
Updated by
Updated on Sep 11, 2026
GEO performance should be measured as a funnel: prompt coverage → mentions → recommendations → citations → visits → business outcomes. No single visibility score can replace the component metrics or the raw AI answers behind them.
| Metric | Formula | Decision it supports |
|---|---|---|
| Mention rate | Answers naming the brand ÷ valid answers | Are we present? |
| Citation rate | Answers linking to our domain ÷ valid answers | Are we used as a source? |
| Recommendation rate | Answers actively recommending us ÷ valid answers | Are we considered? |
| Share of voice | Our qualifying mentions ÷ all tracked-brand mentions | Are we winning versus competitors? |
| Prompt coverage | Prompt clusters with a qualifying mention ÷ target clusters | Where are the gaps? |
| Source share | Citations from a domain ÷ all extracted citations | Which publishers shape the answer? |
| Accuracy rate | Correct brand descriptions ÷ reviewed descriptions | Is visibility trustworthy? |
| AI conversion rate | Qualified conversions ÷ attributable AI sessions | Does visibility create value? |
Exclude failed or empty runs and report the count. Keep branded and unbranded prompts separate. Do not compare 100 broad prompts this month with 30 commercial prompts last month.
Every score must link back to prompt, platform, date, country, language, response and citation URLs. This allows analysts to audit extraction errors and narrative changes.
Generated prose has no universal “rank 1.” Record lead recommendation, primary shortlist, secondary mention or source-only citation, but do not pretend those categories equal a traditional SERP position.
AI responses are non-deterministic. Trend direction requires multiple runs with controlled settings. Show sample size and confidence or variability where possible.
Mention and citation rates are leading indicators. AI referral sessions, assisted conversions, branded search, pipeline and revenue are outcomes. OpenAI reports that ChatGPT referral links include utm_source=chatgpt.com, which helps attribution; see the official publisher FAQ. Still, no-click influence and missing referrers mean analytics will not capture every exposure.
Build a dashboard with three levels:
Assign each prompt an intent weight—for example 5 for purchase comparisons, 3 for solution research and 1 for broad education. Multiply qualifying visibility by the weight, then divide by total possible weight. Publish the weights so stakeholders understand what the score means.
Never use invented universal benchmarks. Establish a 28-day baseline, segment by engine and intent, and compare the same prompt set over time.

Dageno connects answer-level evidence with prompt coverage, competitors, citations and content opportunities. Teams can diagnose whether a falling score came from lost mentions, different cited domains, negative framing or a changed prompt mix—then connect the intervention to traffic and conversions.
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There is no universal single metric. Recommendation rate matters for consideration, citation rate for source authority and qualified conversions for business impact.
Daily for launches or crises, weekly for active programs and monthly for executive reporting. Keep the prompt set controlled.
No. It misses no-click influence and cannot explain why an answer included or excluded the brand.

Dageno is the research and insights team at Dageno AI, publishing industry reports and expert analysis on AI Search Visibility, Generative Engine Optimization (GEO), and AI-powered search discovery.
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