How to Choose an SEO Agency: Questions That Reveal Real Capability
Table of Contents
How to choose an SEO agency comes down to five questions and the discipline to listen properly to the answers. Not the pitch deck, not the case study slides, not the tool logos on the proposal. The questions below are designed so that a capable agency answers them easily and a report factory has to bluff, and the bluff is audible if you know what you are listening for.
Most buyers approach how to choose an SEO agency by asking the wrong things. They ask about rankings, deliverables, and how many keywords are included, because those feel like what SEO is. Those questions have safe answers that every SEO agency has rehearsed. What follows are the questions that do not have safe answers, each with what a good reply sounds like and what a poor one is hiding. There is also a section most agencies will not write: when hiring anyone at all is the wrong decision.
What This Framework Replaces
The standard approach to how to choose an SEO agency is to collect three proposals from three SEO companies, compare monthly fees and deliverable counts, and pick the one that feels most confident. That process reliably selects for sales ability rather than capability, because proposals are written by people who are good at writing proposals.
Google’s own guidance on hiring an SEO makes a point worth carrying into every conversation: ask an SEO to support recommendations with official documentation. That single habit filters out a large share of the market, because agencies working from inherited assumptions rather than current guidance cannot produce the citation.
The five questions extend that principle. Each one asks the agency to describe something specific that actually happened or would actually happen, rather than something they believe about themselves. Specificity is the tell. Capable practitioners answer with detail because they have the detail; report factories answer with adjectives.
The Five Questions
Ask these in a call rather than by email. Every capable SEO agency will handle all five without preparation. The value is partly in the answer and partly in whether it arrives immediately or after a pause.
1. Who Does the Actual Work?
The most useful question in the set, and the one most often skipped when comparing SEO companies.
A good answer names people and describes the split. Something like: the strategy and the monthly review come from the person in the room, technical audits from a named specialist, content from two writers who work on this account specifically, and link outreach is handled in-house or by a named partner. A capable SEO agency will also tell you plainly which parts are outsourced, because outsourcing is normal and hiding it is what causes problems.
A poor answer stays at the level of “our team”. Watch for the pattern where the person selling is impressive and the person delivering is never named, never joins a call, and turns out to be junior or offshore with no context on your sector. Ask directly: will the person I am speaking to now be on the monthly call in month seven? If the answer wanders, you have learned something important about how the account will feel by the spring.
Follow it up with a question about capacity. How many accounts does the person doing my work handle? There is no correct number, but an agency that has never thought about it is an agency where the answer is probably too many.
2. Tell Me About a Client Where Results Took Longer Than Expected
This is the question that separates capable SEO agencies from report factories most cleanly, because it asks for a story that does not flatter.
A good answer is specific and slightly uncomfortable. A real practitioner will describe a situation: the site had a migration problem nobody had disclosed, or the client could not get sign-off to publish, or the sector turned out to be dominated by three national players with budgets they could not match. They will explain what they changed, what they got wrong at the start, and how they handled the conversation with the client. Some will tell you they resigned the account. That is a good sign, not a bad one.
A poor answer reframes the question. The common evasions are to describe a slow start that turned into a triumph, to blame the client entirely, or to claim it has never happened. Anyone who has done this work for a few years has accounts that underperformed. An agency claiming otherwise is either new, dishonest, or does not track outcomes closely enough to know.
Listen also for whether they knew it was going wrong before the client did. Capable teams notice at month three. Report factories notice when the renewal conversation goes badly.
3. How Do You Report, and What Do the Numbers Connect To?
Every SEO agency reports. The question is what the reporting is for.
A good answer starts at the commercial end and works backwards. Enquiries, calls, form completions, booked jobs, revenue where it can be tracked, and then the search metrics that explain movement in those numbers. A capable agency will also tell you which of your outcomes they cannot measure and why, and will ask what your average customer is worth before they propose anything, because that number determines whether the work is viable at all.
