie?
A cookie is a small text file stored in your browser by the websites you visit. It lets a site remember things across page loads and visits — for example, that you’re signed in, or that you’ve dismissed a banner. Some “cookies” on this page are actually
localStorage entries — same idea, different mechanism.Cookies we set on cryptolens.uk
| Name | Purpose | Category | Expiry |
|---|---|---|---|
| sb-access-token / sb-refresh-token (and chunked variants) | Keeps you signed in. Set by Supabase on login. Removed on logout. | Strictly necessary | Session / refresh cycle |
| cookie_consent | Records your response to the cookie banner so we don't show it again. | Strictly necessary | 12 months |
| ph_* | PostHog analytics — anonymous product usage telemetry. Only set after consent. | Analytics | 12 months |
| theme | Remembers your light/dark theme preference. | Functional | Indefinite (localStorage) |
| redeem_code, ref | Carries gift codes and referral codes through the signup flow. | Strictly necessary | 30 days |
Third-party cookies
We use a small number of third-party services that may set their own cookies when you interact with relevant features:
- Stripe — sets cookies on the checkout page when you upgrade to a paid plan, for fraud prevention. Stripe Cookie Notice.
- Supabase (our auth provider) — sets a session cookie when you sign in so your browser stays authenticated. Strictly necessary; no consent required.
- PostHog — product analytics. Set only after you accept analytics cookies in our banner. Used to understand which features get used and which break.
- Sentry — error monitoring. Stores a session-replay token only if you opt-in to error reporting; default is off.
Your choices
You control cookies in three places:
- Our cookie banner — shown on first visit. You can accept all, reject non-essential, or pick categories.
- Your browser settings — every browser lets you delete or block cookies for specific sites. Helpful if you want to revoke consent later.
- Account deletion — at your account page you can permanently delete your account, which removes all server-side data tied to your cookies.
Blocking strictly-necessary cookies will break sign-in and may stop the site working at all. Other categories are safe to block.
Contact
Questions about cookies? support@cryptolens.uk. For broader privacy questions see our Privacy Policy and Terms of Service.