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Policy

Cookies and storage

Last updated 2 October 2026

Clarity uses a few cookies and browser-storage items. Some are needed for the site to work. The rest measure how Clarity is read, and in the EEA, the UK and Switzerland they are used only if you say yes. There are no advertising or cross-site tracking cookies. More on what we do with data is in the privacy policy.

Strictly necessary

These make sign-in, security and your settings work, so they need no consent.

__session, __client_uat and other __clerk* cookies
Keep you signed in (Clerk). Set only when you sign in.
Lasts: Session to 1 year
cf_clearance, __cf_bm
Security: shows Cloudflare you passed a bot check, so you are not asked again.
Lasts: 30 minutes to 1 year
clarity:consent
Remembers your answer to the measurement question.
Lasts: Until you change it
today-theme
Light or dark mode.
Lasts: Until you change it
today-role
The perspective you picked (builder, operator or investor).
Lasts: Until you change it
today-history
Stories opened on this device, so the front page can mark what you have read. Never sent to us.
Lasts: Until you clear it
today-banner
That you dismissed the top banner.
Lasts: Until you clear it
today-stack, clarity-today-stack
An older on-device My Stack, imported once into your account when you sign in.
Lasts: Until imported
clarity:today:* (session storage)
Short-lived page state: a draft you are sharing, a question in progress.
Lasts: Until the tab closes

Measurement

These help us see which pages work and which are hard to read. With your consent we may also record sessions (clicks, scrolling and page changes, with what you type masked). Without consent, or if your browser sends Global Privacy Control, the analytics ID is kept in memory only and forgotten when you leave the page, layout versions last only for the tab, and nothing is recorded.

ph_…_posthog (local and session storage)
An anonymous analytics ID and the current visit, so pages viewed in one visit are counted as one reader (PostHog).
Lasts: Until you clear it
today-exp-*
Which version of a page layout you were shown, so it stays the same between visits and we can compare versions.
Lasts: Until you clear it

Other sites

Story images are often loaded from the publisher that ran them. That publisher’s server, or its network provider, may set its own cookies when the image loads (for example a Cloudflare __cf_bm cookie on the publisher’s domain). We do not control or read those cookies; your browser’s third-party cookie settings apply to them.

Changing your choice

Change your measurement choice at any time with Privacy choices, here or in the footer of any page. You can also clear site data in your browser settings, which resets everything above.