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AEO Agency: How to Choose One, and How to Vet It

Updated September 2026 · Written and maintained by the Progression Agency strategy team

Choosing an AEO agency comes down to four questions that separate an agency doing answer engine optimization from one that has only learned the vocabulary — and what a real engagement looks like in its first fortnight.

On this page · 15 sections
  1. What an AEO agency actually does
  2. How an AEO agency differs from an SEO agency
  3. The two questions that separate practitioners from vocabulary
  4. What should be in an AEO proposal
  5. Specialist AEO agency, full-service agency, or your current supplier?
  6. Is this market authority-locked, or can a small agency actually win it?
  7. What AEO agencies get wrong
  8. What it costs and how it should be structured
  9. Should you hire anyone yet?
  10. How to run a shortlist in one week
  11. Everything else we have written on search, AI and getting found
  12. The four questions, side by side, with what good and bad answers look like
  13. What an AEO agency should be reporting every month
  14. Agency types compared on the things that actually differ
  15. What we will tell you not to buy

The short answerAn AEO agency works to get your pages quoted as named sources inside AI answers. Vet one with two questions: will you fetch our commercial templates with JavaScript disabled before quoting, and which crawlers will you test for by name. Specific answers mean a practitioner; vague ones mean vocabulary. Ask your existing SEO agency first — it is usually the cheapest right answer. And no supplier can guarantee a citation, because nobody controls model output.

Domain authority and ranking figures measured September 2026. This family is not currently authority-locked, which is unusual and unlikely to persist.

The vetting scorecard: what a real AEO agency will agree toThe vetting scorecard: what a real AEO agency will agree to
The three ‘no’ rows are disqualifying. The two ‘part’ rows are not wrong, just usually a sign the emphasis is off.

What an AEO agency actually does

An answer engine optimization agency works to have your pages quoted as named sources inside AI-generated answers. In practice that is five workstreams, and only one of them looks like anything an SEO agency would recognise as its day job.

The five are: proving AI crawlers can reach your site, making your pages return their content without JavaScript, restructuring so each section answers its own heading, making every source that describes your business agree with every other, and measuring against a fixed set of prompts rather than a rank tracker.

Notice what is not on that list. No keyword research, because there is no ranked list to target. No publishing cadence, because volume is not the lever. No link building as a primary activity, although third-party corroboration matters enormously for a different reason.

Crawler access

A second set of bots — GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot, Google-Extended — must be allowed, and the agency should prove from your server logs that they actually arrived rather than that robots.txt theoretically permits them.

Rendering

Many AI crawlers do not execute JavaScript. A page that assembles its content in the browser returns almost nothing to them. This is the most common and most expensive failure, and it is invisible to anyone checking the site in a browser.

Passage structure

Retrieval selects a passage, not a page. If the answer to a heading is assembled across three paragraphs and a bullet list, there is nothing clean to lift.

Entity consistency

What assistants say about your business is assembled from every source that describes it. If those sources disagree, the answer is wrong, and being wrong is worse than being absent.

Corroboration

Third parties repeating what you say about yourself is what makes a claim safe to quote. This is why digital PR matters here — not for the link, for the agreement.

Measurement

A fixed prompt set, re-run with identical wording, recorded over time. Anything else is either a rank tracker wearing a costume or an anecdote.

If those sources disagree, the answer is wrong, and being wrong is worse than being absent.

How an AEO agency differs from an SEO agency

The foundations are shared and most of a competent technical SEO programme transfers untouched. What differs is emphasis and evidence: more hours on technical and measurement, fewer on content volume, and a completely different definition of proof.

The honest version is that a good technical SEO agency is already doing perhaps seventy per cent of this. The missing thirty per cent is specific, testable, and mostly cheap.

Where an SEO agency and an AEO agency spend their hoursWhere an SEO agency and an AEO agency spend their hours
An agency pitching AEO whose hours look like the first bar is selling SEO with new vocabulary.

What transfers

Indexation, crawl health, site architecture, page speed, internal linking and genuine topical authority. Answer engines retrieve from web indexes, so this is the foundation rather than a legacy concern.

