AEO strategy: audit, comparison content and measurement

What an AEO strategy is, in five steps

Answer engine optimization (AEO) is the work that helps AI answer engines, such as ChatGPT, Perplexity, Gemini, Claude and Google's AI Overviews and AI Mode, name your business and quote your pages when buyers ask about what you sell. A strategy has five steps: audit what the engines can read and what they answer today, fix access and facts, publish answers and fair comparisons for the questions buyers ask, get onto the sources the engines cite, and measure share of voice every month. Google says its AI features need no special files, markup or schema; most of the work is ordinary SEO aimed at the questions buyers put to an assistant.

This guide covers the strategy. For the step-by-step owner version, read how to get your business cited by ChatGPT and Perplexity.

The AEO audit: six areas to check

An answer engine optimization audit checks whether the engines can read you, whether your pages answer the questions, and what the engines say about you now. Score each area as passed, partly passed or failed:

For access and eligibility in detail, the AI search optimization guide lists each company's crawlers and Google's requirements.

The last row needs real answers. For a quick look, the free AI visibility checker puts two buyer questions for your trade and city to ChatGPT, Claude, Gemini and Grok and shows every answer word for word. For a full baseline, AIGROW's AI visibility audit asks 20 to 40 of your buyer questions across four assistants, records every answer and the sources cited, and returns an ordered list of fixes within 5 working days, or a refund.

Set your benchmark with the spread in mind. In the October 2026 AIGROW Index, a page averaged 29 different businesses across its answers, 61% of the businesses on a page were named by only one assistant, and 56% of names came back when the same assistant was asked again. A benchmark from one assistant and one run does not describe the market.

How comparison content affects AEO

Comparison content changes AI answers in two ways. Comparisons written by others, such as directories, rankings and review articles, are where answer engines find a shortlist. Your own comparison pages give them the facts that set you apart.

Google says AI Mode is particularly helpful for queries that need complex comparisons, and that AI Overviews and AI Mode may issue several related searches across subtopics, which it calls query fan-out. A question such as "which payroll software suits a 40-person firm" can lead to searches for prices, alternatives and reviews, and each is a chance to be found.

The AIGROW AI Source Map shows how the two kinds of page behaved in October 2026 answers with web search:

The software rows come from 20 ChatGPT answers each, the agency and lawyer rows from 108 ChatGPT and Claude answers each. For software, ChatGPT read the review articles but cited the vendors' own pages as the source for each name. For services, the comparison directories and rankings were read and cited.

So a software company needs its own pages to answer comparison questions (prices, features, integrations, alternatives) and a place in the review articles, while a service firm needs complete, well-reviewed profiles on the comparison sites of its trade.

When you write your own comparison page, Google's guidance on writing reviews makes a good checklist:

• Compare from the buyer's side, on the few factors that decide the purchase.
• Show evidence of your own testing or experience, with measurements where you have them.
• Say what sets each option apart, including where a competitor is the better choice.
• Give benefits and drawbacks from your own research.
• If you call something the best, say why, with first-hand evidence.
• Link to other useful sources, your own or other sites'.

Google also tells reviewers to put quality and originality ahead of length. A page that only praises you is of little use to a buyer. A page that says "choose this if you need that" gives an engine a sentence it can quote.

Answer-first pages and passages

Answer engines often quote a passage rather than a whole page, so write each section to stand on its own:

• Put the answer in the first sentence under each heading, with the specifics: who, where, how much and how long.
• Keep one question per heading, phrased the way buyers ask it.
• Put prices, areas and conditions in text, not only in images or downloads.
• Date the facts that change, such as prices and opening hours.

You do not need to restate the key takeaways in every section. One direct answer under each heading does that job without repeating yourself.

Embedding models and passage retrieval matter if you build your own site search or chatbot. Public assistants choose their own models, so the part you control is clear, self-contained passages. The GEO guide has an eight-step method for writing a page that earns citations, with a before-and-after example.

AEO for software firms, franchises and online shops

The five steps stay the same; where the weight falls changes:

Language matters too. A mid-sized software company selling in Germany should ask its questions in German: German pages in the AIGROW Index repeated 50% of their names on a rerun, against 58% for US pages, so a test in English does not describe German buyers.

For product feeds and the steps an owner takes, see the ChatGPT and Perplexity citation guide.

Want to know where your business stands? The free checker shows whether ChatGPT, Claude, Gemini and Grok name it.

Who does what

A RACI matrix names, for each task, who does it (responsible), who signs it off (accountable), who is asked (consulted) and who is told (informed). For AEO in a small or mid-sized company the first two are enough:

Whoever does the work, one person should own the facts sheet. When an assistant gives a wrong price or address, check first whether two of your own pages or listings disagree.

How to reverse a drop in AEO share of voice

Share of voice is the number of times you were named divided by the number of times any business was named, across the same questions. The AI visibility metrics guide has the formula and its counting rules. When it falls:

1. Check the drop is real. Same questions, same assistants, same settings, and intervals that no longer overlap.
2. Find where it happened. Which assistant, which questions, with or without web search.
3. Read the answers. Who replaced you, and which pages are cited now that were not before.
4. Check your side. A new firewall rule, a robots.txt change, a moved or deleted page, changed prices.
5. Fix the cause and measure for two more months before you judge the fix.

Worked example (invented numbers). A payroll software company tracks 25 questions on four assistants, three runs each: 300 answers a month. In June the answers named businesses 900 times, the company 126 times: 14% share of voice (95% interval 12% to 16%). In September, 72 of 900: 8% (6% to 10%).

The intervals do not overlap, so the drop is unlikely to be chance. By assistant, ChatGPT named the company in 60 of its 75 answers in June (80%, 70% to 88%) and in 9 of 75 in September (12%, 6% to 21%); the other three together went from 66 to 63. ChatGPT's September answers cite a new comparison article on a software review site that leaves the company out, and the server logs show a firewall rule added in August blocking OAI-SearchBot.

The company allows the crawler again, sends the review site's editor its current prices and features, and publishes its own comparison with the five products in that article. It then measures October and November before judging.

Choosing an AEO agency or provider: questions to ask

Ask these before you hire anyone, and compare the answers:

Walk away from guaranteed mentions or first places, reports without the answers behind them, one run per question, and an llms.txt file or special schema sold as the main fix: Google says neither is needed for its AI features.

You can also split the work. Start with the free AI visibility checker, commission an AI visibility audit for the baseline and fix list, and hand the monthly work to AIGROW's Complete AI Visibility service or an agency you trust. Agencies that sell AEO to their own clients can use AIGROW's agency plan for white-label monthly reports.

Sources

Official pages read on 20 October 2026:

• Google Search Central: AI features and your website
• Google Search Central: Write high quality reviews
• OpenAI: Overview of OpenAI crawlers
• OpenAI Help Center: Searching the web with ChatGPT
• ChatGPT: Power product discovery in ChatGPT
• Perplexity: Perplexity crawlers

AIGROW data:

• AI Source Map, October 2026, with one page per category
• AI Visibility Report, October 2026 edition

The worked example uses invented numbers. Every interval in it is a 95% Wilson interval.