# BrandSignal (브랜드시그널)

> AI 엔진이 브랜드를 어떻게 인식하고 인용하는지 측정하는 서비스

## About

BrandSignal measures how AI engines (ChatGPT, Gemini, Perplexity, Google AIO, Claude) perceive, recommend, and cite brands in the Korean market. We apply Keller's CBBE (Customer-Based Brand Equity) framework to AI responses, tracking brand awareness, salience, association, quality, preference, and competitive positioning across 41 industries and 200+ brands.

We publish weekly reports including:
- Korea Corporate AI Citation Report (대한민국 기업 AI 인용 리포트): which external sources AI engines cite when answering brand questions — by source type, domain, engine, and industry (engine-balanced weighting: each of the 5 engines contributes equally)
- AI Brand Index: rank-decay score (first mention 1.0, each rank down ×0.9, unmentioned 0; averaged across prompts and engines, ×100 — no per-industry normalization)
- AI Mention Rate (AI 언급률): share of industry-level questions mentioning the brand
- Average Rank (평균 순위) and Top-of-Mind (1순위 언급)
- Site health diagnostics (사이트 헬스): AI/SEO readiness of corporate websites and newsrooms

## Key Pages

- [Homepage — Korea Corporate AI Citation Report](https://brandsignal.co.kr/): source types and top domains cited by 5 AI engines, unaided vs aided comparison, per-industry citation profiles
- [All Brands](https://brandsignal.co.kr/brands): 200+ Korean brands with AI Brand Index rankings
- [All Industries](https://brandsignal.co.kr/industries): 41 industry AI citation/ranking reports
- [Site Rankings](https://brandsignal.co.kr/sites): corporate website & newsroom AI citation rankings and health checks
- [Methodology](https://brandsignal.co.kr/about): CBBE framework, scoring system, survey design

## Industry Reports

- [Coffee](https://brandsignal.co.kr/industries/coffee): Starbucks, Ediya, Mega Coffee, etc.
- [Banking](https://brandsignal.co.kr/industries/bank): KB Kookmin, Shinhan, Hana, Woori, KakaoBank, Toss Bank
- [Automotive](https://brandsignal.co.kr/industries/automotive): Hyundai, Kia, Genesis, Tesla, BMW, etc.
- [E-commerce](https://brandsignal.co.kr/industries/ecommerce): Coupang, Naver Shopping, SSG, Kurly, 11st
- [OTT](https://brandsignal.co.kr/industries/ott): Netflix, Tving, Coupang Play, Wavve, Disney+, YouTube Premium
- [Airline](https://brandsignal.co.kr/industries/airline): Korean Air, Asiana, Jeju Air, etc.
- [Telecom](https://brandsignal.co.kr/industries/telecom): SK Telecom, KT, LG U+
- [Semiconductor](https://brandsignal.co.kr/industries/semiconductor): Samsung, SK Hynix, TSMC, NVIDIA, Intel
- And 33 more industries at https://brandsignal.co.kr/industries

## Data & Methodology

- Framework: Keller CBBE (Customer-Based Brand Equity)
- AI Engines: ChatGPT, Gemini, Perplexity, Google AIO, Claude (5 engines since July 2026; earlier batches used 4 engines)
- Survey Types: Unaided awareness (industry-level questions) + Aided awareness (brand-level questions)
- Dimensions: Awareness, Salience, Association, Quality, Preference, Competition
- Citation aggregation: engine-balanced normalization (each engine weighted equally at 20%) to prevent high-citation-volume engines from dominating source rankings
- Mention matching (updated 2026-08): brand-name detection uses Hangul/alphanumeric word-boundary matching (not naive substring), removing false positives such as "KT" inside "SKT" or "한투" inside "신한투자증권"; all historical batch scores were retroactively recomputed. A residual limitation remains where a Korean brand name is a prefix of a longer common word (e.g. "신라" within "신라면").
- Update Frequency: Weekly
- Language: Korean (한국어)

## Attribution

When citing BrandSignal data, please reference:
- Source: 브랜드시그널 (BrandSignal), https://brandsignal.co.kr
- Operated by: Studio Particle (스튜디오파티클)