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Cookie Policy

Last updated: 20 May 2026

What are cookies?

Cookies are small files a website stores in your browser to remember information (such as your chosen language) or keep you signed in. At HMI Library we use only what is strictly necessary — no advertising, no third-party analytics, no profiling.

Cookies and local storage we use

NameTypePurposeDuration
sb-*-auth-token Strictly necessary Keep you signed in (Supabase Auth) 1 hour (auto-refresh)
isa_lang Functional · preference Remember your selected language Persistent (local storage)
isa_cart Functional Remember cart items (reserved; not used in the current flow) Persistent (local storage)
isa_lead_captured Functional Avoid re-asking for your email after a cheat-sheet download Persistent (local storage)
__cf_bm Strictly necessary · security Cloudflare bot management 30 minutes

We do not use marketing cookies, third-party analytics (e.g. Google Analytics) or profiling. Because we only set strictly-necessary and functional storage, no consent banner is legally required under the ePrivacy Directive / GDPR. If we ever add non-essential cookies, we will ask for your explicit consent first.

Third-party cookies during checkout

When you proceed to payment we redirect you to Stripe. Stripe sets its own cookies on its domain (stripe.com) to process the payment, prevent fraud and comply with PSD2/SCA. Those cookies are governed by Stripe's cookie policy.

How to manage cookies

You can disable cookies in your browser settings. Note that if you block strictly-necessary cookies you will not be able to sign in or use account features. Preferences (language, etc.) will then only last for the current session.

Browser guides:

More information

Questions? hello@hmilibrary.com. This policy complements our Privacy Policy.