Cookie policy

BlockBoard uses cookies the site needs to work or to remember a choice you made, and, only if you accept, one to recognise you when you come back. None of them are for advertising, and none follow you to other sites.

Last updated October 21, 2026

Cookies for everyone

Name What it does Lasts
bb_theme Remembers light, dark or automatic mode 1 year
bb_side Remembers whether the sidebar is open or folded 1 year
bb_tz Remembers your time zone, so "Today" on Stories starts at your midnight 1 year
bb_consent Remembers whether you accepted or rejected the analytics cookie, so we don't ask again 1 year

Only if you accept

Name What it does Lasts
bb_vid A random code that lets our own analytics recognise you when you come back. With it we also keep your IP address with your visits. It is never shared and never used for ads. Rejecting deletes it. 13 months

Cookies for accounts

Name What it does Lasts
__Host-bb_account Keeps you signed in. It holds a random token; we only store a fingerprint of it. 30 days, or 7 days without use
__Host-bb_form Protects the sign-in, sign-up and password forms against forged requests 2 hours
__Host-bb_oauth Checks the answer when you sign in with another service 10 minutes

Other services

  • Cloudflare carries all traffic to the site and may set its own technical cookies to tell people from bots, such as __cf_bm or cf_clearance.
  • Cloudflare Turnstile runs only on the sign-in, sign-up and password reset pages, to check that you're a person.
  • Audience measurement is our own and runs on our server. Without your consent it uses no cookie.

Stored in your browser, not cookies

Coins you star on the markets page and stories you follow are kept in your browser's local storage.

We also store in your browser which tips you have seen, so we do not show them again. If you have an account, that list is kept with your account instead.

Managing cookies

The cookies for everyone and for accounts are needed for the site to work or only remember your own choices, so they don't require consent. The analytics cookie does: it is only set if you press Accept, and you can change your choice below at any time. You can also delete any of them from your browser settings; if you do, you'll be signed out and the site will go back to its default look.

Cookie settings