1. What is a "cookie" on this site?
We use the term broadly to include both browser cookies and localStorage/sessionStorage entries (HTML5 web storage), because the user-facing effect is the same: small amounts of data your browser keeps for the Site.
2. Strictly necessary (always on)
These cannot be disabled — the Site would not function without them.
theme— your light/dark mode preference.coincalc_announcement_dismissed— remembers which announcement banner you've dismissed.coincalc_cookie_consent— your cookie consent choice (we store the fact you chose).- Service Worker cache (cache name
coincalc-next-v2) — enables offline use as a PWA.
3. Functional (set by your actions)
These exist only because you used a feature. Clearing browser storage removes them.
coincalc_scenarios_v1— your saved calculator scenarios.coincalc_leads_v1— a local log of contact-form submissions for your reference.coincalc_lead_dismissed_at,coincalc_lead_shown_session— anti-spam timing for the lead-capture slide-up.coincalc_stats_bumped_v1— dedupes the visitor/calculation counters so a single session doesn't double-count.
4. Analytics (only after consent)
If the Site operator has configured Google Analytics 4 (NEXT_PUBLIC_GA4_ID), and you accept the cookie banner, GA4 sets the standard _ga and _ga_* cookies. We run GA4 with anonymize_ip enabled, which truncates the last octet of your IP before it reaches Google's servers.
If you select "Essential only" on the cookie banner, GA4 is not loaded and these cookies are never set.
5. Cookies we do NOT use
- No advertising cookies.
- No re-targeting pixels (Facebook, LinkedIn, Twitter ad networks).
- No fingerprinting libraries.
- No data broker integrations.
6. Third-party cookies via embedded content
If you visit a page that loads a third-party widget (e.g., a YouTube video in a future blog post), that provider may set its own cookies under their privacy policy. We do not control these.
7. How to control cookies
- Cookie banner: revisit your choice by clearing
localStoragefor https://coincalc.in — the banner will reappear. - Browser settings: all modern browsers let you block or clear cookies and storage. Doing so will reset your saved scenarios and dismissed banners.
- Do Not Track: we respect the DNT header — when DNT=1 is sent, GA4 is not loaded even if you previously accepted.
8. Changes
We update this list whenever we add or remove a cookie. Last updated at the top of this page. Questions? Contact us.