In short: look for relevant experience you can verify, a consultant who diagnoses before prescribing, plain communication, and honesty about what SEO can and cannot do. Walk away from anyone who guarantees rankings, sells a secret method, or cannot explain how they will measure results.

Key takeaways

  • A good SEO consultant has relevant, verifiable experience and diagnoses before prescribing.
  • Strong consultants cover technical, on-page and off-page SEO and take a measured view of AI search.
  • Guaranteed rankings or AI citations, secret methods and pressure to sign early are red flags.
  • Good SEO work is tied to business outcomes such as leads and sales, not rankings alone.

Anyone can set up a website and call themselves an SEO expert. The work is hard to judge from the outside, results take months, and the vocabulary is easy to fake. That makes choosing the right consultant one of the more consequential marketing decisions a business makes.

I first wrote a version of this list in 2020. The fundamentals have not changed much, but AI search has added a new layer of claims to test. Here is what I would check today.

Experience and evidence

1. Relevant experience, not just years

Years in the industry matter less than range. Someone with a decade of local service sites may struggle with a 40,000-page ecommerce catalog, and the reverse is also true. Ask what kinds of sites they have worked on that look like yours.

2. References you can actually contact

Testimonials on a website are curated. A consultant with a solid track record should be willing to connect you with one or two past clients.

3. Case examples with context

Good examples explain the starting point, what was done, what changed and over what period. Traffic charts with no context tell you very little.

4. A grasp of all three layers of SEO

SEO has a technical layer (can search engines crawl and index the site?), an on-page layer (does each page clearly answer what people search for?) and an off-page layer (do credible sources reference you?). A consultant who only talks about one of these will leave gaps.

Ask how they approach visibility in ChatGPT, Perplexity, Gemini and Google’s AI Overviews. A good answer covers how they measure it and what signals they work on. A weak answer promises placement.

How they work

6. Diagnosis before prescription

The right consultant asks questions and looks at your data before recommending anything. A fixed package offered on the first call is a template, not a strategy.

7. Transparency about tools and data

They should be able to tell you which tools they use, such as Google Search Console, GA4 and a site crawler, and what each one is for. They should also be clear about what access they need from you.

8. Plain communication

You should understand what they are recommending and why. Jargon is sometimes unavoidable, but a consultant who cannot explain their work simply may not understand it well.

9. Clarity about who does the work

Find out whether the person you meet is the person doing the analysis, or whether the work is passed to someone more junior.

10. Fit with your team

SEO changes usually need developers, writers and decision makers. Ask how they work with in-house teams and how they handle recommendations that are not implemented.

Honesty and integrity

11. No ranking or AI citation guarantees

No one controls how Google ranks pages or what an AI model chooses to cite. A guarantee means the consultant is either guessing or planning to hit a target that does not matter to your business.

12. No secret methods

SEO is a well-researched field, and the techniques that work are known to every competent practitioner. What separates good consultants is judgment and execution, not secrets.

13. Methods that follow search engine guidelines

Ask directly how they build links and authority. Paid link networks and automated outreach can deliver short-term gains followed by long-term damage.

14. Clear scope, pricing and terms in writing

You should know exactly what is included, what is not, how long the engagement runs and how either side can end it. For larger engagements, it is reasonable to ask whether they carry professional liability insurance.

15. A focus on business outcomes

Rankings and traffic are means, not ends. A good consultant ties the work to leads, sales or whatever your business actually measures, and reports on those.

What should you ask on the first call?

  • What would you look at first on our site, and why?
  • Can you walk me through a similar project, including what did not work?
  • How will you measure progress in the first three months?
  • What will you need from our team?
  • How do you approach visibility in AI search tools?

What are the red flags?

  • Guaranteed first-page rankings or guaranteed AI citations
  • A secret or proprietary method they will not explain
  • Prices far below the market for the scope described
  • Reporting that focuses on rankings for terms nobody searches
  • Pressure to sign a long contract before any diagnosis

The right consultant should make your decisions clearer, not more confusing. If you leave the first conversation understanding your site better than when you started, that is a good sign.