FactRelay Docs
GEO vs AEO vs SEO
How the three disciplines relate, what each optimizes for, and why they share one technical foundation rather than replacing each other.
The three acronyms describe overlapping work aimed at different result formats:
| SEO | AEO | GEO | |
|---|---|---|---|
| Optimizes for | Ranked links on results pages | Direct answers (featured snippets, voice, answer boxes) | Synthesized answers from generative assistants |
| Unit of success | Position and clicks | Being the extracted answer | Being represented accurately and cited in assembled answers |
| Failure mode | Not ranking | Wrong or missing extraction | Being misdescribed, generalized, or silently excluded |
| Measurement | Rank tracking, analytics | Snippet monitoring | Repeated sampling per surface with n/N (standard) |
What they share
One technical foundation carries all three: crawlable pages, coherent site structure, accurate structured data, clear entity signals, and content that answers real questions. Google’s own guidance for AI features says exactly this — the fundamentals of search apply, and no AI-specific markup shortcut exists.
This is why “GEO agency vs SEO agency” is mostly a false choice. Technical SEO work is a prerequisite for GEO outcomes: an assistant cannot cite a page it cannot crawl, and it cannot extract a fact your site never states plainly.
What GEO adds that SEO never needed
- Representation accuracy. SEO asks “do we rank?” GEO must also ask “when the assistant paraphrases us, is the paraphrase true?” — which requires an approved-facts baseline to compare against.
- Source tracing. Assistants cite; those citations can be current, stale, or a single opinion generalized. Auditing the citation layer is new work (evidence standard).
- Non-determinism. The same question yields different answers across runs. Measurement must be statistical (repeated sampling, controls), not screenshot-based.
- Correction loops. Fixing a wrong answer means publishing verifiable facts and retesting like-for-like — a workflow, not a metadata tweak (correction and retesting).
Practical guidance
Do not budget for “GEO instead of SEO.” Budget for one operating loop where technical readiness, factual content, source strategy, and per-surface measurement reinforce each other. That is how FactRelay services are structured, and why the 14-day baseline audits all of these layers at once.