How to choose an SEO consultant
Written for someone collecting two or three quotes with no way of telling which is any good. It includes the cases where an agency suits you better than I do.
What you're actually buying
You are not buying positions. You are buying someone's judgement about what to fix first and what to leave until next quarter, given your budget and your trade. Two consultants with identical tools can hand you completely different plans, and the one worth having is the one who has understood where your money comes from.
Which is why the useful questions are hardly ever about SEO. They are about how that person works, what happens when something does not work, and what you are left holding if the two of you part company.
Questions worth asking
The answers matter less for their content than for their shape. Anyone who cannot explain their work in language you follow will not be able to explain the invoice either.
Answers that should worry you
How to read a proposal
A useful proposal reduces to one sentence per heading: what gets done, when, by whom, what it costs, and what is not included. If you have to read it twice to work out what you will receive, the problem is not you.
Look for three things. Countable deliverables: "rewrite 12 product pages" can be checked, "ongoing on-page optimisation" cannot. The exclusions: if nothing says what falls outside the scope, everything will fall outside it the day you ask. And the hours or monthly scope, because 400 and 1,200 euros a month do not buy the same number of working days, and that is the whole difference.
Then read the dull part: payment terms, notice period, and whose name the copy and code end up in. If it is not there, ask for it in writing before you sign.
A real audit, and a generated PDF
Both cost money and only one is any use. You can spot the generated one immediately: eighty pages, a traffic-light chart, a score out of a hundred, and a list of "errors" ordered by what the tool detected rather than by what is costing you sales.
One worth paying for is prioritised. It opens with the three or four things holding you back most and explains why that order. It names your own pages by URL. It separates what your developer can fix from what you have to decide. It says how much work each item is, even as a range. And it ends with a plan you could execute without rehiring the person who wrote it, even if you end up rehiring them.
One move before you pay: ask to see the contents page or an anonymised example. Anyone who has written real audits has one to hand.
Freelance or agency
I have an obvious stake in this question, so I will answer the half that goes against me first.
When an agency is the better choice
If you need SEO, paid campaigns, design and development running in step, an agency saves you from conducting the orchestra. If you publish at volume — dozens of articles or product pages a month — that needs a writing team, not a person. If you operate across several countries and languages, or your site is large enough that the technical work never ends, one person’s capacity runs out. And there is a risk I cannot paper over: if I am ill, there is nobody behind me; an agency has cover. If your company requires approved suppliers, that structure exists for a reason.
When one person is the better choice
If your site is a manageable size and what you need is judgement rather than production-line output. If it matters to you to always speak to the person doing the work, without the brief passing through a salesperson, an account manager and a junior first. If your budget is the kind that puts you on an agency’s bottom rung with their most junior staff, while the same money buys direct access to someone who has been doing this a while.
One dull signal worth more than the rest
That the person tells you no about something: that the shop will not work with that catalogue, that the service you asked about has too little search volume in your region, or that what you need first is not SEO but a website that works. Anyone who says yes to everything on the first call will bill you for eight months before you find the problem.
If you want to see how I answer these questions myself: How I work is the long version, step by step, and About is who I am and where I work from.