A poor answer leads with rankings and traffic volume. A dashboard full of green arrows can coexist with a phone that rings no more than it did last year, and plenty of SEO services are sold on exactly that gap. Two specific warnings: keyword ranking counts without commercial context are close to meaningless, since it is easy to rank for terms nobody valuable searches, and impressions growth on its own can simply mean Google is showing you for more queries you never wanted.
Ask what a bad month looks like in their reporting. If there is no answer, the reporting is not designed to show you one.
4. What Would You Do in the First Ninety Days on Our Site?
This tests whether they have looked at your site before the call.
A good answer is specific to you and provisional. They will have opened your Search Console picture as far as they can from the outside, looked at your competitors, and formed a hypothesis. They will name one or two things they would check first and say plainly that the plan may change once they have access. Genuine uncertainty stated out loud is a capability signal. So is a first ninety days that includes fixing things rather than only producing things.
A poor answer is a template. Audit in month one, keyword research in month two, content in month three, the same for every client regardless of sector, site condition or starting position. The other warning sign is a plan that consists entirely of new content production. Some sites need content. Many need consolidation, technical repair, or internal linking work first, and an agency whose ninety-day plan is always publishing is an agency that only knows how to publish.
If they promise specific rankings by a specific date, end the conversation. Nobody can promise that.
5. How Do You Handle AI Search?
AI search is recent enough that answers vary wildly between SEO companies, which makes it a useful test.
A good answer is measured and grounded. They will talk about content structured so discrete questions get self-contained answers, entity clarity, and consistency between your site and your other public records. They will mention that Bing Webmaster Tools reports AI citation counts and that this is currently one of the few measurable signals available. They may say honestly that attribution from AI search to enquiries is difficult and that they are still building a view of it. Google’s own position is that guidance on optimising for AI features should align with its existing search guidance, and a capable agency will frame it that way rather than as a separate discipline.
A poor answer goes to one of two extremes. Either AI search is dismissed as hype not worth attention, which ignores where a growing share of buyer research now happens, or AI search is sold as a proprietary system with a new acronym and a separate fee. Be particularly wary of anyone claiming they can guarantee citations in AI answers. Nobody controls that.
When an SEO Agency Is the Wrong Answer
Most articles on how to choose an SEO agency assume you should hire one. Often you should not, and the honest version of this framework has to include the cases where the money is better spent elsewhere.
When nobody internally can act on recommendations. This is the most common failure and it has nothing to do with agency quality. An agency delivers a technical audit, a content plan and a list of site changes. Those need a developer to implement, someone to approve copy, and someone to answer questions. A business with no capacity to do any of that pays for recommendations that sit in a folder. The retainer runs, the reports arrive, nothing changes, and everyone concludes SEO does not work. If your team cannot commit a few hours a month to acting on the work, fix that before signing anything.
When training the in-house team delivers more. A business with a marketing person who is capable but untrained often gets better value from a few days of structured training and a documented plan than from a monthly retainer. The knowledge stays in the business, the ongoing cost is lower, and the person doing the work understands the customers better than any agency will in the first year. This is particularly true for local businesses whose SEO need is genuinely a Business Profile, a handful of service pages and a review habit. A regional buyer weighing that trade-off against hiring an SEO agency in Belfast or elsewhere should price both options before assuming the retainer is the default.
When the site itself is the problem. No SEO agency can rank a site that cannot carry the work. If the website is fundamentally broken, unmaintainable, or built on a platform that cannot support what the business needs, SEO work on top of it is money spent on foundations that will be replaced. Fix or rebuild first.
When the commercial maths does not work. If your average customer value is low, your margins are thin, and your sector is dominated by national players, the honest answer may be that organic search is not the right channel to lead with. An agency willing to say so is worth more than one willing to take the retainer.
A useful test when comparing SEO companies: raise one of these scenarios and see how they respond. An agency that talks you out of something, or proposes training and a smaller engagement instead, is demonstrating exactly the judgement you are trying to buy.
