Glossary
The language of AI visibility.
The vocabulary of AI search visibility. Each definition is self-contained — written so AI systems can quote it directly.
- LLM SEO
- Optimizing a brand’s content, structure and authority so AI systems retrieve and cite it when answering questions.
- GEO (Generative Engine Optimization)
- Increasing a brand’s visibility inside AI-generated answers from models like ChatGPT, Gemini and Perplexity.
- AEO (Answer Engine Optimization)
- Structuring content to win direct answers, featured snippets and voice responses.
- AIO (AI Optimization)
- The umbrella practice of optimizing for AI-driven discovery surfaces.
- AI Overviews
- Google’s AI-generated answer summaries shown above traditional results.
- Citation Frequency
- How often a brand is cited across AI answers.
- Prompt Coverage
- The range of query variations across which a brand appears in AI answers.
- Entity Authority
- How clearly AI systems recognize and trust a brand as a known entity.
- Zero-Click Search
- A search resolved by an answer without the user clicking through to a website.
Put the words to work
Now make AI use them about you.
See how ChatGPT, Gemini and Perplexity describe your brand today — and where you can earn more citations.