The AI Search Knowledge Base
How AI search works: engines, retrieval, citations, ranking signals, visibility and the future of search – explained clearly.
Short answer
AI search uses large language models together with search indexes to answer questions directly, usually citing web sources. This knowledge base explains how it works and how businesses can stay visible.
Start with the basics, then explore each platform in depth.
The AI Search knowledge base
What Is AI Search?
What AI search is, how it differs from traditional search and which platforms offer it.
ExploreHow AI Search Works
Step by step: how AI search turns a question into an answer – retrieval, entities, passages, generation and citations.
ExploreAI Search Citations
What AI search citations are, why they matter and what makes a page more citable.
ExploreThe Future of AI Search
Where AI search is heading – agents, multimodal search and measurement – and how businesses can prepare.
ExplorePlatform guides
Google AI SEO
Optimise for Google’s AI Overviews and AI Mode with indexable, helpful, well-structured content and strong entity signals.
ExploreChatGPT SEO
ChatGPT SEO services: OAI-SearchBot access, citation-ready content and brand visibility monitoring for ChatGPT search.
ExploreGemini SEO
Gemini SEO: improve how Google’s Gemini assistant finds and represents your brand through strong Google Search foundations and entity clarity.
ExplorePerplexity SEO
Perplexity SEO: crawler access, source-worthy content and citation tracking for Perplexity’s answer engine.
ExploreSee how AI search understands your business
Get an AI Search Visibility Audit covering Google, Google AI features, ChatGPT, Gemini and Perplexity – with a prioritised action plan.