Which core KPIs should you track to evaluate and optimize your GEO strategy?

If you're starting out with GEO (Generative Engine Optimization), there's no need to track twenty metrics. Four families of KPIs are enough to answer three essential questions: am I visible in AI answers, how am I presented there, and does it pay off? Here are those core KPIs, what they measure, and how to act on each.

1. Citation rate: are you visible?

The citation rate is the starting point. Across a set of questions your customers actually ask, it measures the share of AI answers where your brand is cited or recommended. A rate of 0% means you're invisible; every point gained is a chance to appear at the moment of decision.

To improve it: answer your customers' real questions directly and factually, with clear headings and passages that are easy to extract.

2. AI share of voice: where do you stand against competitors?

Being cited is good; being cited more than your competitors is better. AI share of voice compares your citation frequency to that of other players on the same queries. It's the metric that turns an isolated measurement into a competitive position.

To improve it: cover more queries than your competitors and multiply the reliable sources that talk about you.

3. Sentiment and accuracy: how are you presented?

Showing up isn't enough: you also need to be presented well. Two qualitative KPIs matter here.

• Sentiment: the tone of the mention (positive, neutral or negative).
• Accuracy: how correct what the AI says about you is (name, offering, figures).

A citation paired with wrong information can do more harm than good. To improve them: cultivate positive reviews and content, and publish consistent, up-to-date information everywhere (site, profiles, directories, Wikidata).

4. AI referral traffic: does it pay off?

Finally, AI referral traffic measures the visits arriving on your site from ChatGPT, Perplexity and the like. It's the most concrete link between your AI visibility and your business. You can track it easily in an analytics tool by filtering sources.

To improve it: make people want to click, with high-value content and a memorable brand.

In short

KPI	Abbr.	The question it answers
Citation rate	CR	Am I visible in AI answers?
AI share of voice	SoV	Where do I stand against competitors?
Sentiment	SENT	Am I presented positively?
Accuracy	ACC	Does the AI get me right?
AI referral traffic	ART	Does it bring visitors?

How to track these KPIs in practice

You can start manually: list 10 to 20 of your customers' key questions, ask them regularly to ChatGPT and Gemini, and each time note citation, position, sentiment and accuracy. That's enough for a first snapshot, but time-consuming and hard to compare over time. A platform like Sapian Metrics automates these tests, tracks the trend and calculates your share of voice against competitors.

Conclusion

To evaluate and optimize your GEO strategy, start simple: citation rate, share of voice, sentiment and accuracy, AI referral traffic. These four families of KPIs tell you where you stand and where to act. To get your first measurement effortlessly, start with a free audit of your visibility in AI answers with Sapian Metrics.