Choosing an SEO agency is difficult because the work happens across code, content, analytics and links, while the sales conversation often reduces everything to a ranking promise. A better decision starts with what the agency can inspect, explain and deliver.
Matt has spent 15 years reviewing SEO campaigns in the real world. The consistent lesson is that a sound agency does not need to hide behind jargon. It should be able to show how the website is performing now, what is holding it back, which opportunities matter commercially and what work will happen first.
Use this guide to compare proposals on the same terms. It will not tell you that one agency model suits every business, but it will help you identify a clear plan, responsible claims and a working relationship you can hold accountable.
Define the business case before comparing agencies
An agency cannot set a useful strategy if the commercial target is vague. Traffic can rise without producing the customers your business needs. Before the first call, write down the services or products that matter, the locations you can serve, the value of a qualified enquiry and the capacity available if demand increases.
This does not require a perfect revenue model. It gives every agency the same problem to solve and makes it easier to recognise a proposal built around your business rather than a standard list of deliverables.
Priority revenue
Name the services, products or categories the campaign should support first, including any work you do not want more of.
Real service area
Separate locations you can serve profitably from places that only look attractive in a keyword tool.
Conversion capacity
Confirm how enquiries are answered, tracked and qualified so increased visibility can become an operational result.
Decision horizon
Agree how often progress will be reviewed without turning normal short-term movement into a new strategy every week.
Expect a diagnosis before a prescription
A responsible proposal should reflect the current site, search demand and competitive result set. The agency may not complete a full audit before engagement, but it should identify enough evidence to explain why its recommended scope is sensible.
Ask which constraint appears most important now. A technically blocked website needs different early work from a sound site with weak commercial pages. A local business with an incomplete Business Profile needs a different plan from a national retailer with thousands of duplicate filter URLs.
- The proposal names the website, priority services and genuine target locations.
- The agency distinguishes technical, content, local and authority constraints.
- Keyword examples are tied to a relevant page and a customer need.
- Competitor examples come from the actual search results, not only a generic industry list.
- The first priorities are explained in order rather than presented as equal monthly tasks.
- Known access, development or approval dependencies are stated before work begins.
Evaluate evidence without accepting a guarantee
Google states that third-party SEO services do not have access to its internal ranking data and cannot guarantee performance. Treat forecasts as planning assumptions, not promises. Ask what the forecast is based on and what would cause the plan to change.
Case studies are most useful when they show the starting point, dates, work completed, source data and limits. A single screenshot can prove that a metric existed, but it cannot prove that one activity caused the change or that the same result will occur for your business.
Australian businesses should also consider whether advertised claims are accurate and supported. The ACCC says claims about products and services should be truthful, based on reasonable grounds and capable of being proved.
Source
Look for Search Console, analytics, call tracking, sales records or another clearly named source rather than an unexplained dashboard number.
Period
Check the exact comparison dates and whether seasonality, a site launch or a brand campaign could affect the result.
Action
Ask what changed on the website or off it, who implemented the work and when it went live.
Outcome
Separate impressions, clicks and rankings from qualified enquiries, transactions and revenue.
Limitation
Trust evidence more when the agency explains what the data cannot establish.
Understand who does the work and how it gets published
An impressive strategy has little value if nobody owns implementation. Ask whether the agency edits the website, supplies instructions to your developer or expects your team to publish everything. Confirm who writes content, who checks technical changes and who approves work that affects legal, medical or product claims.
Also ask how senior experience reaches the account after the sale. A founder does not need to complete every task, but the agency should identify who reviews strategy, who you speak with and how decisions are escalated.
- A named person owns strategy and a named person owns day-to-day communication.
- The proposal states whether implementation is included or advisory only.
- Content has a research, business input, review and approval process.
- Technical changes are tested and have a rollback or correction path.
- Link work identifies the source and destination of every earned placement.
- The business retains access to its website, Search Console, analytics and Business Profile.
Make reporting lead to a decision
A long report is not necessarily an accountable report. A useful review shows what was completed, what changed, what the data suggests and what will happen next. Rankings matter, but they should be interpreted beside search demand, landing-page performance and business outcomes.
Request a sample report with client details removed. Ask the agency to explain one weak result as well as one strong result. This shows whether the reporting process is designed to learn or only to reassure.
Work completed
Published pages, technical changes, links and tracking work should be visible and verifiable.
Search movement
Clicks, impressions, queries, pages and position trends need consistent comparison periods and clear caveats.
Commercial movement
Where tracking allows it, reports should connect organic landing pages with qualified enquiries, transactions or revenue.
Next decision
Each report should explain what the evidence changes about the next priority.
Use the same interview questions for every shortlisted agency
A consistent question set makes proposals easier to compare. Listen for a clear answer and evidence, not only confidence. A good agency should also be willing to say when it does not know something yet and explain how it will find out.
- What do you believe is the main search constraint on our site, and what evidence supports that view?
- Which services, products and locations would you prioritise first, and why?
- What will you deliver in the first 30, 60 and 90 days?
- Who will make strategic decisions and who will complete implementation?
- Which systems and accounts will remain under our ownership?
- How do you choose link opportunities and reject poor placements?
- How will reporting separate search visibility from business outcomes?
- What could prevent this campaign from succeeding?
- What happens if the evidence contradicts the original strategy?
- How can we leave, and what work and data do we keep?
Build a decision scorecard instead of choosing the best pitch
Score each agency against the same criteria, then discuss the differences internally. Price matters, but the cheapest scope can be expensive if it avoids the work the site actually needs. Equally, a large retainer is not evidence of a better plan.
The strongest choice is usually the agency that understands the commercial goal, explains the current constraint, gives you access to the work and sets expectations you can verify.
Commercial understanding
Does the plan reflect your profitable work, service capacity and customer journey?
Quality of diagnosis
Can the agency connect its priorities to observable site and search evidence?
Delivery clarity
Are responsibilities, inclusions, dependencies and approval steps unambiguous?
Evidence quality
Are examples dated, sourced, limited appropriately and relevant to the proposed work?
Control and access
Will your business retain ownership of accounts, content, data and website access?
Working fit
Can the people involved explain difficult decisions clearly and accept informed challenge?
Sources and further reading
Primary and authoritative sources used to support the factual guidance in this resource.
- Source 01Google Search guidance on third-party SEO, opens in a new tabOfficial guidance for evaluating external SEO advice, tools and services.
- Source 02Google SEO Starter Guide, opens in a new tabGoogle's overview of common search optimisation fundamentals and limitations.
- Source 03Google Search spam policies, opens in a new tabOfficial policies covering manipulative practices, including link spam and keyword stuffing.
- Source 04ACCC guidance on false or misleading claims, opens in a new tabAustralian consumer guidance on accurate, supportable claims about products and services.