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.
a.co
classified as first-party · 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 — first-party
a.co is Amazon's own short-link domain, so contact from the Amazon Shopping app is first-party infrastructure rather than a third-party tracker. Amazon's label already declares extensive first-party collection including app interactions and device IDs, so nothing here implies an undeclared data flow.
OpenAI — first-party
a.co is commonly used as an Amazon-owned URL shortener, making this most likely first-party for Amazon Shopping. The provided privacy label declares broad collection and sharing categories, and the domain contact alone does not establish an uncovered data flow.
Google Gemini — first-party
a.co is an official URL shortener owned and operated by Amazon, making it a first-party domain for the Amazon Shopping app. Contact with first-party infrastructure is expected and consistent with the app's disclosed operations.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Amazon Shopping | — | 3 | 3 | 2026-07-30 |
The corpus grows one report at a time: donate your App Privacy Report — anonymous by design.
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