Red Flags and Green Flags at a Glance
| Signal | What it usually means |
|---|---|
| Guarantees specific rankings or positions | End the conversation. Nobody can promise this |
| Cannot name who does the delivery work | Sales and delivery are separated; expect a drop after signing |
| Every underperforming account was the client’s fault | Either not tracking outcomes or not honest about them |
| Reporting leads with rankings and impressions | Reporting designed to look good rather than inform decisions |
| Identical ninety-day plan for every client | Process is a template, not a diagnosis |
| Asks what your average customer is worth | Thinking commercially before proposing anything |
| Volunteers what they cannot measure | Confident enough to state limits |
| Cites Google documentation for recommendations | Working from current guidance rather than inherited habit |
| Suggests you may not need them | Judgement worth paying for |
Final Thoughts
Knowing how to choose an SEO agency is mostly about resisting the pull towards comparable proposals. Fees and deliverable lists are easy to compare and tell you very little. The five questions above are harder to score and tell you almost everything, because they ask an agency to be specific about people, failures, commercial outcomes, your particular site, and a fast-moving area where bluffing is easy to spot.
Take notes during each call and compare the answers rather than the documents afterwards. The pattern usually resolves quickly. One agency will have given you detail, admitted limits, and asked about your business before describing their process. If you would rather test this on the agency writing it, ask us these questions directly and judge the answers by the same standard.
Frequently Asked Questions
How do I choose an SEO agency without technical knowledge?
You do not need technical knowledge to assess capability. Ask who does the delivery work, ask for a story about an account that underperformed, ask what their reporting connects to commercially, ask what they would do first on your site, and ask how they approach AI search. Capable agencies answer all five with specific detail. You are assessing the specificity and honesty of the answers, not verifying the technical content of them.
What questions should I ask SEO companies before signing?
Beyond the five in this guide, ask who owns the accounts and assets created during the engagement, what the notice period is, what happens to content and links if you leave, and whether they will support recommendations with official Google documentation. That last one is Google’s own advice for evaluating an SEO, and it filters out a large share of the market quickly.
How much should an SEO agency cost?
Pricing varies too widely for a useful benchmark, and the more revealing question is what the fee buys in hours and who those hours belong to. A retainer that funds a few hours of a senior practitioner is a different product to one that funds many hours of a junior. Ask for the split. Also work out what one new customer is worth to you, since that determines whether any given fee can plausibly pay for itself.
How long before an SEO agency should show results?
Google’s own guidance suggests four to twelve months is realistic for meaningful movement, and any agency promising faster is either working in an unusually easy niche or overselling. What you should see much sooner is activity you can verify: fixes implemented, pages changed, technical issues resolved. Ask at the outset what evidence of progress will look like in month two, before rankings move.
Should I hire a local SEO agency or a remote one?
Location matters less than sector understanding and communication, with one exception: if your business depends on local search in a specific region, an agency that knows that market has a real advantage in understanding local competitors, search behaviour and regional context. For national or e-commerce work, proximity matters much less than the quality of the people assigned to the account.
What are the biggest red flags when choosing between SEO companies?
Guaranteed rankings, unwillingness to name who does the work, refusal to discuss an account that went badly, reporting built entirely on rankings and traffic volume, an identical plan for every client, and any proprietary method that cannot be explained in plain language. Any one of these is a reason to look harder. Two or more together is a reason to walk.
Do I need an SEO agency at all?
Not always. If nobody internally can act on recommendations, if a trained in-house person would cover the actual need, if the website itself needs rebuilding first, or if the commercial maths does not support the channel, a retainer will disappoint regardless of who you hire. Training, a one-off audit with a documented plan, or fixing the site first are all legitimate alternatives, and a good agency will tell you when one of them fits better.
How do I evaluate an agency’s approach to AI search?
Listen for grounded specifics rather than either dismissal or hype. A capable answer covers content structured for extraction, entity consistency across your public records, and the measurement that currently exists, including AI citation reporting in Bing Webmaster Tools. It should align with Google’s published guidance rather than being presented as a separate discipline with its own fee. Nobody can guarantee citations in AI answers, so treat any such claim as disqualifying.