The practical difference
SEO is the established work of helping search engines discover, understand, and serve useful pages. AEO emphasizes whether a page answers a user’s question directly. GEO emphasizes whether that useful information is suitable for generative search experiences. The labels overlap heavily; they are planning lenses, not three independent systems with three checklists. Google’s current guidance says AEO and GEO are terms used in the industry, while optimization for its generative Search features remains optimization for Search. See Google’s explanation.
Use SEO to maintain crawlability, indexability, information architecture, and page experience. Use AEO when a visitor arrives with a specific decision or question. Use GEO when reviewing whether facts are explicit, current, attributable, and publicly accessible. The shared outcome is a page that satisfies a person.
Choose the lens from the task
Suppose a fictional outdoor retailer publishes a tent buying guide. SEO work ensures category and guide pages have stable links, useful titles, and accessible content. AEO work puts a direct recommendation near “Which tent size should I buy?” and explains the height, gear, weather, and capacity assumptions. GEO work adds the measurement method, product revision date, source links for material specifications, and a clear distinction between staff testing and manufacturer-provided facts.
None of those activities calls for a secret “AI schema” or a new keyword page for every possible question. Google says there is no special markup, required content chunking, or need to rewrite pages specifically for its generative features. It also warns that mass pages made to capture query variants can breach its spam policies. Build the guide the retailer can responsibly stand behind.
Use the AI Search Readiness Checker for technical observations such as accessible responses and directives. Use search intent for AI content before deciding whether to create a new page. Scorecards can identify a repair queue; they cannot confirm how an AI system ranks a page.
Decide what to measure
For SEO, inspect crawl errors, index coverage, impressions, clicks, and conversion paths with the tools available to you. For AEO, collect successful task completion signals: fewer repetitive support questions, useful on-page navigation, and qualitative feedback from readers. For GEO, monitor whether your documentation stays accurate, public, and internally consistent after changes. Do not label a correlation as proof that a particular AI feature caused a business result.
Google recommends people-first content and asks whether readers would leave with enough to achieve their goal. Its self-assessment questions are more durable than a vendor’s term of the month. Let the work be owned by the people who can correct the facts.
Common mistakes
- Budgeting three times for the same technical and editorial foundation.
- Treating snippets or AI answers as a separate publishing destination.
- Repeating a keyword in headings while leaving the actual decision unanswered.
- Measuring only impressions and ignoring incorrect, stale, or inaccessible content.
FAQ
Must we choose one discipline?
No. Use the label that clarifies a task, then complete the shared fundamentals once.
Does GEO replace technical SEO?
No. Clear content still needs a public, crawlable technical delivery path.
Next, use answer-first content writing, topic clusters for AI search, and the Agent Readiness Checker.