This is the same work whether you call it GEO (Generative Engine Optimization), AEO (Answer Engine Optimization) or “AI SEO.” The labels differ; the goal doesn’t. You want an AI assistant to name your business when someone asks a question you can answer. The audit below takes about 30 minutes, needs no paid tools, and gives you a baseline you can re-run every month.

The audit in brief
  • Test real customer questions, not your brand name. Run each prompt two or three times, because answers vary.
  • Log one of three outcomes per run: named and linked, named only, or absent. Note which sources the AI cited instead.
  • Check robots.txt and your CDN. Sites that block OAI-SearchBot are not shown in ChatGPT search answers.[3]
  • No special files needed for Google. AI Overviews and AI Mode have no extra requirements beyond SEO fundamentals.[4]
  • Fix the page, not the prompt: one clear page per question, with the answer in the first paragraph.

Why this is worth 30 minutes

ChatGPT reached 900 million weekly active users in February 2026, according to OpenAI.[1] Google’s AI summaries are changing click behaviour too. In Pew Research Center’s study of real browsing data from 900 U.S. adults, users clicked a traditional search result in 8% of visits when an AI summary appeared, versus 15% when none did.[2] They clicked a link inside the summary itself in just 1% of visits.[2]

The implication is direct. A growing share of questions get answered before anyone reaches a website. If your business is not in the answer, the customer may never see your page at all.

8% vs 15%
Share of Google visits that ended in a click on a traditional result, with and without an AI summary on the page. Source: Pew Research Center, March 2025 browsing data.

Step 1: Write ten questions your customers actually ask

Don’t start with your brand name. Asking “What is [Business]?” only tests whether the AI knows you exist. The value is in questions where the customer doesn’t know you yet. Write ten prompts across these five types, using a local dental clinic as the example:

Prompt typeExampleWhat it tests
Best-of“Who’s the best family dentist in Tacoma?”Whether you make the shortlist
Problem“I cracked a tooth on Saturday. Where can I go in Tacoma?”Whether a specific service page gets matched
Comparison“Invisalign or braces for an adult, which is better?”Whether your content is cited as an explainer
Cost“How much does a dental implant cost in Washington?”Whether you publish the facts AI needs
Brand“Is [clinic name] any good?”What the AI believes about you, and where it learned it

Use the phrasing a customer would type or say: full sentences, the city, the urgency. That is how people talk to AI assistants, and it is what the assistant tries to match.

Step 2: Run each prompt across four engines

Run every prompt in ChatGPT, Perplexity, Gemini and Google’s AI Mode. Use a private window or a logged-out session where you can, so your own history doesn’t shape the answer. Run each prompt two or three times. Generated answers vary between runs, and a business that appears once in three tries is in a different position from one that appears every time.

For each run, record one of three outcomes:

A spreadsheet with prompts as rows and engines as columns is enough. This log is your baseline. Without it, you can’t tell whether anything you change later actually worked.

Step 3: Read the citations, not just the answer

The most useful part of an AI answer is its source list. Perplexity, ChatGPT search and AI Mode show which pages they drew on. Those citations are a map of where the engine looks for trustworthy information in your category.

Step 4: Check that AI crawlers can reach your site

An AI engine can’t cite a page it can’t fetch. Open yourdomain.com/robots.txt and check how it treats these crawlers:

The CDN point catches many small businesses. Some hosting, CDN and security services offer settings that block AI crawlers at the network level, so robots.txt can say “allow” while the crawler is still turned away. If your site sits behind one, check its bot settings as well.

Step 5: Fix the page, not the prompt

Once you know where you are missing, most fixes happen on your own site. Google is explicit that “there are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary.”[4] The work is SEO fundamentals, done precisely.

Give each question a page that answers it

If “emergency dentist in Tacoma” is a question you want to win, you need a page about emergency dental care, not a line on a services list. AI search matches passages to questions, so a page about one service gives it one clear passage to use. We cover this in depth in why every service needs its own page.

