What is LLM SEO? A Complete Definition
LLM SEO (Large Language Model SEO) is the discipline of optimizing your website, brand presence, and content so that large language models — ChatGPT, Perplexity, Gemini, Claude, Google AI Overviews — cite, recommend, and reference your brand in their answers.
It is also called LLMO (Large Language Model Optimization), GEO (Generative Engine Optimization), or AEO (Answer Engine Optimization), depending on context.
Why Traditional SEO Is Not Enough
Google's traditional algorithm rewards backlinks, page authority, and keyword relevance. LLMs use a fundamentally different signal set: entity recognition (is your brand in Wikidata?), direct-answer extractability (can the RAG pipeline pull a clean answer from your page?), and crawler accessibility (is GPTBot allowed?). A website with DA 80 but no Wikidata entry and no /llms.txt will consistently lose to a DA 40 site that has both.
The GEO Framework: 6 Core Pillars
- Entity Building: Create and verify your brand on Wikidata, Crunchbase, LinkedIn, and G2. Add Organization JSON-LD with
sameAslinks on every page. - Crawler Accessibility: Explicitly allow GPTBot, PerplexityBot, ClaudeBot, Google-Extended, and Amazonbot in
robots.txt. - LLMs.txt Manifest: Publish a machine-readable
/llms.txtfile summarizing your brand, product, and key page URLs. - Direct-Answer Content: Write 40-60 word direct-answer paragraphs immediately beneath every H2. No marketing fluff — factual, citable sentences only.
- Structured Data: Deploy FAQPage, HowTo, SoftwareApplication, and BreadcrumbList JSON-LD schema across your content hierarchy.
- Share of Model Tracking: Measure your brand's citation rate across all AI engines weekly and track Share of Voice vs. competitors.
How to Track Google AI Overviews
Google AI Overviews (formerly Search Generative Experience) appear above traditional results for 20%+ of commercial queries. If your brand is not in the AI Overview source carousel, your CTR drops significantly even if you rank #1 in blue links.
Optymia's free Google AI Overview Tracker lets you check any keyword, verifies whether Google triggers an AI Overview, and reports which URLs are cited in the source carousel — with zero sign-up required for the first 3 scans.
Start Measuring Your LLM SEO Performance
Use Optymia's free AI Visibility Score tool to get an instant read on your brand's current position across ChatGPT, Perplexity, Google AI Overviews, and Claude. The report identifies your top 3 indexability gaps and provides a prioritized fix checklist.