Proof Studies
A proof study is an evidence-backed examination of measurement behavior on a real site: what fired on the wire, what it means, and where external observation stops. Studies are published anonymized — the site’s address and its identifiers are withheld.
We do not publish customer reports. Your report is yours; a scan you run is not material for this page.
What a study contains
- The observation, stated exactly as strongly as the evidence supports.
- The request receipts behind it: the beacons on the wire, timestamped.
- Independent verification, in a browser separate from our own scanner.
- The boundary: what external observation cannot prove, and what access would.
- A date. Measurement changes silently; a study is true as of when it was verified.
Published
- Anonymized scan report: duplicate GA4 pageviews — verified 2026-07-29
- Anonymized scan report: verified clean — verified 2026-07-20
See what a report says about a site you manage: run a free scan.