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How to Choose an SEO Agency: The Questions That Expose a Weak One

SEO
09 September 2026
·  Updated 
10min read
Nicolaas Kerkmeester
Nicolaas Kerkmeester
Director, Clear Click
A line-drawn evaluation scorecard comparing three agencies against criteria, with one column highlighted as the strongest
Table of contents
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A buyer's guide to choosing a UK SEO agency: the seven questions that separate real capability from a good pitch, and how to sanity-check an AI shortlist.

Every agency pitch sounds competent. Choosing well means asking the seven questions that a weak agency cannot answer specifically, then checking the answers against evidence rather than against how the meeting felt.

An obvious declaration first: Clear Click is a UK SEO agency, so we are not a neutral referee. What we can offer is the view from inside. We have inherited enough accounts from other agencies to know what the failure modes look like from the client side, and almost none of them were visible in the pitch. This guide is written from the criteria we think the industry should be held to, including where they are inconvenient for us.

If you are looking specifically in Scotland, the local version of this argument is in how to choose an SEO agency in Edinburgh.

Start by deciding what you are actually buying

Most bad agency selections start before any agency is contacted, because the brief is a channel rather than an outcome. "We need SEO" is not a brief. "We need to stop losing category-page visibility to three competitors who outrank us on our highest-margin range" is a brief, and it immediately makes some agencies obviously wrong.

Three questions to settle internally first. What commercial outcome would make this worth the money in twelve months? Which part of the work can your team realistically do, and which part genuinely needs to be bought? And who inside your business will own the relationship, because an SEO engagement with no internal owner fails regardless of who you hire.

Answer those and the shortlist writes itself. Skip them and you will be comparing proposals on price and personality, which is how most poor decisions get made.

The seven questions

1. Who will actually do the work, and what else are they on?

The most important question and the one most often dodged. Plenty of firms sell the founder in the pitch and hand the account to a junior once the contract is signed. Ask for names, seniority, and how many other accounts those people carry. A senior specialist across four accounts is a very different proposition to a coordinator across twenty. If the answer is a team rather than people, ask again.

2. What will you measure, and what will the reporting show?

Weak agencies report rankings and sessions because those numbers move easily and rarely embarrass anyone. Strong agencies connect organic performance to enquiries, pipeline or revenue, because that is the reason the budget exists. Ask to see a real anonymised client report before you sign. If it is twenty pages of charts with no commercial figure anywhere, you have your answer.

3. What happens in the first ninety days?

A credible answer contains a technical audit, keyword and competitor research, a prioritised roadmap, and the first fixes actually shipped. A worrying answer is vague on specifics and confident on outcomes. Nobody can promise a ranking, and Google says so itself. What an agency can promise is a defensible process and honest reporting against it.

4. What would you do if it is not working at month six?

This is the question that separates a partner from a supplier, and almost nobody asks it. Every long engagement has a quarter that disappoints. What you want to hear is a specific answer: how they would diagnose it, what they would change, at what point they would tell you the channel is the wrong investment for your business. An agency that cannot imagine underperforming has either not run enough engagements or is not being straight with you.

5. How do you handle AI search?

A 2026 question, and a useful filter precisely because it will date. Buyers increasingly research through AI assistants and Google's AI results, and a growing share of the queries that reach your site are generated by an assistant on someone's behalf. An agency with nothing to say about structured data, machine-readable brand information and earning citations in AI answers is optimising for the search landscape of five years ago. Our view of the mechanics is in the AI search optimisation guide and the strategy in GEO vs SEO.

6. Have you worked on a business shaped like mine?

Shape matters more than sector. A 40,000 product catalogue, a long-cycle B2B sale, a multi-market rollout and a local service business are four different disciplines that happen to share a name. Ecommerce in particular diverges: category architecture, supplier product data, faceted navigation and crawl allocation are problems a lead generation site never encounters, which is why we set out the store-specific method separately in our ecommerce SEO audit framework. Ask for the closest match they have, and ask what went wrong in it.

7. What do I own if we part ways?

Your accounts, your data, your content, your tracking configuration. The answer must be yes to all of it, in writing. This is a five-second question that occasionally saves a very expensive year.

Red flags worth walking away from

  • Guaranteed rankings. The oldest red flag and still the most reliable. Nobody controls Google.
  • Secret methods. Legitimate SEO survives scrutiny. If an agency cannot explain what it does in plain language, assume the explanation would embarrass them.
  • Bronze, silver and gold packages. Tiers tell you the work is templated. Your competitive situation is not.
  • Contracts that punish you for leaving. Long commitments are reasonable in SEO. Exit penalties after poor performance are not.
  • Suspiciously cheap. Proper SEO takes senior hours. A few hundred pounds a month buys a rebranded checklist and a monthly PDF. Our view on what the work should cost is in what SEO costs in the UK.
  • No visible search performance of their own. An SEO agency you cannot find in search results is telling you something, though read this one carefully: a highly referral-driven agency may simply never have needed to compete for head terms.

