GEO Performance Measurement (LLM Audit) Make your share of AI search answers visible.
With clear intelligence rather than vague guesswork, we analyze omission patterns and competitor share across the 5 major AI engines, delivering a practical diagnostic guide to close your brand citation gap.
Korea's only comprehensive diagnosis based on 7 leading AI sources
Conventional performance metrics like search share or SEO optimization scores cannot fully represent your brand's share in the AI search environment.
238lab precisely identifies the 'citation blind spots' hidden within the data and presents practical response strategies for your brand to earn AI's confidence.
Citation share check across LLM engines, Google AI Overview & Naver AI Summary
We analyze the integrated citation rate across the five major LLM engines including ChatGPT, Claude, Gemini, Perplexity, and Grok, as well as Google AI Overview and Naver AI Summary, which are essential in the Korean marketing environment. Through a comprehensive survey of diversified engines, we quantify the brand's actual AI market Share of Voice (SoV).
Brand citation rate and competitor tracking data
Rather than stopping at a standalone brand diagnosis, we precisely track the citation gap with major competitors in the industry. By comparing how often and to what degree AI selects competitors instead of your company in specific question contexts, we identify your relative position in the market and the reality of 'lost share'.
Analysis of operating channels and content direction of top-cited competitors
We reverse-engineer the channels through which top citation-share competitors supply trusted data to AI. By analyzing the structure, keyword placement, and distribution channel characteristics of content that AI adopts as the 'answer', we present practical directions the brand can benchmark immediately.
Hybrid website SEO and GEO diagnosis with an optimization roadmap
We simultaneously diagnose the alignment between technical search optimization (SEO) and generative engine optimization (GEO). We identify technical flaws that cause AI to misread content and provide a content normalization guide and core asset optimization roadmap to rebound the brand's citation rate.
Curious about your objective GEO visibility share?
GEO Performance Measurement Report Plans
We analyze the types of visibility omissions occurring across major AI engines and the structure of competitor share, and provide an execution-focused diagnostic guide to close your brand citation gap.
| Plans | Light | Pro | Enterprise |
|---|---|---|---|
| Price | KRW 350,000 | KRW 700,000 | KRW 2,000,000 |
| Models Used in Analysis | GPT · Gemini · Naver AI Briefing · Google AI Overviews | GPT · Gemini · Perplexity · Grok · Claude · Naver AI Briefing · Google AI Overviews | GPT · Gemini · Perplexity · Grok · Claude · Naver AI Briefing · Google AI Overviews |
| Estimated Turnaround | Within 3 business days | Within 5 business days | Within 7 business days |
| Core Keywords | 1 | 3 | 5 |
| Sub-Keywords | 3 | 6 | 15 |
| Target Domains | 1 | 1 | 3 |
| On-Page (Technical) SEO Audit | O | O | O |
| Off-Page SEO Audit | O | O | O |
| GEO Improvement Strategy Guide | O | O | O |
| Top-Cited Competitor Strategy Analysis | X | O | O |
| Original Prompts - Response Data | X | O | O |
Detailed AI Models Used Across All Plans
- GPT-5.4-mini / GPT-5.4-nano (tracking prompt generation)
- Claude Sonnet 4.6
- Gemini 2.5 Flash
- Perplexity Sonar Pro
- Grok-3