Three cookies, all of them for sign-in, and only after you sign in: bv_auth_token, bv_refresh_token and bv_csrf_token. A signed-out visitor carries none of them.
Your browser also stores eleven things for this site, listed key by key on the cookie policy page. They fall into three groups:
- Signing you in:
bv_secure_token, bv_secure_session_active, bv_secure_user, bv_secure_enc_key, auth-storage, and the older token and user. These hold your sign-in pass and a copy of your name, email and account flags. The pass is sent to my API with every request you make while you are signed in, which is what signing in means. bv_secure_user is encrypted; auth-storage is not. - Your device and your preferences:
deviceFingerprint (so your security page can tell you which devices are signed in), preferredCurrency and lastKnownRate (the currency prices are shown in, and the last rate this browser saw; you are charged in USD either way). - The install prompt:
pwa-first-seen, pwa-pageviews and pwa-install-dismissed, so I do not ask you twice to install this site as an app.
If your browser refuses local storage, the sign-in values fall back to a short-lived cookie so signing in still works. Clearing site data for this domain removes every one of them.
Analytics is Cloudflare Web Analytics, which sets no cookie and records no identifier linking one visit to the next. There are no advertising cookies and no cross-site trackers, which is why you see no cookie banner. The one third-party cookie on this site is Stripe’s, on the card form when you pay, for its fraud checks. I never see your card either way.
The full list of cookies and storage keys is on the cookie policy page.