Put the answer in the first paragraph

Kevin Indig’s analysis, reported by Search Engine Land, found 44.2% of ChatGPT citations came from the first 30% of a page.[6] Open each page with a direct answer: what you do, for whom, where, and how it is priced. Save the story for further down.

Write plainly and cut the sales language

Semrush’s January 2026 study of AI-cited content found clarity and summarization had the strongest positive correlation with citation (+32.8%), while promotional tone correlated negatively (−26.2%).[7] Those are correlations, not guarantees. They still point one way: facts beat adjectives.

Keep your facts identical everywhere

Your name, phone number, hours, service area and prices should match across your website, Google Business Profile and directories. Google’s guidance for AI features specifically mentions keeping Business Profile information up to date.[4] When sources disagree, an AI has less reason to state any of them with confidence.

Earn mentions on the sites AI already cites

Step 3 showed you which sources the engines trust in your category. Getting listed, reviewed or mentioned on those sources is slower than editing your own site. It is also the part competitors find hardest to copy.

What you don’t need
Google says you don’t need new machine-readable files, AI text files or special schema.org markup to appear in its AI features.[4] Structured data still helps machines read your facts, but Google requires it to match the visible text on the page.[4] Be wary of anyone selling a special file as the fix.

Re-run the audit every month

AI answers shift as engines update and competitors publish. Re-run the same prompts monthly, in the same engines, and compare against your baseline. Track the share of runs where you are named and linked. One good answer is an anecdote. A rising share across thirty runs is a trend.

Want this done for you? We run the audit across ChatGPT, Perplexity, Gemini and AI Mode, log every answer, and show you which pages to fix first.

Get your free AI visibility score →

Frequently asked questions

What is the difference between GEO and AEO?
Very little in practice. GEO (Generative Engine Optimization) and AEO (Answer Engine Optimization) both mean making your content easy for AI assistants to find, trust and quote. GEO is the more common term in research; AEO is often used for answer boxes and voice assistants. The work is the same.
How do I know if ChatGPT recommends my business?
Ask it the questions your customers ask, in a private or logged-out session, and run each prompt two or three times. Record whether you are named and linked, named only, or absent, and note which sources it cites instead of you.
Why does ChatGPT give a different answer every time?
AI answers are generated fresh for each request, so wording and recommendations can change between runs. That is why a single test is unreliable. Run each prompt several times and track how often you appear.
Do I need an llms.txt file to show up in AI search?
Not for Google. Google states that no new machine-readable files, AI text files or special markup are needed to appear in AI Overviews or AI Mode. Crawler access, clear pages and accurate business information matter more.
How often should I check my AI visibility?
Monthly suits most small businesses. Use the same prompts and the same engines each time so the results are comparable from one month to the next.
Why every service needs its own page → What is Generative Engine Optimization? AI SEO explained → How does AI decide which products to recommend? →

Sources

  1. TechCrunch (reporting OpenAI's announcement). "ChatGPT reaches 900M weekly active users." Feb 27, 2026. https://techcrunch.com/2026/02/27/chatgpt-reaches-900m-weekly-active-users
  2. Pew Research Center. "Google users are less likely to click on links when an AI summary appears in the results." Jul 22, 2025. https://www.pewresearch.org/short-reads/2025/07/22/google-users-are-less-likely-to-click-on-links-when-an-ai-summary-appears-in-the-results/
  3. OpenAI. "Overview of OpenAI Crawlers (OAI-SearchBot, GPTBot)." 2026. https://developers.openai.com/api/docs/bots
  4. Google Search Central. "AI features and your website." 2026. https://developers.google.com/search/docs/appearance/ai-features
  5. Google Search Central. "Google's common crawlers: Google-Extended." 2026. https://developers.google.com/search/docs/crawling-indexing/google-common-crawlers
  6. Search Engine Land. "44% of ChatGPT citations come from the first third of content (Kevin Indig study)." Feb 18, 2026. https://searchengineland.com/chatgpt-citations-content-study-469483
  7. Semrush. "How We Built a Content Optimization Tool for AI Search (clarity +32.8%, promotional tone -26.2%)." Jan 14, 2026. https://semrush.com/blog/content-optimization-ai-search-study