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.
lf19-geckocdn.tiktokcdn-us.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
The hostname pattern (lf19-, 'geckocdn', tiktokcdn-us.com) matches ByteDance/TikTok content-delivery infrastructure, and 'gecko' is ByteDance's resource/package delivery service, so this looks like first-party affiliate CDN asset fetching for CapCut rather than a tracking endpoint. A CDN asset request does expose IP and request metadata, but that alone does not clearly establish a data flow beyond the empty label, so I cannot conclude it is undisclosed from what is provided.
OpenAI — cdn
The hostname is a TikTok CDN domain and most likely serves content or application assets. A CDN request alone does not establish collection or sharing of user data, so undisclosed data flow cannot be determined from the provided information.
Google Gemini — cdn
The domain is a content delivery network operated by ByteDance/TikTok for delivering static application assets and web resources. Mere content delivery via a CDN does not inherently imply undisclosed personal data collection.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
com.lemon.lvoverseas | — | 3 | 3 | 2026-07-30 |
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 Tell us what to re-check — a misattributed domain, an outdated classification, a claim about your own app — and a human will review it.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.