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.
mparticle.weather.com
classified as analytics · 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 — analytics
The host is a subdomain of the app publisher's own domain (weather.com, The Weather Company), but the 'mparticle' label strongly suggests a first-party-delegated endpoint for the mParticle customer data platform, an SDK used for event collection and routing — so I classify it as analytics/CDP rather than pure first-party, while noting I cannot verify the actual DNS delegation or operator from the data given. Either way, the app's label declares collecting and sharing user IDs, device IDs, app interactions, and precise location, which covers the data flow such an endpoint would imply.
OpenAI — analytics
The mparticle subdomain strongly suggests mParticle, a customer-data and analytics platform, but ownership is not provided. The app's label declares broad collection and sharing including identifiers, interactions, diagnostics, and location, so this contact is not clearly undisclosed.
Google Gemini — analytics
The domain mparticle.weather.com is a first-party subdomain of weather.com hosting mParticle's customer data platform for analytics and data routing. The app explicitly declares collecting and sharing user identifiers, interactions, and diagnostic data, covering this data flow.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| The Weather Channel | — | 4 | 38 | 2026-07-28 → 2026-07-29 |
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