Choosing an SEO Partner
How to Choose an SEO Agency
The short answer
Choose an SEO agency that can explain the work, carry it out and show evidence relevant to your business. Familiar logos and impressive keyword totals are not enough. Look for a team you can work with, not an unverifiable best-agency claim.
On this page
Write the job before the shortlist
Start with one page that every candidate receives. Otherwise, one agency may quote for writing, another for advice and a third for rebuilding the website. You will be comparing different purchases.
| Brief field | What to write | Illustrative entry |
|---|---|---|
| Buyer | Who makes the decision? | Operations managers evaluating a business service |
| Commercial goal | What useful action matters? | Relevant consultation requests, not all form submissions |
| Website task | Where is the buyer getting stuck? | The service page does not explain suitability or exclusions |
| Current evidence | What do you know rather than suspect? | Sales receives repeated questions about eligibility |
| Internal capacity | Who can supply facts, approve and implement? | A service expert can review copy; a developer handles templates |
| Constraints | What affects scope and spending? | A fixed budget and no approved website rebuild |
This is an example, not a client project. Replace the entries with your facts. A small company may need fewer tasks and a clearer handoff. A B2B company may need deeper product review. Neither label proves that a particular agency is suitable.
Build a shortlist you can verify
Find candidates through several channels, then check what each recommendation or listing really tells you.
- Peer recommendations: ask what work the provider did, who did it and whether the circumstances resemble yours.
- Published case studies: check the website, dates, starting point, reported measures and the provider’s actual role.
- Useful articles and public work: identify the author and ask who will work on your account. A good article is a useful signal, not proof that its author joins your project.
- Professional directories and reviews: check sponsorship and review context. Listing order is not an independent assessment of fit.
Keep a note of the evidence behind each candidate. “Found in a directory” and “recommended by a company with a comparable implementation problem” are different levels of information. This guide is not a verified ranking of the best agencies.
Ask questions that change the decision
| Question | A useful answer contains | A weak answer leaves out |
|---|---|---|
| What would you do first—and not do yet? | A page-level decision, its reason and a dependency | Anything beyond a standard activity list |
| Who implements the recommendation? | Named roles and the point at which your team takes over | Whether “optimization” means advice or a published change |
| How is work accepted? | Checks on facts, function and the agreed deliverable | Any standard except publication or volume |
| What access is needed? | A task-specific permission request | Why full administration is necessary |
| Who checks product claims? | An expert review route and handling of missing evidence | Responsibility for accuracy |
| What happens when the evidence contradicts the plan? | A review, an explanation and a revised priority | Anything except producing more of the same |
For a combined SEO and Google Ads purchase, check both disciplines separately. Ask for an SEO brief or implementation example and an explanation of advertising account control, media spend, management fees, landing-page ownership, conversion definitions and approval authority. SEO experience alone does not establish paid-media competence.
Compare evidence rather than promises
Use “supported,” “needs clarification” and “not suitable” rather than inventing a score out of 100. Missing evidence is an open question, not automatically proof of poor work.
| Decision field | Candidate A: illustrative entry | Candidate B: illustrative entry | Next check |
|---|---|---|---|
| Relevant work | A comparable page brief | A traffic chart only | Ask B for work attribution and context |
| Implementation | Client developer required | Specified CMS edits included | Check your developer’s capacity |
| SEO and Ads responsibilities | SEO scope clear; Ads unverified | Both scopes described | Review each channel’s evidence |
| Advertising costs and control | Media spend not separated | Media and management fees separate | Clarify A’s account access and billing |
| Landing page and conversion measurement | Owner not identified | Owner and event definition recorded | Approve the definition of a qualified action |
| Total commitment | Fee known; internal work uncosted | Fee known; extra development unknown | Resolve unknowns before choosing |
Neither fictional candidate wins on this information alone. If A’s required developer is unavailable, its proposal may be unusable. If B’s extra development is substantial, its headline fee may not describe the real commitment.
Check methods, claims and references
Ask to see a permitted work sample and the reasoning behind it. Check what the provider proposes to change, why it expects that change to help the intended reader, and how it will record the work. Treat “white hat” or “ethical” as a claim to investigate, not a substitute for methods.
Google’s hiring guidance warns against ranking guarantees and encourages buyers to examine recommendations. Advertising credentials are not a promise of organic rankings. Check the particular credential, its current status and its relevance; do not infer a special relationship with organic search.
Choose, pause or ask for more evidence
Finish with a short decision note: “We need this task; this candidate has shown this evidence; these people own implementation; this is the full expected cost; these questions remain.” Continue when the important answers are supported. Ask for clarification when the scope is usable but incomplete. Pause when nobody can implement the work or a material claim cannot be verified.
Then compare the proposals on the same basis and use the contract checklist before committing. If you are evaluating Stormy Increment, start with the listed service options, confirm the specific work and responsibilities, and apply the same questions.
Explore this topic
Use these guides to define the job, compare evidence and settle the responsibilities before committing to a supplier. You may decide to keep the work in-house or narrow the scope.
Choose the support model
Compare the work and coordination, not just the supplier label.
Specify and compare the work
Put proposed work, units, responsibility and cost on the same basis.
Control access, risk and commitment
Set practical controls and understand what the promise does not cover.
Verify fit and evidence
Ask what the case or industry claim proves—and what is still missing.
Verify a specialist scope
Inspect the method and acceptance before treating a specialist label as a complete purchase.
For related decisions and the full guide library, explore our SEO resources.
Considering outside support? SEO Services for Companies Worldwide explains the available scope and its limits.
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