Hiring an SEO Agency · Vetting and Hiring · 23

How to Check an SEO Agency Track Record

Anyone can claim results, so the evidence behind the claim is what matters. A real track record is easy to show and quick to check once you know where to look. Here is how to weigh case studies, reviews, references and an agency's own visibility before you trust them with your site.

Updated: May 2026
Written by: Andrew Odgers, MD
Guide: 23 of 34
Quick answer

To check an agency track record, look at their case studies, client reviews, references you can contact and their own search visibility. Look for honest detail and examples relevant to your business rather than only headline wins. Be cautious if an agency cannot show any evidence at all, since a genuine track record is easy to share. How readily they offer proof tells you almost as much as the proof itself.

Proof, not promises

Checking the
track record

Evidence is easy to gather once you know what counts. These three numbers frame the check.

3

Kinds of proof

Case studies, reviews and references, the three pieces of evidence to seek.

0

Excuses to accept

A confident agency can always show some genuine evidence of its work.

1

Relevant example

One result from a business like yours beats ten from unrelated sectors.

The full answer

Where to find the evidence

Claims are cheap in SEO. A track record is the antidote, since it shows what an agency has actually done rather than what it promises to do. The good news is that real evidence is easy to find when you know the four places to look and how to read each one honestly.

Why a track record matters

SEO is hard to judge from a sales call alone. A track record gives you something concrete: proof that the agency has produced results for businesses like yours before. It also reveals how the agency talks about its work, which is a quiet signal of honesty. An agency happy to show its history is usually one with a history worth showing.

Case studies and how to read them

Start with case studies. A strong one shows where the client began, what the agency did and the results over time, ideally tied to real business outcomes. Read past the headline number. A modest, well-explained result for a business like yours is far more reassuring than a dramatic figure with no context. Vague before-and-after screenshots prove very little on their own.

Reviews and reputation

Next, look at independent reviews and the agency reputation more broadly. Google reviews, third-party platforms and even a quick search of the agency name can be revealing. Look for patterns rather than single comments. A run of reviews praising clear communication and steady results says more than one glowing testimonial on the agency own site.

References you can contact

Where you can, ask to speak to a current or past client. A short conversation tells you things a case study cannot: how the agency communicates, how it handles problems and whether the relationship felt fair. A confident agency will happily arrange this. Some caution around naming sensitive clients is reasonable, though a flat refusal to provide any reference is worth noting.

Their own search presence

Finally, see how the agency performs in search itself. An agency that ranks for competitive SEO terms clearly knows the craft. Treat this as a useful signal rather than the whole answer, since some excellent agencies are busy on client work rather than their own rankings. Weigh it alongside the other evidence rather than on its own.

Reading the evidence honestly

Pull the threads together and a clear picture forms. You are looking for honest, relevant, consistent proof rather than one dazzling claim. Be most reassured by detail and relevance. Be most cautious when an agency cannot show anything at all. The panel below sets out the evidence to gather and what good looks like for each.

Three kinds of proof

What the evidence
should show

01 · Case studies

Real results with detail

Where a client started, what was done and the outcome over time. