resources
Research on how AI search actually works.
Free reports synthesized from public research and our own audit pipeline. Every number cites a primary source — verify whatever you want.
Industry report · 2026
The State of AI Search
Where AI search stands in 2026 — usage, share-of-discovery shifts, CTR impact when AI Overviews appear, and how the buyer journey is moving faster than most teams realized.
- 900M weekly active users on ChatGPT
- 35% of US consumers use AI for product discovery
- Organic CTR down 61% when an AI Overview appears
Attribution index · 2026
AI Citation Index
Which sources do AI engines actually cite? An attribution-first ranking of the most-cited domains across ChatGPT, Claude, Gemini, Perplexity, and AI Overviews — synthesized from public studies covering 30M+ sources and 100M+ citations.
- Reddit and YouTube top almost every engine
- LinkedIn dominates Google AI Mode B2B answers
- Wikipedia is foundational for ChatGPT but absent from AI Mode
Learning center
Learn: SEO, AEO & GEO
The public operating model behind LLMRanks: technical SEO, answer engine optimization, generative engine optimization, AI citations, source attribution, and the evidence trail we keep updating.
- 11 pillar guides across the AI-visibility stack
- Practical topic pages: AEO, GEO, technical SEO, agents
- Grounded in our own studies and evidence log
what we're working on next
Engine-by-engine playbooks, anonymized audit teardowns, and a quarterly citation-share tracker.
If there's a specific question you want answered with real data, tell us — most reports here started as a customer's question.