What is genuinely new

Two things only: a second set of crawlers to allow and verify, and a rendering standard considerably stricter than Google’s.

What actively hurts

Keyword density habits, publishing to a cadence, and rank tracking as the success measure. All three make AEO performance worse rather than merely neutral.

The proof standard

An SEO agency proves work with rankings. An AEO agency proves work with server logs, scriptless fetches and a dated prompt set. If the evidence looks like SEO evidence, the work probably was.

The two questions that separate practitioners from vocabulary

Ask whether they will fetch your commercial templates with JavaScript disabled before quoting, and ask which crawlers they will test for by name. Both answers are short, and both are difficult to fake.

An agency that has run the first test knows your biggest cost variable before pricing. An agency that can name the crawlers has looked at a robots.txt recently. Neither question requires you to understand the answer in depth — it is the presence of a specific answer that tells you what you need to know.

What a competent agency does in the first two weeksWhat a competent agency does in the first two weeks
Notice there is no content audit in the first fortnight. Content is not the constraint until the page can actually be reached and parsed.
Render test — Ask first. Will you fetch our templates with JavaScript off before quoting?.
By name — Ask first. Which AI crawlers will you test for, specifically?.
Server logs — Ask first. Do you need log access, and what will you look for?.
Baseline — Ask first. What will you record before we start, and how?.
Separation — Ask first. How will AEO results be reported apart from rankings?.
Month six — Ask first. What should have moved by then, and what if nothing has?.

What should be in an AEO proposal

Six deliverables, and a clear statement of which of them your own developers will implement. The last part matters more than buyers expect, because rendering fixes are frequently an engineering job rather than an agency one.

A proposal that is mostly a content calendar is an SEO proposal. A proposal that leads with llms.txt is a proposal built on a checklist rather than on your site.

Access report — Deliverable. Crawler hits from your logs, by bot, with status codes.
Render verdict — Deliverable. Per template, scripted vs scriptless word count.
Structure pass — Deliverable. Sections rewritten to answer their own headings.
Entity sheet — Deliverable. One canonical description, applied everywhere.
Prompt baseline — Deliverable. Fixed wording, dated, repeatable.
Monthly read — Deliverable. Citation frequency and share of voice, kept apart from rankings.

Specialist AEO agency, full-service agency, or your current supplier?

Ask your current SEO agency the AEO questions first. It is the cheapest option, and a competent technical team can usually do this work once someone asks them to.

Go specialist when your site has real rendering debt and you have no developers to throw at it. Go full-service when AEO has to sit inside a wider programme and coordination costs would otherwise eat the benefit.

Which kind of supplier fits youWhich kind of supplier fits you
The most common right answer is the least exciting one: ask your current SEO agency the AEO questions first. Many can do this and have simply never been asked.
Specialist — Agency type. Deepest technical practice; often no wider marketing context.
Full-service — Agency type. Coordinates with everything else; capability varies most here.
Your SEO agency — Agency type. Usually the cheapest right answer; ask them first.
Freelancer — Agency type. Good for audits; thin for ongoing measurement.
Tool vendor — Agency type. Measures. Does not fix. Not an agency.
In-house — Agency type. Best long-run if you have developer capacity.

The case for your current agency

They already know your site, your stack and your market. The marginal cost of adding crawler and rendering work to an existing retainer is small.

The case for a specialist

Depth. They have tested more sites against more crawlers and will recognise failure modes faster.

The case for full-service

AEO touches PR, content and engineering. If those are already coordinated somewhere, adding a separate supplier creates seams.

The case against a tool subscription alone

A tool tells you that you are absent. It does not tell you why, and it does not fix it.

Is this market authority-locked, or can a small agency actually win it?

It is not locked the way the definition queries are. Median page-one domain authority on the AEO service and agency terms measured 34 to 37 in our September 2026 capture, against 60 on the definition term, and a DA-17 site holds a page-one position here.

That is unusual and it will not last. Established brands are still treating this as a blog topic rather than a service line, which is why specialists with modest authority are outranking them. It is a window, not a permanent condition.

