GEO vs SEO vs AEO: What's the Difference?
Three acronyms, one goal: being found. Here is how Search Engine Optimization, Answer Engine Optimization and Generative Engine Optimization differ, and how to combine them.
Quick answer
SEO (Search Engine Optimization) earns rankings in Google and Bing results. AEO (Answer Engine Optimization) earns the direct answer in featured snippets, People Also Ask and voice search. GEO (Generative Engine Optimization) earns citations inside AI-generated answers from ChatGPT, Perplexity, Gemini and Google AI Overviews. They build on each other: SEO makes content findable, AEO makes it answerable, GEO makes it citable.
By Mohammed Adnan Parkar · Updated 2026-10-01
SEO vs AEO vs GEO vs LLMO at a Glance
| SEO | AEO | GEO | LLMO | |
|---|---|---|---|---|
| Full name | Search Engine Optimization | Answer Engine Optimization | Generative Engine Optimization | LLM Optimization |
| Goal | Rank pages | Be the direct answer | Be cited in AI answers | Be recommended by language models |
| Surfaces | Google, Bing results | Snippets, PAA, voice | AI Overviews, ChatGPT search, Perplexity | ChatGPT, Gemini, Claude conversations |
| Core tactics | Keywords, links, technical SEO | Question headings, concise answers, FAQ schema | Answer-first passages, stats, citations, structure | Entity consistency, mentions, machine-readable facts |
| Success metric | Rankings, organic clicks | Snippet ownership | Citation share | Recommendation frequency & accuracy |
What Is SEO?
Search Engine Optimization improves a website so it ranks in traditional search results. It covers technical health (crawling, indexing, speed, canonicals), content that matches search intent, and authority from links and mentions.
SEO is still the foundation. Google AI Overviews and ChatGPT search mostly draw on pages that are already indexed and ranking, so weak SEO caps every other discipline.
What Is AEO?
Answer Engine Optimization makes a specific passage the answer to a specific question. It relies on question-based headings, a direct 40 to 60 word answer, lists and tables, and FAQ or HowTo schema.
AEO wins featured snippets, People Also Ask boxes and voice answers, and the same structure makes content easier for AI systems to quote.
What Is GEO?
Generative Engine Optimization targets AI-generated answers. Generative engines retrieve several sources, synthesise an answer and cite a few of them. GEO increases your chance of being one of those citations through answer-first writing, statistics with sources, clear structure, topical depth, and third-party corroboration.
Because AI answers often name brands directly, GEO is also about being mentioned, not only linked.
Is GEO Replacing SEO?
No. GEO extends SEO rather than replacing it. AI search engines still depend on crawlable, indexed, authoritative pages. What changes is the definition of success: alongside rankings and clicks, brands now track how often AI answers cite and recommend them.
The practical approach is one integrated strategy: fix technical SEO, structure content for answers, and build the entity signals and citations that AI systems trust.
How to Combine SEO, AEO and GEO
- 1Get the technical basics right. Indexable, fast, server-rendered pages with correct canonicals and a clean sitemap.
- 2Map questions to pages. One primary question cluster per page to avoid cannibalisation.
- 3Write answer-first. Lead each section with the direct answer, then expand.
- 4Add structure and schema. Tables, lists, FAQ, Organization and Service schema.
- 5Build corroboration. Mentions on trusted sites, directories, reviews and lists in your market.
- 6Measure all three. Rankings and clicks, snippet ownership, and AI citation share.