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.
cdn-hs-graphql-dus.trivago.com
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. 2 of 3 models answered, overall confidence high — no answer from anthropic (HTTP 529). A human reviewed this domain's claims before anything here published.
OpenAI — first-party
The domain is a trivago.com subdomain and most likely serves Trivago's own GraphQL application API. The label declares broad collection and sharing categories consistent with app-service requests, so this contact is not clearly undisclosed.
Google Gemini — first-party
The domain is a first-party subdomain belonging directly to Trivago for its own application backend and GraphQL endpoints.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| trivago: Compare hotel prices | — | 4 | 12 | 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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