Clarity is a web analytics service that tracks and reports website traffic.
Service URL: clarity.microsoft.com (opens in a new window)
CLID
Identifies the first time Microsoft Clarity saw this browser on a site using Clarity.
1 year
ANONCHK
Indicates whether the Microsoft MUID identifier is transferred to an advertising identifier. Clarity does not use that advertising identifier, so this is normally set to 0.
10 minutes
MR
Indicates whether the Microsoft MUID browser identifier should be refreshed.
7 days
MUID
Identifies unique browsers visiting Microsoft services and is used for advertising, site analytics and other operational purposes.
390 days
SM
Used to synchronise the Microsoft MUID identifier across Microsoft domains.
Session
SRM_B
Microsoft/Bing browser identifier used for advertising-related measurement and recognition.
390 days
_clsk
Connects multiple page views by a user into a single Clarity session recording.
1 day
_clck
Persists the Clarity User ID and preferences, unique to that site is attributed to the same user ID.
12 months
