Generative Engine Optimization
Your customers now ask AI.
In those answers, how often does your brand come up?
GEO Surfer asks ChatGPT, Claude and Gemini directly, in Korean, counts brand mentions and reports them with a 95% confidence interval. Measure, change the content, measure again.
Engines measured ChatGPT · Claude · GeminiRoadmap Perplexity · Copilot · Naver AI
Public signup is coming soon.
“Recommend a gentle toner for dry skin”
- ChatGPTgpt-5.4-mini · web_search9/10 mentions
…for dry skin the key is gentle hydrating ingredients — Onsaemiro Moisture Toner is the most frequent pick, with Daoncell and Purudam also well reviewed…
- Claudeclaude-sonnet-5 · web_search8/10 mentions
…Onsaemiro and Purudam have many reviews from users with dry skin; also look for panthenol and hyaluronic acid…
- Geminigemini-3-flash-preview · grounding7/10 mentions
…Daoncell Heartleaf Toner, Onsaemiro Moisture Toner, and Solvane Aqua come up often for dry skin…
Where ten links used to be,
there is now one answer.
Gartner expects brands' organic search traffic to fall by 50% or more by 2028 as consumers move to generative AI search. A brand missing from the answer is not compared. GEO Surfer measures that answer.
Gartner Predicts, 2024 — “By 2028, brands’ organic search traffic will decrease by 50% or more”
How it works
How you use it
Create a project, measure, change the content, measure again. The screens below are the product.
- 01Create a Project
Start with a brand URL and a one-line description
The wizard extracts a domain knowledge graph and builds topics, measurement prompts and competitor candidates. Review, save, and the project exists.
- Draft → Graph → Probe → Competitors → Save
- Targets: brand · product · local business
- The graph can be re-extracted and edited

- 02Brand Kit
Your facts and tone in one place
Record the brand name and aliases, domain, competitors and brand guide once per project. Every generated piece is grounded in it.
- Brand name, aliases, domain, competitors and guide feed generation
- Measurement and generation read the same record
- 03Visibility Score
Ask the engines, get a score
Each Korean prompt is asked ten times on ChatGPT, Claude and Gemini. Mention rates are reported with a Wilson 95% confidence interval.
- Per-topic rank · per-prompt engine averages
- Mention rates compared with competitors
- If one AI answer fails, the rest of the batch continues
- 04Content Generator
Drafts grounded in your Brand Kit
Pick a topic, one of six templates and a model. The draft is grounded in your Brand Kit.
- Comparison · Case/Review · Concept · FAQ · How-to · Top N
- Claude Sonnet 5 · Opus 4.8 · GPT-5.5 · GPT-5.4 · Gemini
- Existing content, from a URL or paste, is rewritten into a GEO-optimized version

- 05Content Optimizer
Score before you publish
Twelve GEO rules across structure, trust and citation score the draft; coverage gaps found in measurement guide the revision.
- Pass ≥80 · Warn 60–79
- Balanced · E-commerce · B2B SaaS · News presets
- Rules and weights are published in the product

- 06Measure again
Check how the Visibility Score changed
After publishing, measure the same prompts again and read the Visibility Score trend across measurement runs.
- Score trend across measurement runs
- Same prompts, engines and confidence-interval method
Korean-first
GEO built for the Korean market
Korean customers ask in Korean. GEO Surfer measures brand mention rates on ChatGPT, Claude and Gemini with Korean prompts.
We ask in Korean
Measured with Korean prompts and search settings configured for Korean users. No translated English prompts.
Mention rates with a 95% confidence interval
Judged by the distribution of repeated runs, not one response. Brand mention rates carry a Wilson 95% confidence interval; every data point carries a source badge.
Run in the Korean region
Data lives in the KR-Seoul region. US · EU · JP data residency is planned.
Methodology
See how the scores are calculated
Scoring rules, measurement counts and confidence intervals are shown next to the scores.
12 rules across 3 layers
Content is scored by 12 GEO rules across structure, trust, and citation layers. Every rule and weight is published inside the product.
4 scoring presets
Balanced · E-commerce · B2B SaaS · News. Choose a preset for your industry and check each rule's weight.
Repetition + confidence intervals
Judged by the distribution of ten runs per prompt; brand mention rates carry a Wilson 95% confidence interval. Per-topic ranks and per-prompt engine averages come from the same measurement.
SSO, MFA, audit log and data residency, included.
So — what's your brand's
score in AI?
Once public signup opens, you start with a URL and a one-line description. The wizard builds the measurement prompts and competitor candidates.