Domain authority of the agencies currently ranking for AEO termsDomain authority of the agencies currently ranking for AEO terms
Not authority-locked the way the definition queries are. Median page-one domain authority measured 34-37 on AEO service and agency terms, against 60 on the definition term, and a DA-17 domain holds a page-one position. Figures from our September 2026 dataset.
How the AEO agency market arrived hereHow the AEO agency market arrived here
The gap between agencies that use the words and agencies that read your server logs is the entire buying problem right now.

What AEO agencies get wrong

Six recurring mistakes, and the first one accounts for most wasted budget in the discipline: starting with content on a site that machines cannot read.

The second most common is measuring with a rank tracker, which will report steady success while the brand is entirely absent from every answer anyone actually receives.

llms.txt first — Myth. Low adoption, not a ranking factor. Hygiene, not leverage.
More content wins — Myth. Retrieval selects passages, not volume.
Keyword density — Myth. Retrieval works on meaning, not term frequency.
Backlinks are dead — Myth. They still drive indexation and authority.
Schema alone — Myth. Markup contradicting the page is worse than none.
You can buy in — Myth. No ad inventory exists in AI answers.

Starting with content

If GPTBot gets a 403 or an empty shell, every article written is invisible to it. Access and rendering come first, always.

Treating llms.txt as the strategy

Adoption is low and it is not a ranking factor. It is hygiene. Anyone leading a pitch with it has a checklist rather than a method.

Confusing mentions with citations

Being named in an answer without a link still has value, but they are different things and should be reported as different things.

Reporting one number

Citation frequency without share of voice, or share of voice without sentiment, hides more than it shows.

Ignoring non-determinism

Answers vary between runs. An agency that does not explain this up front will eventually be accused of fabricating a result they simply could not reproduce.

Selling AEO as separate

It duplicates technical work and produces two contradictory reports.

What it costs and how it should be structured

Published US retainers run roughly $1,500 to $20,000 a month and a one-off audit $1,000 to $4,000, but the number for your site is driven by rendering and template count rather than by the market.

Buy an audit before a retainer unless you already know your rendering is clean. It converts assumptions into a scope and it is the cheapest way to find out whether you need the rest at all.

How an engagement should actually be sequencedHow an engagement should actually be sequenced
Any supplier proposing to start at ‘content’ has skipped the three steps that decide whether content can be reached at all.
Rendering — Cost driver. Dominates every other line in a quote.
Templates — Cost driver. The unit the work is priced in, not pages.
Platforms — Cost driver. Nine engines costs more to measure than one.
Regions — Cost driver. Each market needs its own prompt set.
Listings debt — Cost driver. Manual, slow, unavoidable.
Who implements — Cost driver. Your developers or theirs changes the number.

Want this done for your site?We answer the four vetting questions on this page in our first call, in writing, before you sign anything.

Get a free proposal

Should you hire anyone yet?

If your buyers are not asking assistants for recommendations in your category, and your site is already reachable and readable, the honest answer is not yet. Take a baseline, watch it monthly, and spend the money elsewhere this year.

We would rather say that than sell into it. The signal to revisit is specific: ask the assistants your buyers’ questions once a month, and when competitors start appearing by name and you do not, the position has become worth contesting.

Are you ready to hire an AEO agency at all?Are you ready to hire an AEO agency at all?
Two ‘part’ rows. Local trades usually get more from listings and reviews today. A site with no SEO foundation needs that first, because answer engines retrieve from indexes.
Where an AEO agency earns its fee fastestWhere an AEO agency earns its fee fastest
Top-right is where an agency is worth most. Bottom-left is where an honest agency tells you to spend the money elsewhere this year.
Guarantees — Walk away. Any promise of a specific citation in a named assistant.
Per keyword — Walk away. Pricing built on a keyword count that AEO has no use for.
Rank KPI — Walk away. Rank tracking presented as proof of AI visibility.
No logs — Walk away. Unwilling or unable to look at server evidence.
Blind quote — Walk away. A price produced without testing rendering.
Volume pitch — Walk away. A proposal whose main lever is publishing more articles.

