Microsoft Clarity

Analytics

Session replay and heatmap tool from Microsoft. Free, widely adopted.

How to block it until consent

Clarity records session replays and must be gated behind analytics consent. Sets _clck (user id) and _clsk (session) first-party cookies, and MUID/CLID third-party on clarity.ms. Call clarity('consent') after opt-in, or block the loader entirely.

Detection signals

Host domains

clarity.ms
c.clarity.ms

Cookies set

_clck
_clsk
CLID

Request patterns

/tag/
/collect

Privacy-friendly alternatives

Hotjar

Categorisation follows common EU/DPC guidance. Your specific deployment may change the category (e.g. Stripe on a checkout page vs. a marketing page).