The 4 stages of integrated GEO agency services: what the agency and the client each handle

Integrated GEO agency services that take on everything through content production and publishing do exist, and they run in four stages: diagnosis, strategy design, execution, and measurement. The client handles only final approval and compliance review, and the agency carries out the rest of the execution. In Korea, too, GEO-specialist agencies including PION operate on this model.

GEO is the work of optimizing so that AI search engines such as ChatGPT, Perplexity, Gemini, and Claude cite and recommend a brand and its content when they generate answers. AI search traffic has become one of the channels that bring in visitors, to the point that there is an analysis that ChatGPT disrupted half of the AI search market share within a year of its launch.

What is integrated GEO agency service?

Integrated GEO agency service runs AI visibility audits, strategy design, content writing, publishing, and share measurement under a single contract. Ordinary consulting stops at presenting a strategy, while an integrated agency takes responsibility through execution and measurement.

What gets optimized differs from conventional SEO agency work. SEO manages the ranking signals of Google's search results pages, while GEO shapes which content ChatGPT, Perplexity, Gemini, and Claude refer to when they generate answers. There is also an analysis that, for e-commerce and D2C brands, expanding SEO alone is not enough and a separate AEO and GEO strategy tailored to how AI generates answers is needed.

In integrated agency work, the client provides conditions and approvals, and the agency handles the rest of the execution.

The 4-stage operating process

Integrated GEO agency work proceeds in the order of diagnosis, strategy design, execution, and measurement, and it is a closed loop that feeds measurement results back into strategy design. Each stage takes in data from the previous stage.

Changes in share can be measured meaningfully only when this loop runs with at least three months as one cycle.

What does an AI visibility audit measure?

The diagnosis stage measures in numbers how AI engines currently perceive the brand. You need to set the starting point with data to measure changes in performance afterward. The diagnosis proceeds in the following order.

1. Query set design: We design queries that reflect the customer journey, including brand awareness, category exploration, purchase intent, and comparison shopping.
2. Collecting answers by engine: We run the same queries on ChatGPT, Gemini, Google AI Overviews, and AI Mode and collect the answer text. Each engine has a different citation method and source-referencing logic, so we tally each engine separately.
3. Brand citation analysis: We check whether the company's brand name, product names, or domain are mentioned or linked in the collected answers.
4. Competitor share comparison: We also tally the rate at which competing brands are cited for the same queries.
5. Calculating key metrics: We compile visibility share, citation frequency by engine, and gaps by query type.

Visibility share is the rate at which the company's brand is cited within the query set. Before the diagnosis, you cannot tell how far the problem extends. Once you see the diagnostic results, you can understand why there is the view that content not cited in AI search effectively does not exist.

Content design and publishing in the execution stage

The main task in the execution stage is designing content in a format that AI can easily cite when it synthesizes answers. How clearly the information is organized and how clear its signals are affect the citation rate more directly than sentence length or keyword frequency. The main principles of AEO and GEO content design are as follows.

• Answer first: Put the answer in the first sentence of each section. AI extracts candidate answer passages rather than whole paragraphs, so the first sentence must make sense on its own.
• Question-style headings: Write H2 and H3 headings as questions similar to real user search queries.
• FAQPage schema: Add schema.org FAQPage structured data to the page so AI crawlers recognize the Q&A pairs accurately.
• Explicit entities: State key entities such as brand name, product category, ingredients, and region repeatedly in the body text.
• Authority signals: Include citations of and links to trustworthy external sources to strengthen the content's E-E-A-T signals.

What the agency does at the publishing stage depends on the client's channels, as shown below.

ChatGPT Ads appear in a separate placement apart from the answer body and do not put a brand inside the body of an AI answer. So advertising and GEO content strategy run in parallel, each with its own role.

Share measurement and iteration

In the measurement stage, a monthly report checks whether the GEO loop is actually working and determines what to do in the next cycle. The monthly report includes the following items.

• Changes in the query-set citation rate for each engine (ChatGPT, Gemini, Google AI Overviews, AI Mode)
• Month-over-month change in visibility share (percentage points)
• AI referrer inflow (for some engines, such as Perplexity, referrer traffic can be tallied)
• A list of newly cited queries and dropped queries
• Recommendations for priority target queries for the next month

Measurement results are reflected in the next month's strategy as follows.

Whether a strategy is working is judged by the trend over three months or more rather than by the absolute share. Rather than short-term swings in metrics, whether query coverage keeps widening is the key indicator of GEO performance.

At this stage, the client reviews the monthly report, shares any changes to brand messaging, and gives final approval to the next month's content plan. For organizations that must go through legal and medical compliance review, such as hospital, clinic, and medical device brands, a separate internal client review step before publishing is built into the loop. You can find how to build review into the loop, and what content material to use when testimonials cannot be written, in GEO services for hospitals and clinics: Working within medical advertising rules.

The deliverables of each of the four stages and what the advertiser handles are summarized in Generative engine optimization: What can you outsource?.