What is Answer Engine Optimization (AEO)?
Answer engine optimisation is a name for work aimed at the direct answers search engines now show, such as Google's AI Overviews. It matters because AI Overviews now appear on roughly 12.5% to 16.5% of searches in the countries where they have rolled out, and 97.70% of them sit on informational queries. Google's own guidance is that this is still SEO: its AI features are rooted in its core ranking systems, and you do not need to write in a special way for them.
What changes, and what does not
For Google Search, the fundamentals do not change. Google says there is no requirement to break content into small pieces for AI, and no ideal page length. Three things still hold, because they serve readers first.
- Organise the page with clear headings and sections, so a reader can find what they came for.
- Put what the page answers where a reader would look for it, not after pages of preamble.
- Keep facts checkable, because a claim nobody can verify is weaker for readers and for any system that summarises you.
Where answer engines actually appear
Those figures come from Ahrefs' study of 55.8 million AI Overviews drawn from 590 million keywords, which also found about 16% of US desktop keywords carried one, and that 80.03% of AI Overviews sat on non-branded queries.
That concentration is the strategic point. AEO pays where buyers are researching, not where they are ready to transact, so it belongs at the top of the funnel and should be measured there.
Ranking still helps, but it is not the whole story
Across 863,000 result pages and 4 million AI Overview URLs, 37.9% of cited URLs also appeared in the first ten blocks of the same page. Classic ranking overlaps with a little over a third of what gets cited. Google's advice for the rest is the same as for search generally: make the page original and useful.
Doing it without gaming it
The ethical version of AEO is unglamorous: answer the question honestly, early, and with enough specificity to be checked. The unethical version is stuffing pages with question headings you do not really answer, or asserting confident numbers you cannot source. The second one works until an engine or a reader checks, and then it costs you the credibility the whole approach depends on.
A test you can run today
Take a page you care about and ask the question Google suggests: would a visitor find this content satisfying? Then read its first 60 words and check that a reader would know they are in the right place. If either answer is no, you have found the work.