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Curated LG TV Telemetry Blocklist (Safe & Strict Tiers) — Audited from 267k DNS queries on an LG G1

Hi everyone,

Following the recent security disclosures regarding smart TV telemetry and LAN snooping, I decided to do a root-level network audit of my LG G1 running webOS.

After auditing 44,800 packets and a 267,000-query DNS log, I observed several interesting behaviors:

  1. webOS daemons query roughly 36 LG domain families, firing heavy telemetry bursts mid-boot.

  2. The TV’s internal DNS stub completely bypasses local `/etc/hosts` modifications on the device, meaning network-level sinkholing (Pi-hole / AdGuard Home) is mandatory.

  3. Fallbacks to public resolvers (8.8.8.8 / 1.1.1.1) occur when services fail, so blocking outbound Port 53/853 at the router level is required for true isolation.

To provide a clean solution that doesn't break streaming for household members, I published an open-source blocklist:

GitHub: https://github.com/furkan-bayrak/lg-tv-blocklist

Features:

– Two Tiers:

– SAFE: Kills ACR (alphonso.tv), telemetry beacons (cdpbeacon), ad networks (lgsmartad), and voice data. Zero app breakage (Netflix, Prime, HBO, LG Store tested).

– STRICT: Adds update hosts (snu/su.lge.com), ThinQ IoT sync, and LG Channels.

– Multiple Formats: Native Adblock syntax (`||domain^` with subdomain matching for AdGuard Home), Plain domain lists (for Pi-hole / NextDNS), and Hosts format (`0.0.0.0`).

– Fully Annotated: Every entry has an inline comment documenting its exact purpose and capture evidence.

– Dual License: CC BY 4.0 for list data, MIT for build scripts.

Looking for collaborators!

I am only one person auditing an EU-model G1. LG updates regional endpoints and firmware constantly. If you run a Pi-hole/AGH with an LG TV, I'd love your help testing, verifying domains, and reviewing PRs to help maintain the repository.

Source: r/Adguard · by /u/Sucuk-san

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