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An SEO consultant helps a business earn more qualified traffic, leads or sales from unpaid search. They work out what is limiting that, decide what should change and in what order, and either make the change or direct the people who will.
That definition is easy. What it means day to day is less obvious, and it is the part that determines whether hiring one works. So this page is about how the role actually operates inside a business: where it sits, what it decides, who it depends on, and what it hands over.
The problem a consultant is hired to solve
Almost every engagement starts from one of four situations.
- Something broke and nobody can explain it. Traffic fell, and the candidate causes (a migration, a tracking change, seasonality, lost indexation, an algorithm update, pages competing with each other, or simply less demand for the brand) need different responses. Guessing wrong costs months.
- Effort is going in and nothing is coming out. Content is being published, work is being done, rankings are flat. Usually a structural or intent problem rather than a volume one.
- Something large is about to happen. A replatform, a new site, an international rollout. Decisions made before launch are cheap; the same decisions after launch are expensive.
- Capable people have no direction. An in-house team executing well against no strategy is one of the most common patterns in SEO, and one of the easiest to fix.
Notice that none of those is "we need SEO". The value of a consultant is in narrowing a vague concern to a specific, testable diagnosis, and the rest of the work follows from that.
Where the role sits inside a business
SEO is unusual among marketing disciplines in that the person responsible for the outcome rarely controls the things that produce it. A consultant's real job is to work across four groups who each own part of the answer.
| Function | What the consultant needs from them | Where it goes wrong |
|---|---|---|
| Leadership | Agreement on which commercial outcomes matter, and authority to change things that cross team boundaries | SEO is judged on traffic while the business is judged on margin |
| Product and development | Time in the release cycle, and a say in template and platform decisions before they are made | Recommendations arrive as tickets in a queue nobody prioritises |
| Content | Capacity to produce and, more often the bottleneck, to approve | A strategy is delivered to a team with no room to write |
| Analytics | Reliable measurement, and honesty about what it cannot tell you | Nobody agrees what success looked like until after it did or did not happen |
Where an external agency is already engaged, the consultant usually ends up coordinating that relationship too: setting the brief the agency works to, and judging whether what comes back is worth what it costs.
From recommendation to result
The distance between "we should fix this" and "revenue moved" is where most SEO investment is lost. Five stages, and a recommendation can die at any of them.
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Business objective
Which products, markets or margins actually matter. Strategy that ignores this produces traffic that does not pay for itself.
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Diagnosis
What is limiting performance, established from evidence rather than assumed. This is the part you are really paying for.
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Decision
What gets done, in what order, and explicitly what does not. Prioritisation is the skill; a list of findings is not a plan.
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Implementation
Someone builds, writes or ships it. Usually not the consultant, which is why who does it must be settled at the start.
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Measurement
Against measures agreed before the work began, separated into what was delivered, what moved in search, and what the business earned.
A consultant who only operates at stages two and three will produce good advice that never lands. One who only operates at stage four is a contractor. The useful ones move across all five and are honest about which stage a problem is stuck at.
Three ways a consultant can operate
These are genuinely different purchases, and buying the wrong one is the most expensive mistake available.
- Specialist adviser. Brought in for judgement on a defined question. Your team owns everything else. Cheapest per hour, and useless if nobody internally has capacity to act.
- Project lead. Owns a bounded piece of work end to end, including the parts that do not need your codebase: research, briefs, metadata, audits, reporting. Development still goes through your team.
- Fractional SEO leader. Owns the function part-time. Sets the roadmap and the KPIs, sits in planning, and manages whoever executes, including agencies. Covered in detail in fractional SEO director versus SEO freelancer.
The common failure is buying an adviser when the actual shortage was delivery capacity, then concluding that SEO does not work.
