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.
cf.bstatic.com
classified as cdn · 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 — cdn
bstatic.com is Booking.com's own static-asset domain, and the 'cf.' host is consistent with a CDN edge serving images and other static content for the app, so it is a first-party content delivery endpoint rather than a tracking or ad service. Serving app assets does not imply a data flow beyond the collection and sharing categories the label already declares.
OpenAI — cdn
The bstatic.com domain is commonly used for Booking.com static content delivery, and the cf subdomain appears consistent with CDN infrastructure. A CDN contact alone does not establish a data flow beyond the app's declared collection or sharing categories.
Google Gemini — cdn
bstatic.com is Booking.com's content delivery network domain used to host static assets, representing standard first-party infrastructure rather than undisclosed tracking.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Booking.com: Hotels & Travel | — | 4 | 16 | 2026-07-28 → 2026-07-29 |
The corpus grows one report at a time: donate your App Privacy Report — anonymous by design.
Think something here is wrong?
Evidence and research improve when people push back. Tell us what to re-check — a misattributed domain, an outdated classification, a claim about your own app — and a human will review it. Responses can take up to 30 days.