How to run a shortlist in one week

Send three agencies the same four questions, give them the same URL, and compare the specificity of what comes back rather than the polish.

The four: will you render our templates without JavaScript before quoting; which crawlers will you test by name; what will you record as a baseline; and what should have moved by month six. Vague answers to these are not a style difference, they are a capability signal.

What to hold in your head while shortlistingWhat to hold in your head while shortlisting
The zero is the important one. Nobody can sell you placement, so anyone implying they can is describing something that does not exist.

Day 1

Send the same brief and the same URL to three suppliers.

Day 2-3

Read what they send back for specificity, not for design quality.

Day 4

Ask each one what they would do first, and why that thing first.

Day 5

Ask what they would tell you not to buy. The good ones have an answer.

Decision

Pick the one whose first two weeks look like the sequence on this page.

Ask us the four questions before you ask anyone else

We will run the render test and the crawler check on your site and tell you what we find, including if the answer is that you do not need an AEO retainer this year.

/ai-visibility-audit

Everything else we have written on search, AI and getting found

AI, AEO and what is changing

Websites and design

Choosing and working with an agency

Social, content and brand

By industry and by situation

Not sure which of these applies to you?Tell us the situation and we will say plainly what we would do first, and what we would not.

Talk it through

The four questions, side by side, with what good and bad answers look like

Four questions worth asking any AEO agency, each with the answer that should reassure you and the answer that should not.

How to score the answers you get back
QuestionA weak answerA strong answerWhy it separates
Will you render our templates without JS before quoting?We will review your siteYes — send us three URLs and we will return scripted vs scriptless word countsOne is a promise, one is a method
Which crawlers will you test for?All the AI botsGPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-ExtendedNaming them means they have read a robots.txt recently
What baseline will you record?We will track your AI visibilityA fixed prompt set, exact wording, dated, re-run monthlyOnly one of these is reproducible
What should move by month six?You will see improvementsCrawler hits in days, render fixes in weeks, citation frequency over monthsSpecific timelines imply real experience

What an AEO agency should be reporting every month

A monthly report in this field should contain evidence rather than a score, and these are the items that count as evidence.

A monthly report that is actually about answer engines
MetricWhat it measuresWhy it is not a rank tracker
Crawler hits by botWhether access is realComes from your server logs, not a SERP
Scriptless render coverageTemplates machines can readMeasured per template, not per keyword
Citation frequencyHow often you are namedCounted across a fixed prompt set
Share of voiceYou versus competitors in answersNo position exists to track instead
SentimentHow you are describedBeing described wrongly is worse than being absent
Prompt coverageWhich buyer questions you appear onQuestions, not queries

Agency types compared on the things that actually differ

Specialist, full-service, freelance and in-house compared on the dimensions where the choice actually matters.

Choosing a supplier shape
SupplierBest whenWeakest atTypical shape
Your current SEO agencySite is healthy and they are technicalMay never have tested a scriptless fetchAdd to existing retainer
Specialist AEO agencyReal rendering debt, no in-house devsLittle wider marketing contextAudit then retainer
Full-service agencyAEO must coordinate with PR and contentCapability varies most hereBundled retainer
Freelance consultantOne-off audit or a second opinionOngoing monthly measurementFixed-fee project
Tool vendorYou have people to act on findingsDoes not implement anythingSubscription
In-houseLong-run, with developer capacitySlow to build the practiceHeadcount

What we will tell you not to buy

Four things commonly sold in this category that we would advise against, with the reasoning rather than the slogan.

