How is GEO different from traditional SEO?
GEO and SEO share most of their upstream work - content, structured data, PR placements, technical hygiene. They diverge sharply on measurement and deliverables. SEO tracks ranked positions on Google. GEO tracks brand citations inside AI-generated answers from ChatGPT, Perplexity, Gemini, Claude, and DeepSeek. For an agency, this means new tooling, new reporting, and a different conversation with the client about what "winning" looks like.
The measurement layer is completely different
In SEO the unit of success is a keyword ranking on a SERP. You either rank or you do not, and Google Search Console tells you exactly where. In GEO there is no SERP. A user asks ChatGPT "best email marketing platform for ecommerce agencies" and the engine returns a one-paragraph answer naming two or three vendors. The unit of success is whether your client's brand is in that paragraph.
This changes everything downstream. Agencies cannot use Ahrefs or Semrush to monitor GEO. The tracking has to query the engines directly, on a recurring schedule, with the same prompts a buyer would use. That is a new data pipeline, and it is the reason dedicated GEO platforms exist.
What carries over from SEO
Most of the foundational work transfers cleanly:
- On-page content that answers buyer questions clearly
- Structured data (Organization, Product, FAQ schemas) so engines can identify the brand entity
- External citations from trusted sources (G2, Capterra, industry press, analyst write-ups)
- Site speed, crawlability, and clean URL structure
- Internal linking that signals topical depth
Agencies that already deliver good SEO have a head start. The first GEO audit on an SEO-mature client often surfaces the same recommendations the SEO team already made, plus a citation gap analysis that is genuinely new.
What does not carry over
- Keyword research. GEO is prompt-based, not keyword-based. "Best CRM for solo agencies" is a prompt; "best crm" is a keyword. Prompts are longer, more conversational, and more job-to-be-done flavoured.
- Backlink building. Raw backlinks matter less than being mentioned by name in the right kind of source. A single Forbes Advisor mention by name can outweigh fifty low-quality backlinks for GEO.
- SERP-feature optimisation. Featured snippets, People Also Ask, and image carousels are Google constructs. They do not exist inside an AI answer.
- Click-through rate optimisation. There is no click in many AI answers. The buyer may never visit the site at all - they get the answer, decide on a shortlist, and search those specific brands by name.
A side-by-side example
An ecommerce-focused agency runs SEO for a Shopify-app client. The SEO program ranks the client #2 on Google for "best inventory app for Shopify". The same agency runs a GEO scan with the same query phrased as a prompt: What is the best inventory management app for a Shopify store? ChatGPT names three apps. The client is not one of them. Perplexity names two. The client is not one of them either. Same upstream content, same brand authority, completely different outcomes on the two surfaces. The SEO program is working. The GEO program does not exist yet.
What this means for agency delivery
Three concrete changes:
- Reporting cadence and format change. Monthly SEO reports show keyword rank deltas. Monthly GEO reports show prompt-level citation presence across five engines, plus citation-source attribution (what other pages the engine cited alongside or instead of the client).
- The deliverable mix shifts. Less keyword-driven blog content, more entity-anchor pages, more structured-data work, more outreach to the specific publications that engines treat as citable sources for the client's category.
- The client conversation changes. "We moved from #5 to #3 on this keyword" becomes "You went from cited by 0 of 5 engines to cited by 3 of 5 on these 12 buyer-intent prompts". Both are real. Both are measurable. The second one is what is moving budgets right now.
Agencies that frame GEO as "the next layer of SEO" usually undersell it and underdeliver. Agencies that frame it as its own discipline with its own tooling and its own KPIs charge more and keep clients longer.