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.
c.amazon-adsystem.com
classified as advertising · 2
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 — advertising
amazon-adsystem.com is Amazon's advertising domain (Amazon Publisher Services / Amazon ad serving), and the 'c.' host is used for ad requests and click/impression handling, so this is an advertising endpoint rather than first-party or CDN infrastructure. Because the app's label declares no data collection or sharing at all, a contact to a third-party ad exchange implies at least device/network identifier flows that the label does not cover; note we cannot verify from the given data what payload was actually sent.
OpenAI — advertising
c.amazon-adsystem.com is an Amazon advertising-domain endpoint. The app declares no data collection or sharing, so this advertising contact appears undisclosed.
Google Gemini — advertising
The domain c.amazon-adsystem.com is operated by Amazon for ad serving and tracking. Contacting this advertising domain while declaring no data collection or sharing on the app store privacy label indicates an undisclosed data flow.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Speedtest by Ookla | not in label | 4 | 13 | 2026-07-28 → 2026-07-29 |
com.nypost.iphone | — | 4 | 5 | 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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