Microsoft Clarity Checker – Test Installation

About this tool

Check whether Microsoft Clarity’s script and project ID appear in public HTML. This tool cannot confirm session recordings, heatmaps, or data receipt inside the Clarity dashboard.

How it works

• Fetch public HTML.
• Detect clarity.ms script references and project IDs.
• Flag duplicate project IDs and likely GTM-only installs.
• Provide an admin validation checklist.

What it checks

• Direct Clarity script detection
• Project ID extraction
• Duplicate project IDs
• Signals that Clarity may be loaded only via GTM

What it cannot check

• Whether Clarity is receiving sessions
• Recording/masking settings
• Consent gating after interaction

Common problems

• Clarity installed both directly and via GTM
• Wrong project ID on staging vs production
• Assuming GTM detection means Clarity tag is published

Example output

Microsoft Clarity: detected
Project IDs: abcdefghij

FAQ

Can this prove Clarity is recording sessions?

No. Confirm recordings and filters in the Clarity dashboard.

What if only GTM is detected?

Clarity may still be published inside GTM. Open the container and Clarity UI to verify.

Related tools and next steps

• Tracking Audit
• GTM Checker