Short answer. Choose a GEO agency by evaluating its measurement system before its tactics. A credible agency defines the prompts it will track, the engines it will test, how often it repeats queries, how it separates mentions from citations, and how it connects AI visibility to business outcomes. Then assess depth across technical SEO, answer-ready content, entity clarity and third-party authority. Avoid providers that guarantee ChatGPT rankings.
Key takeaways
- Judge a GEO agency on its measurement protocol first: a fixed prompt set, named engines, repeated runs and raw prompt-level data.
- Google states that no additional requirements are needed to appear in AI Overviews or AI Mode, so SEO remains the foundation of GEO.
- Guaranteed ChatGPT or Gemini rankings are the biggest red flag, because AI answers vary between runs and are not fixed positions.
Why should GEO measurement be evaluated before tactics?
Measurement is the most important procurement question because GEO has no equivalent of a fixed Google ranking. Answers vary between runs and engines use different retrieval sources, so an agency must define a stable protocol before claiming improvement.
Generative engine optimization (GEO) is the practice of making a brand more likely to be mentioned, cited or recommended in answers generated by AI systems such as ChatGPT, Gemini, Perplexity and Google AI Overviews.
| Metric | What it means | Procurement question |
|---|---|---|
| Mention rate | Brand named in tracked prompts | How many prompts and repeated runs? |
| Citation rate | Brand-owned page linked or cited | Which engines expose citations? |
| Share of voice | Brand versus competitors | Is the prompt set buyer-relevant? |
| Recommendation position | Relative shortlist order | How is variability handled? |
| Accuracy or sentiment | Whether the brand is described correctly | Who reviews qualitative output? |
| AI referrals | Traffic from AI sources | How is attribution implemented? |
What should prompt tracking look like?
Prompts should mirror real customer questions rather than a list created to make the brand look good. A useful taxonomy covers category discovery, use cases, comparisons, alternatives, implementation, pricing, trust and problems.
- Group prompts by buyer intent.
- Track competitors in the same runs.
- Use the same core prompt set over time.
- Record engine, date, geography and model version where possible.
- Repeat a subset of prompts to estimate volatility.
- Keep raw outputs available for qualitative review.
How important is traditional SEO to GEO?
Traditional SEO is the foundation of GEO. Google states that the best practices for SEO remain relevant for AI features in Google Search and that there are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary.
A GEO agency that ignores crawlability, indexing, site architecture and high-quality content is missing the base layer. OpenAI likewise says site owners should ensure OAI-SearchBot, the crawler behind ChatGPT's search features, is not blocked in robots.txt if they want content cited and linked. An agency that cannot explain which AI crawler does what is not ready for technical work.
What content capabilities should a GEO agency have?
A GEO agency should be able to produce question-led pages with direct answers, comparison pages, original research, evidence-backed product pages and a freshness process. The goal is content other sites want to cite.
- Question-led educational pages with concise direct answers.
- Comparison and alternative pages for commercial evaluation.
- Original data and research that others can cite.
- Product or service pages with explicit use cases and limitations.
- Statistics and claims linked to primary sources.
- Content updates for freshness and factual accuracy.
- Editorial quality strong enough to earn external references.
Ask how the agency's GEO content strategy prioritizes these.
How should entity optimization work?
Entity optimization makes the brand easy to identify and describe consistently. The agency should review organization, product, leadership, category and location information across the website and third-party profiles to remove ambiguity.
| Entity issue | Example fix |
|---|---|
| Category ambiguity | Clarify exactly what the company sells |
| Product naming inconsistency | Standardize names across site and profiles |
| Missing relationships | Link company, products, founders and locations clearly |
| Outdated facts | Update pricing, markets, features and leadership |
| Unsupported differentiator | Add evidence or remove the claim |
How should GEO case studies be evaluated?
A GEO case study is credible only when it states the baseline, the measurement window, the engines tested and the changes made.
- Named client or enough context to understand the category.
- Baseline prompt set and baseline visibility.
- Exact measurement window.
- Engines included.
- Changes implemented.
- Outcome by metric, not a vague visibility score.
- Disclosure when results are company-reported.
How should GEO pricing be compared?
Pricing varies because scope ranges from measurement-only consulting to a full SEO, content and digital-PR program. Compare deliverables and internal effort rather than the monthly fee alone.
| Pricing component | What to clarify |
|---|---|
| Audit or setup | Prompt research, technical baseline, competitor mapping |
| Tracking software | Included or separate license |
| Content | Number and type of pages and editorial level |
| Technical implementation | Advice only or hands-on fixes |
| Digital PR | Included, separate or not offered |
| Reporting | Prompt-level dashboard or summary only |
| Contract term | Pilot, monthly or minimum commitment |
Managed GEO services that bundle measurement, content and technical work cost more than a dashboard alone.
What should a 90-day pilot include?
A 90-day pilot should include a baseline, technical fixes, one content cluster, one authority initiative and repeated measurement.
- Baseline measurement before implementation.
- Technical accessibility fixes.
- One priority content cluster.
- At least one comparison or buyer-focused page.
- One original-evidence or authority-building initiative.
- Repeated AI visibility measurement.
- A written explanation of what moved, what did not and what should happen next.
What questions should you ask a GEO agency?
Ask ten questions that expose the agency's measurement method, technical scope and limits.
- What exact prompt set will you track and how was it selected?
- Which engines do you measure: ChatGPT, Gemini, Google AI features, Perplexity, Claude or others?
- How do you reduce random variation in AI answers?
- Can I see the raw prompt-level data behind your visibility score?
- What technical work will you perform on my site?
- How will you improve third-party authority, not just on-site copy?
- What will you publish or change in the first 90 days?
- Can you show a case study with baseline, time window and measurement method?
- How do you report AI referral traffic or assisted pipeline where possible?
- What do you explicitly not guarantee?
Compare the answers against the published list of AEO and GEO agencies and the wider set of AEO and GEO providers.