Where we would decline the work
SituationOur recommendationWhy
Local trade competing on ‘near me’Listings, reviews, Google Business ProfileStill outperforms AEO for this buyer today
No existing SEO foundationFix indexation firstAnswer engines retrieve from indexes
Wants guaranteed citationsNo supplier, including usNobody controls model output
Wants results proven by rankingsReconsider the channelRank tracking cannot measure this
Site already clean, category not question-ledBaseline and waitSpend returns more elsewhere this year

Getting found in search

AI, AEO and what is changing

Paid media and lead generation

Websites and design

Choosing and working with an agency

Social, content and brand

By industry and by situation

Frequently asked questions

What is an AEO agency?
An agency that works to get your pages quoted as named sources inside AI-generated answers. In practice that means proving AI crawlers reach your site, making pages render without JavaScript, restructuring so sections answer their headings, making every description of your business agree, and measuring against a fixed prompt set.
What is the difference between an AEO agency and an SEO agency?
Most of the technical foundation is shared. An AEO agency spends more hours on technical work and measurement and fewer on content volume, and proves its work with server logs and prompt sets rather than rankings.
What should I ask an AEO agency before hiring?
Four things: will you render our templates without JavaScript before quoting, which crawlers will you test by name, what baseline will you record, and what should have moved by month six.
How much does an AEO agency cost?
Published US retainers run roughly $1,500-$20,000 per month and a one-off audit $1,000-$4,000. The figure for your site depends mainly on rendering health and template count.
Can an AEO agency guarantee I will be cited by ChatGPT?
No, and any agency that offers this should be removed from your shortlist. Nobody controls model output, and citation results shift on model updates outside anyone’s control.
Should I hire a specialist or use my current SEO agency?
Ask your current agency the AEO questions first. It is usually the cheapest right answer, and a competent technical team can do most of this once asked.
Is AEO priced per keyword?
No. There is no ranked list inside an AI answer, so there is no per-keyword unit. Work is scoped by templates, prompts and platforms.
What does an AEO agency deliver in month one?
A crawler access report from your server logs, a rendering verdict per template, and a dated baseline against a fixed prompt set.
How do I know an AEO agency is real and not just using the words?
Specificity. They name crawlers, they ask for logs, they test rendering before quoting, and they can tell you what they would advise you not to buy.
Do AEO agencies do link building?
Indirectly. Third-party corroboration matters a great deal, but for agreement rather than for link equity — independent sources repeating what you say is what makes a claim safe to quote.
Is llms.txt something my agency should prioritise?
No. Adoption is low and it is not a ranking factor. It is hygiene. An agency leading with it is working from a checklist.
How long should I sign for?
Six months is the shortest term that produces an honest reading, because citation frequency does not settle before then.
Can a small agency compete in this market?
In the commercial service queries, yes. Our September 2026 capture put median page-one domain authority at 34-37 on those terms, with a DA-17 domain holding a page-one position. Definition queries are a different matter: the lowest page-one authority we measured there was 56. That window will close.
What is a GEO agency and is it different?
Same discipline, different label. GEO emphasises the generative surface, AEO the answer. Neither changes what gets done on your site.
Should AEO be a separate contract from SEO?
Usually not. Splitting it produces duplicate technical work billed twice and two reports that contradict each other.
What if my site is built in React or Vue?
Then rendering is your largest variable and it should be tested before anyone quotes. It may need server-side rendering or prerendering, which is an engineering project rather than an agency line item.
Do I need an AEO agency if my traffic is fine?
Not necessarily. Take a baseline and watch it monthly. The signal to act is competitors appearing by name in answers where you do not.
What does an AEO agency report monthly?
Crawler hits by bot, scriptless render coverage, citation frequency, share of voice, sentiment and prompt coverage — reported separately from any search rankings.
Which industries get the most from an AEO agency?
B2B SaaS, professional services, healthcare, fintech and manufacturing. Local trades and walk-in retail get less from it today than from listings and reviews.
What is the first thing a good agency does?
Reads your robots.txt against the current AI crawler list and fetches a commercial template with JavaScript disabled. Both take minutes and both change the scope.
How do I compare two very different quotes?
Compare templates in scope, prompts tracked, platforms measured, and who implements rendering fixes. Those four explain almost every price gap.
Can I do this in-house?
Yes, if you have developer capacity. The practice is learnable and the tooling is cheap. What takes time is building the judgement about what to fix first.

Want this done for your site?We build and maintain the search, content and paid programmes described on this page.

Get a free proposal

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Tell us what you are trying to grow and we will come back with a plan, not a pitch deck. Same-day reply on weekdays.

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