Dev.to
8/4/2026

SEO, AEO, GEO: A Technical Breakdown for Developers Building for Search and AI Answers
Short summary
A brand strategist breaks down three layers of search optimization for developers: traditional SEO (crawlable HTML, schema.org, sitemaps), AEO (formatting content for direct extraction into snippets and chat answers), and GEO (targeting LLM-based answer engines like AI Overviews and Perplexity via llms.txt and entity consistency). The author argues teams should fix foundational schema markup before chasing GEO-specific hacks, since clean semantic HTML and structured data serve all three systems simultaneously.
- •SEO, AEO, and GEO share more overlap than most teams assume—clean HTML and structured data serve all three
- •AEO requires self-contained answers and genuine FAQPage JSON-LD schema
- •GEO targets LLM answer engines via llms.txt files and consistent entity facts across the web
Generated with AI, which can make mistakes.
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