`_clsk`

Joins the pages you view into one Clarity session recording.

Owner: Microsoft Corporation
Matches: The exact name _clsk
Needed to Work: No. The site works without it.
Confidence: Verified
Source: https://learn.microsoft.com/en-us/clarity/setup-and-installation/clarity-cookies
Last Reviewed: 2026-09-28

Which Sites

Any site. The name is specific enough to identify this cookie wherever it appears.