Glossary
AI visibility glossary
Shared definitions for OpenCrawl, AI visibility, GEO, AEO, crawlers, and the metrics behind the score.
Looking for the product overview? Start with features,methodology, or theAI visibility guide.
- AI visibility
- How discoverable and citable a website is to AI crawlers and answer engines—covering crawl access, content signals, mentions, and recommendations.
- Generative engine optimization (GEO)
- Practices aimed at improving presence in AI-generated answers and summaries. OpenCrawl measures the crawl and answer evidence GEO work tries to influence.
- Answer engine optimization (AEO)
- Optimization for answer engines and AI search surfaces that return synthesized responses rather than only classic blue links.
- LLM visibility
- Whether large language models and AI assistants mention, cite, or recommend a brand for relevant queries.
- Crawl access
- Whether AI bot user-agents are allowed and able to fetch your pages, based on robots.txt and live request outcomes.
- Content readiness
- Whether a page exposes usable HTML and discovery signals such as titles, meta descriptions, Open Graph, JSON-LD, headings, sitemaps, and llms.txt.
- Buyer-intent prompt
- A neutral query written like a prospect looking for a solution category, used to measure organic mention and recommendation rates.
- Mention rate
- Share of evaluated prompts where the target brand or domain appears in the answer or result set.
- Recommendation rate
- Share of evaluated prompts where the target is positioned as a suggested or preferred option—not merely named.
- Citation
- A linked or attributed source that an AI or search system associates with an answer. OpenCrawl records citation-like evidence when providers expose it.
- llms.txt
- A root-level plain-text file that summarizes a site for AI systems. See the OpenCrawl guide to llms.txt.
- GPTBot
- OpenAI’s training crawler user-agent. OpenCrawl treats GPTBot access as a major crawl-access signal.
- OAI-SearchBot
- OpenAI’s search crawler associated with ChatGPT search retrieval.
- Common Crawl
- A public web crawl archive often used in training corpora. OpenCrawl checks whether a domain appears there as a training-presence signal.
- OpenCrawl
- An AI visibility measurement product at opencrawl.fun that audits crawler access and measures brand presence across ChatGPT and open-web buyer-intent prompts.