The Question Everyone is Asking
As AI search explodes in popularity, one question dominates every marketing conversation: do I need AEO or SEO — or both?
The answer is both. But understanding why requires understanding how fundamentally different these two disciplines are.
What SEO Does
Search Engine Optimization has one goal: rank higher on Google (and Bing) for specific keyword queries. A user types "best running shoes 2026" and Google returns 10 blue links ranked by a complex algorithm weighing hundreds of factors.
SEO's job is to be one of those 10 links — ideally number one.
The signals Google uses: backlinks from authoritative sites, keyword relevance, page load speed, mobile optimization, user engagement metrics, domain age and authority, and hundreds of other technical and content factors.
SEO has been refined over 25 years. The playbook is well-established, the tools are mature, and the competition is fierce.
What AEO Does
Answer Engine Optimization has a different goal entirely: be cited by AI engines when users ask conversational questions.
When someone asks Perplexity "which accounting software is best for a small creative agency?", Perplexity doesn't return 10 links. It returns one synthesized answer — with citations. AEO's job is to be in that answer and in those citations.
The signals AI engines use are fundamentally different from Google's algorithm:
Entity recognition — does the AI clearly understand what your business is, what it does, who it serves, and where it operates? If your business information is inconsistent or sparse across the web, the AI cannot confidently cite you.
Conversational content structure — AI models are trained on question-and-answer data. Content that directly answers specific questions in clear, natural language gets extracted and cited at far higher rates than keyword-dense SEO copy.
Topical authority depth — an AI engine asked about cybersecurity will cite the source that has comprehensively covered cybersecurity topics, not just ranked for "cybersecurity tips." Depth of coverage matters more than individual keyword rankings.
Third-party corroboration — AI models weigh consistency of information across multiple trusted sources. If 15 credible websites describe your business in similar terms, the AI gains confidence in citing you.
Where They Overlap
AEO and SEO share a foundation of quality content, clear site structure, and genuine expertise. A well-executed SEO strategy provides real benefits to AEO — particularly:
- High-quality backlinks signal authority to both Google and AI engines
- Fast, well-structured websites are preferred by both
- Clear, factual writing benefits both
- Regular content updates matter for both
Think of SEO as building the road, and AEO as making sure the AI's GPS knows your business exists on that road.
Where They Diverge
The critical differences that require separate strategic attention:
Keyword focus vs. question focus. SEO content is built around keywords people type. AEO content is built around questions people ask conversationally. "Best accounting software" is an SEO keyword. "What accounting software should a small agency use for client billing and project tracking?" is an AEO query. The content that answers one often performs poorly for the other.
Ranking vs. citation. SEO success is measured in rankings and organic traffic. AEO success is measured in citation frequency — how often AI engines mention your business in relevant answers. These metrics are tracked completely differently.
Technical implementation. SEO technical work focuses on crawlability, indexation, Core Web Vitals, and site architecture. AEO technical work focuses on schema markup, entity disambiguation, and structured data that AI systems can parse cleanly.
Content format. Long-form SEO content often buries the direct answer. AEO content leads with the direct answer, then elaborates. The structure is inverted.
The Right Strategy
For most businesses, the optimal approach is:
- Maintain your SEO foundation — don't abandon what's working on Google
- Audit your AEO visibility — understand where you stand in AI search right now
- Restructure key pages for both — FAQ sections, service pages, and about pages can be optimized for both signals simultaneously
- Build topical authority content — deep, useful content that serves both SEO and AEO goals
- Implement schema markup — this directly benefits both disciplines
The businesses that will dominate the next decade of search are the ones that treat SEO and AEO as a unified content strategy rather than competing priorities.
The question is not which one to choose. The question is how quickly you can build both.