Search used to mean one thing: a list of blue links. Now it has three front doors: the traditional results page, the answer box that appears above it, and AI chat tools that write their own answer using several sources. SEO, AEO and GEO each aim at one of these doors, but a single well-structured page can work for all three.
SEO aims at the traditional results page
Search engine optimization, or SEO, is the practice of helping a page rank higher in the list of links you see after a search. It relies on things like relevant keywords, clear headings, fast page loading, and other sites linking back to your page.
SEO has been around the longest, and it still matters. Plenty of people still scroll through a list of links and click the one that looks most useful.
AEO aims at the answer box
Answer engine optimization, or AEO, targets the box that often appears above the list of links, sometimes called a featured snippet. This box tries to answer the question directly, without making the person click through to a page.
To win this spot, a page needs to state the answer plainly, usually in the first sentence or two of a section, before adding more detail. Search engines pull that short answer into the box.
GEO aims at AI chat tools that write their own reply
Generative engine optimization, or GEO, is the newest of the three. It focuses on tools like ChatGPT, Gemini, and Perplexity, which read many pages and write a fresh answer in their own words, sometimes naming a source and sometimes not.
These tools favor pages that state facts clearly, use plain language, and organize information under headings that match real questions. A page written for people tends to do better here.
The three overlap more than they compete
You don't need three separate pages, or three separate strategies. A page that answers a real question clearly, uses a sentence-case heading for each subtopic, and backs up claims with plain facts, tends to work for all three doors at once.
The traditional results page rewards relevance and structure. The answer box rewards a short, direct answer near the top of a section. AI chat tools reward clear, well-organized facts they can pull from confidently. These goals line up more often than they conflict.
What a page needs to work for all three
A page designed to cover all three doors usually includes:
- A plain-language answer near the top of the page and near the top of each section
- Headings that match the way people ask questions
- Short paragraphs that state one idea at a time
- Facts and examples that are easy to quote out of context
- Consistent details about your business across your website and other listings
The short answer
SEO, AEO and GEO are three ways people now find information online: the traditional results page, the answer box above it, and AI chat tools that write their own reply. Each rewards a slightly different approach, but a page that states clear answers early, uses plain language, and organizes information under useful headings tends to perform well across all three.