This page aggregates measured, corroborated evidence: donors' iPhones recorded apps contacting this domain, every claim below was reported by separate accepted donations and published under a human verdict (later rows for an approved app inherit its verdict). A contact is a measurement, not an accusation — it does not show what data was sent.
www.googletagmanager.com
operated by Google LLC · classified as analytics · 1
Independent tracker databases attribute this domain to Google LLC (Google Tag Manager), associated with data such as property ID, app ID, referer — per TrackHAR (CC0).
What our research panel found AI-drafted · human-reviewed
We ask several independent AI models the same question and publish their answers separately — cross-vendor agreement is evidence against fabrication, and disagreement is worth seeing. 3 of 3 models answered, overall confidence high. A human reviewed this domain's claims before anything here published.
Anthropic Claude — analytics
googletagmanager.com is Google Tag Manager, Google's tag-management container used to deploy analytics and marketing tags; loading it sends at least device/network metadata to Google and typically fires downstream analytics tags. Since the app's label declares no collection and no sharing with third parties, this contact implies a data flow the label does not cover — though a reviewer should confirm the label truly states 'Data Not Collected' rather than simply being unavailable in this record.
OpenAI — analytics
www.googletagmanager.com is a Google Tag Manager domain commonly used to load analytics and measurement tags. The app declares no data collection or sharing, so this contact appears not covered by its privacy label.
Google Gemini — analytics
www.googletagmanager.com is owned by Google LLC and serves as a tag management system for tracking and analytics. Because the app does not declare any data collection or sharing, this contact appears undisclosed.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Speedtest by Ookla | not in label | 4 | 9 | 2026-07-28 → 2026-07-29 |
| trivago: Compare hotel prices | — | 4 | 8 | 2026-07-28 → 2026-07-29 |
| Booking.com: Hotels & Travel | — | 4 | 4 | 2026-07-28 → 2026-07-29 |
The corpus grows one report at a time: donate your App Privacy Report — anonymous by design.
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