Microsoft Clarity sets 2 cookies on websites that load its scripts. Below is the full list with purpose, expiry, and whether each one needs GDPR / ePrivacy consent.
_clckAnalyticsExpires: 1 yearPersists the Clarity user ID and preferences unique to the site, so visits to the same site are attributed to the same user.
_clskAnalyticsExpires: 24 hoursConnects multiple Clarity page views by a user into a single session recording.