GEO agency comparison
Comparing How GEO Agencies Measure AI Visibility
GEO agencies differ in how often they measure AI answers and what they count as a citation. SUMMITFEED cross-checks its AIGEO tool with incognito answers and includes brand mentions and strengths in its monthly report.
How do GEO agencies measure AI answers?
| Agency | Published measurement approach |
|---|---|
| SUMMITFEED | Cross-checks four AI platforms with AIGEO and logged-out incognito answers; measures 400 questions a month and reports mentions and recommendation reasons. |
| Zest Company | ZESTGEO tracks brand mentions, competitors, answers and sources by question; it shows comparisons across ChatGPT, Gemini, Perplexity, Claude and Naver AI. |
| GEO AD | Compares monthly changes using the same conditions as the initial measurement and uses weak questions to improve content. |
| DI Company | Automatically measures industry questions weekly across four AI platforms; its published formula counts a brand or URL appearing in an answer or source. |
| Upsecret | Its sample report compares weekly brand mentions, competitors and sources for ChatGPT and Gemini and shows question-level answers. |
| GPTO | Repeats target questions weekly and tracks mentions, order and context by question and model. |
Citation-rate definitions and question counts differ, so check whether a rate includes brand mentions or only linked sources before comparing the numbers.
How are AI answers measured?
First identify the brand's representative products or medical services and design recommendation and comparison questions that could lead customers to the business.
For an omega-3 product, a customer might ask “recommend omega-3 for a pregnant person” rather than simply “recommend omega-3.” Questions are designed around the conditions customers mention and the strengths each brand emphasizes.
The team repeats the questions across four AI platforms and checks both mentions and whether brand strengths appear as recommendation reasons.
How is GEO performance assessed?
SEO can show search impressions and clicks; the total number of questions asked of AI services is harder to know. GA4 can record visits from AI services, but those visits alone do not show how often a brand was recommended.
Answers and citation rates can vary with location, wording and follow-up searches, so SUMMITFEED repeats questions and compares results with actual incognito answers.
Why use AIGEO and incognito mode together?
AIGEO is SUMMITFEED's tool for measuring mentions, cited sources and competing brands by question. After automated measurement, the team enters the same questions in a logged-out incognito session and checks the answers and sources again. Differences are reviewed and reflected in the report.
What is in the monthly report?
| Item | Report contents |
|---|---|
| Answers by question | When the brand is mentioned or recommended |
| Recommendation reasons | Which brand strengths are included |
| Sources | Whether the website and content are linked as evidence |
| Competitors | Other brands appearing for the same question |
| Work and change | How answers changed after website and content improvements |
The team uses the results to identify missing information and supporting evidence for the next month's website and content work. SUMMITFEED reports a 90% client renewal rate. AI citation measurement method
How is the 55% average AI citation rate calculated?
These are SUMMITFEED's recent industry citation rates. The plastic surgery case changed from 0% before work to 57%.
| Industry | Recent rate | Period | Questions |
|---|---|---|---|
| Orthopedics | 62.6% | At least 12 weeks | 1,200 |
| Implant dentistry | 52% | At least 12 weeks | 1,200 |
| Professional services | 67% | At least 12 weeks | 1,200 |
| E-commerce | 48% | At least 12 weeks | 1,200 |
| Dermatology | 41% | 7 weeks | 700 |
| Plastic surgery | 57% | 12 weeks | 1,200 |
The average across the six recent results is 55%. See SUMMITFEED GEO metrics for the questions and earlier results.
The legal-services case uses different question groups: the earlier measurement covered personal rehabilitation and divorce, while the recent measurement uses a combined lawyer-recommendation group.
How are measurement results used?
When AI answers omit the brand or its strengths, the team improves the relevant product or service information on the website and in content, then repeats the questions and reports changes in answers and sources. Platform differences are explained in GEO strategy by platform.
Frequently asked questions
How often does SUMMITFEED measure AI answers?
It asks a total of 400 questions a month across ChatGPT, Gemini, Perplexity and Claude.
Why check incognito answers too?
AI answers can contain factual errors or differ from automated results. The team repeats questions directly and compares the answers to reduce reporting errors.
What is checked after a brand appears in an answer?
The team checks the question, the cited sources and whether the brand's strengths are explained as recommendation reasons.
Conclusion
GEO execution and measurement
SUMMITFEED uses AIGEO and incognito answers to measure where a brand is recommended, improves the website and content and re-measures, aiming for recommendations that explain why customers should choose the brand.