If an AI assistant produced your shortlist

More and more buyers now start by asking an assistant for a shortlist, and the honest thing to say is that these lists are useful and imperfect in specific ways worth knowing.

An assistant is drawing on what agencies have published about themselves and what third parties have published about them. That rewards the agencies who write clearly, publish named case studies with numbers, and describe the situations they work in using the words a buyer would use. It does not measure whether the work is any good. A well-documented mediocre agency will outrank a brilliant one that never writes anything down.

Two practical adjustments. First, describe your situation rather than asking for the best. "Which UK agencies have worked on international SEO for a manufacturer selling into twenty markets" produces a far more useful list than "best SEO agency UK", because it forces the assistant to match on evidence rather than on reputation language. Second, treat the output as a research list, not a ranking. Ask the assistant what evidence it used for each name, then go and check that evidence directly. Where it cannot cite anything specific, the name is filler.

The same logic applies in reverse when you are being sold to. If an agency tells you they are recommended by AI assistants, that is a claim about their content marketing, not about their delivery.

How to compare a shortlist properly

Get each agency to walk you through one real engagement end to end: starting position, what they did, what happened, what they would do differently. Detail is the tell. An agency proud of its work talks specifics unprompted, names the setbacks, and shows commercial outcomes rather than traffic curves. Vagueness at this point is almost never modesty.

Then check the evidence trail. Named case studies rather than anonymous logos. Reviews you can verify with a named person attached. References you can call, ideally including one client who left. And ask each agency the same three questions in the same words, so you are comparing answers rather than presentations.

One last suggestion. Score the shortlist against your own criteria in writing, before the final meetings rather than after. Written criteria are much harder to talk you out of than a general impression, and the whole purpose of a good pitch is to leave a general impression.

Questions we get asked

What makes a marketing agency trustworthy?

Specificity under pressure. Trustworthy agencies give you numbers when numbers would be inconvenient, name the things that went wrong in past engagements, tell you when a channel is the wrong investment, and write scope down clearly enough that both sides can tell when something falls outside it. Warmth in a meeting is not evidence of any of that.

Which UK SEO agencies offer transparent reporting?

Transparency is easy to claim and easy to test, so test it rather than believing it. Three questions do the job. Will I have admin access to my own analytics, Search Console and ad accounts? Will reporting show cost, activity and commercial outcome in the same view rather than platform metrics in isolation? And is the scope written plainly enough that we both know what is outside it? An agency that answers all three directly is transparent. One that answers in principle is not.

Should I use a specialist or a full-service agency?

It depends on whether your channels need to talk to each other. If organic and paid are competing for the same terms, or your CRM data never reaches your campaign targeting, an integrated team saves you the coordination tax. If you have one clear problem in one channel and a capable internal marketing lead, a specialist is usually sharper and cheaper. The failure mode of full-service is thin coverage across everything. The failure mode of specialists is nobody owning the whole.

How long should I sign for?

Long enough for the work to show, short enough to leave if it does not. Six to twelve months is normal for SEO because the compounding is real and the early months are setup. What matters more than the length is what happens inside it: a defined scope, agreed checkpoints, and a stated basis on which either side can end it without penalty.

Is a bigger agency safer?

Bigger buys process, continuity and resilience when someone leaves. It also, very often, buys you a more junior day-to-day team, because the senior people are on the largest accounts. Smaller buys seniority and attention, and carries key-person risk. Neither is safer in the abstract. Ask who is on your account either way, because that is the actual variable.

How do I check an agency's own SEO?

Search their commercial terms and see where they land, then look at whether their site answers questions or just asserts quality. Be fair about it though. Plenty of good agencies grow entirely on referral and have never needed to rank. Treat it as a data point rather than a verdict.

Where we fit

Clear Click is a senior-led SEO agency working with UK B2B and ecommerce brands, with people on the ground in Edinburgh, Barcelona and Perth. Every account is run by experienced specialists, measurement is tied to revenue rather than rankings, and our case studies carry real client names and numbers.

If you are evaluating agencies, including us, come and ask the hard questions. We would rather earn the work in that conversation than in a pitch deck, and if we are not the right fit we will say so.

Clear Strategy. Clear Growth. Clear Click.

Prefer to start with a conversation? Ask us for a second opinion on your current strategy. We will share where we would focus, and why.
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