AEO vs SEO vs GEO: What Is the Difference?
SEO, AEO and GEO compared: what each optimises for, how they overlap, and a practical plan to cover all three without tripling your workload.
Northwind Studio Engineering
Editorial Pod
The One-Line Definitions
- SEO (Search Engine Optimization): earning visibility in traditional search results such as Google and Bing.
- AEO (Answer Engine Optimization): structuring content so engines can lift a direct answer, for example in featured snippets, voice assistants and AI overviews.
- GEO (Generative Engine Optimization): getting your brand cited and recommended inside AI-generated answers from tools like ChatGPT, Gemini, Claude and Perplexity.
Side-by-Side Comparison
Goal
SEO aims for a high ranking and a click. AEO aims to be the quoted answer. GEO aims to be one of the sources an AI trusts and mentions by name.
Main signals
SEO leans on relevance, links, technical health and page experience. AEO leans on clear question-and-answer structure and concise definitions. GEO leans on all of that plus entity consistency and independent mentions across the web.
How success is measured
SEO is measured in rankings, impressions and organic clicks. AEO is measured in snippet and answer appearances. GEO is measured in citations, AI referral traffic and brand mentions inside answers.
Where They Overlap
The good news: around 80 percent of the work is shared. All three reward:
- Fast, crawlable pages with content in the initial HTML.
- Clear headings that mirror real questions.
- Accurate structured data for your organisation, services and articles.
- Original, specific, up-to-date content.
- A trustworthy brand footprint across the web.
Where They Differ
SEO-specific work
Keyword research, internal linking, site architecture, Core Web Vitals and link earning. See our technical SEO checklist for Next.js for the engineering side.
AEO-specific work
Opening each section with a 40 to 60 word direct answer, adding FAQ sections, using lists and tables for steps and comparisons, and defining terms explicitly.
GEO-specific work
Allowing AI search crawlers, publishing an llms.txt summary, keeping your company description identical across profiles, and earning mentions in sources AI systems already trust. Our explainer on Generative Engine Optimization goes deeper.
A Combined Plan
- Foundation (weeks 1 to 2): technical SEO audit, robots.txt review, structured data.
- Content (weeks 3 to 8): rewrite key pages answer-first, add FAQs, publish guides for your buyers' top questions.
- Authority (ongoing): consistent profiles, directory listings, expert commentary and partnerships.
- Measurement (monthly): rankings, AI referrals and a fixed set of test prompts.
Our AEO and GEO service and technical SEO service deliver this plan as one programme.
Frequently Asked Questions
Which should I prioritise first: SEO, AEO or GEO?
Start with SEO fundamentals. Without crawlable, well-structured pages, neither answer engines nor generative engines can use your content.
Is AEO the same as optimising for featured snippets?
Featured snippets were the original target of AEO. Today it also covers voice assistants and AI-generated overviews.
Does schema markup help with GEO?
Structured data helps machines identify who you are and what you offer. It is not a guarantee of citation, but it removes ambiguity.
Can a small business compete in AI search?
Yes. AI answers often cite specific, well-structured pages from smaller sites when they answer a niche question better than large brands.