What a consultant produces, and who acts on it
Ask this before signing anything, because the answer determines whether you get a result or a document.
| Output | Who acts on it |
|---|---|
| A diagnosis, with the evidence behind it | You, deciding whether to invest at all |
| A prioritised plan with owners and effort estimates | Whoever runs your roadmap |
| Technical specifications and acceptance criteria | Developers |
| Content briefs and page-level direction | Writers and editors |
| Measurement framework and reporting | You and the consultant together, monthly |
A 200-point audit with no ordering and no owner against each item is not one of these. It is a list, and lists are the most common thing people are disappointed to have bought.
What the work covers
Across those outputs, the underlying disciplines are technical SEO (crawling, rendering, indexation, canonicalisation, speed, redirects, migrations), demand and keyword research, on-page and content strategy, authority and reputation, and measurement. On an ecommerce site add catalogue and category architecture, faceted navigation, variant and stock signals, product feed alignment, and governance across brands and markets. That last group is where a generic audit and a useful one differ most.
Where AI search fits
Increasingly a consultant also considers how a brand is represented in AI Overviews and assistant answers. There is no separate ranking formula for those surfaces and no special markup required; the work is clearer content with better evidence behind it, consistent information about the brand across the places that describe it, and measurement that conventional rank tracking does not provide. Treat "AI SEO", "AEO" and "GEO" as labels for offers rather than as replacements for the fundamentals.
What an SEO consultant does not replace
Worth being direct about, because a lot of disappointment starts here.
- Developer capacity. A consultant specifies; somebody still has to ship. If your queue is six months, that is the problem to solve first.
- A content function. Briefs are not articles. Someone has to write and approve them.
- A decision-maker. Recommendations that need approval nobody will give are wasted spend.
- Product-market fit. Organic traffic will not fix a conversion problem that begins at the offer, and some products have no meaningful search demand at all.
- Time. SEO compounds. It is the wrong channel for a result needed in weeks.
A consultant worth hiring will tell you when one of these is the actual constraint, even though saying so costs them the work.
Next steps
If you are weighing this up, the two questions that follow are what it costs and how to pick someone. Both have their own pages: how much an SEO consultant costs sets out what each level of spend actually buys, and how to choose an SEO consultant covers evaluating and appointing one.
Recognise your business in any of this? Send me the site URL, what you are seeing, and what you have already tried. I will tell you what I would investigate first and whether consultancy is likely to help. If the answer is that it would not, I will tell you that too.
Frequently asked questions
What should an SEO consultant deliver?
At minimum: a diagnosis of what is actually wrong, a prioritised set of actions with owners and effort estimates against each, and agreed measures of success. A list of findings with no ordering and no owner is an audit, not an engagement.
What access does an SEO consultant need?
Usually read access to Google Search Console and your analytics, the ability to crawl the site, and a conversation with whoever owns the codebase and the content. Deeper work may need log files, staging access or a look at your CMS templates. Keep ownership of every account in your own name, and start with read-only.
Who implements an SEO consultant's recommendations?
Usually your own team, which is why it should be settled before the engagement starts rather than discovered afterwards. Consultancy typically covers diagnosis, strategy and specification; changes to your codebase, templates or CMS go through your developers. Some consultants will also do the parts that do not need your codebase, such as research, briefs and metadata.
Can an SEO consultant help with ecommerce SEO?
Ecommerce is a distinct specialism rather than general SEO applied to a shop. Catalogue architecture, faceted navigation, variants, stock and price signals, feed alignment and multi-brand governance are problems a brochure site never has. Ask specifically about experience at your catalogue size and on your platform, because the failure modes differ enormously between a few hundred products and a few hundred thousand.
How does an SEO consultant work with an existing agency?
Normally by setting the brief the agency delivers against and judging whether the output justifies the cost. That works when the consultant's role is stated openly at the start. It goes badly when an agency discovers mid-engagement that someone has been brought in to mark their work.
Working with me
Independently I take on a small number of consultancy engagements: hourly sessions for a specific question, project work for migrations, audits and content strategy, and monthly retainers where priorities move continuously.
If you are not sure which of those you need, that is a reasonable thing to work out in a conversation. Get in touch and describe the problem.