AEO vs GEO vs SEO: which one matters for your site?

Three disciplines. One goal: get found. Here's how they differ, where they overlap, and why you need all three in 2025.

AEO vs GEO vs SEO at a glance

SEO

Target channel
Search result page rankings (Google, Bing)
Primary signals
Keywords, backlinks, PageRank, Core Web Vitals
Output
Position 1–10 on a SERP
Success metric
Organic click-through rate, impressions

GEO

Target channel
Generative AI responses (ChatGPT, Claude, Gemini)
Primary signals
llms.txt, content quality, domain authority, citation network
Output
Brand mention or direct citation in AI answer
Success metric
AI mention rate, share of voice in AI

AEO

Target channel
Direct answer extraction (featured snippets, AI Overviews)
Primary signals
FAQ schema, answer-structured paragraphs, authority signals
Output
Verbatim citation in AI or featured snippet
Success metric
Featured snippet ownership, AI citation frequency

What SEO, GEO, and AEO have in common

All three reward high-quality, authoritative content. Strong domain authority, a healthy backlink profile, and fast page load times benefit SEO, GEO, and AEO equally. The divergence is in the layer above: SEO stops at ranking; GEO adds AI-readable formats (llms.txt); AEO adds answer structure (schema, direct-answer paragraphs). Invest in the foundation first, then layer GEO and AEO on top.

AEO vs GEO vs SEO questions

GEO (Generative Engine Optimization) is the broad practice of optimizing for any generative AI system. AEO (Answer Engine Optimization) is a subset focused specifically on direct-answer retrieval — the moment an AI picks one source as the definitive answer. All AEO is GEO, but not all GEO is AEO.

Both. SEO remains the highest-volume traffic channel. But AI search is growing at 40%+ year-over-year, and zero-click AI answers are cannibalizing top-of-funnel organic traffic. Sites that invest only in SEO are losing ground fast. The optimal strategy invests in a shared foundation (content quality, authority) and adds GEO/AEO as an incremental layer.

No. GEO optimizations like llms.txt, schema markup, and content structure are additive. They give AI crawlers better access without affecting how Googlebot indexes your site. The only risk is if you make content changes specifically for AI readability that reduce keyword density — but that risk is minimal if you prioritize clarity.

SEO: Ahrefs, Semrush, or Moz for backlinks and rank tracking; Google Search Console for indexing data. GEO: geodeck for llms.txt, AI visibility tracking, and schema auditing. AEO: geodeck's schema validator and FAQ page auditor. A unified platform like geodeck handles the GEO and AEO layers automatically.

We focus on the GEO and AEO layers. We automate llms.txt generation and hosting, validate and fix schema markup, track AI mention frequency across ChatGPT and Perplexity, and submit new content via IndexNow for fast SEO indexing. We also integrate with Google Search Console for the SEO data layer.

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