Cookie policy
BlockBoard only uses cookies the site needs to work or to remember a choice you made. None of them are for advertising, and none follow you to other sites.
Last updated October 17, 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 |
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_bmorcf_clearance. - Cloudflare Turnstile runs only on the sign-in, sign-up and password reset pages, to check that you're a person.
- Audience measurement doesn't use cookies.
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.
Managing cookies
Because these cookies are needed for the site to work or only remember your own choices, they don't require consent. You can delete them at any time from your browser settings. If you do, you'll be signed out and the site will go back to its default look.