If you've been paying attention to search in 2026, you've probably noticed something: more and more queries on Google, ChatGPT, and Perplexity return a direct answer — a paragraph, a list, a recommendation — before any links. That answer came from somewhere. Some business's website got cited. Others didn't.

That's the gap AEO closes.

But AEO isn't a replacement for SEO. They're two layers of the same strategy. Here's how to think about both — and where to focus your effort.

What is SEO?

SEO — Search Engine Optimisation — is the practice of improving your website so it ranks higher in traditional search engine results: Google's blue links, Bing's results page, and similar.

SEO works by signalling relevance and authority to search engine algorithms. The main signals are:

  • Technical health — can Google crawl and index your pages? Is the site fast? Is there a clear structure?
  • On-page signals — do your title tags, headings, and content match what searchers are looking for?
  • Authority — do other reputable websites link to you? Does your domain have a track record of providing good information?

A site that does SEO well ranks higher in search results, gets more clicks, and drives more organic traffic — without paying for ads.

What is AEO?

AEO — Answer Engine Optimisation — is the practice of structuring your content so that AI-powered answer engines can extract, understand, and cite it in their responses. The target "engines" include ChatGPT, Perplexity, Google AI Overviews, Claude, and anything similar.

Where SEO gets you a link in results, AEO gets you quoted in the answer itself.

AEO works through different signals than traditional SEO:

  • Direct, structured answers — content that answers specific questions clearly, in a format AI can extract (Q&A, lists, short paragraphs with a clear conclusion).
  • Schema markup — structured data that tells AI systems what your content represents, who you are, and why you're authoritative.
  • Entity clarity — making it clear to AI systems what your business is, what it does, who it serves, and where it operates. No ambiguity.
  • Topical authority — being the most thorough, accurate source on a topic across multiple pieces of content.

AEO vs SEO: Side-by-Side Comparison

SEO AEO
Goal Rank in search results Get cited in AI answers
Target platform Google, Bing, search engines ChatGPT, Perplexity, Google AI Overviews
Visibility type Link in results page Quote or citation in direct answer
Key signals Backlinks, technical health, on-page relevance Schema markup, entity clarity, content structure
Content format Long-form, keyword-optimised Direct Q&A, lists, clear entity statements
Measurable via Google Search Console, rank tracking AI citation testing, mention monitoring
Established? 30+ years of practice and data Emerging — best practices still evolving

Where They Overlap

Here's the good news: the majority of AEO best practices are also good for SEO. They're not in conflict — they reinforce each other.

The overlapping signals are:

  • Schema markup — adding FAQPage, Article, Organization, and LocalBusiness schema helps both Google's traditional results and AI engines understand your content. Use the free Schema Markup Generator to create it.
  • Technical health — fast, crawlable, well-structured sites perform better in both traditional SEO and AI citation. A page Google can't read, AI can't cite.
  • Content quality — comprehensive, accurate, well-organised content ranks well in search and is more likely to be extracted by AI. Both reward depth.
  • Authority and trust — backlinks signal authority to Google. Citations and mentions on other sites signal trustworthiness to AI. Building real authority serves both.

The clearest difference is content structure. SEO traditionally rewards long-form content that comprehensively covers a topic. AEO rewards content that answers questions directly — the most extractable format for AI is a clear question followed by a 2–4 sentence direct answer, then elaboration.

A practical approach: write for depth (SEO), but make sure each section leads with a direct answer (AEO).

Where They Diverge

There are a few areas where SEO and AEO tactics genuinely pull in different directions:

Keyword density vs. entity clarity

Traditional SEO involves repeating a keyword naturally throughout a page to signal relevance to that term. AEO cares less about keyword repetition and more about entity clarity — being unambiguous about who you are, what you do, and what geography you serve. AEO content sounds more like a factual entity description; SEO content sounds more like a keyword-rich article.

Link building vs. citation building

SEO link building focuses on getting other websites to link to yours with relevant anchor text. AEO citation building focuses on getting mentioned (with or without a link) in trusted, AI-crawled sources — industry publications, forums, review sites, and knowledge bases. Both matter, but the tactics differ.

Ranking tracking vs. AI monitoring

SEO results are measurable: you can track keyword rankings daily. AEO measurement is less mature — you can test whether AI engines cite you by running specific queries in ChatGPT or Perplexity, but there's no equivalent of a rank tracker for AI mentions yet. This makes AEO harder to measure ROI on, though that tooling is improving rapidly.

Which Should You Focus On?

The honest answer: both. But in what order depends on where you're starting from.

Start with SEO if: Your site has technical issues — slow pages, crawl errors, missing title tags, no schema markup, no Google Search Console set up. Fix the foundation first. A technically broken site can't do AEO effectively anyway, because AI engines can't extract content from pages they can't properly read.
Layer in AEO if: Your technical SEO is in reasonable shape, and you want to appear in the growing share of queries that return AI-generated answers. This is especially valuable if your customers ask conversational questions: "Who's a good web designer in Vienna?" "What's the best SEO approach for a small business?" "How do I get my site to appear in Google AI Overviews?"

The practical sequence for most businesses:

  1. Fix technical SEO (crawlability, page speed, canonical tags, sitemap)
  2. Add schema markup — this alone bridges most of the SEO-to-AEO gap
  3. Restructure key pages to lead with direct answers
  4. Build topical authority through consistent content on your niche
  5. Test and monitor AI citations once the above is in place

If you're not sure where your site currently stands on AEO, take the free AEO Readiness Check — 10 questions that score your site and give you a prioritised action plan.

The Short Version

SEO and AEO are not competitors. SEO is the foundation; AEO is the next floor. Most of what you do for SEO — good technical health, schema markup, authoritative content — directly helps AEO.

The businesses that will win search visibility over the next few years aren't choosing one over the other. They're doing both: building sites Google can rank and AI engines can cite.

For a practical guide to AEO specifically, read How to Get Cited by ChatGPT, Perplexity & Google AI Overviews. For the SEO technical foundation, work through The SEO Checklist I Use on Every Client Website.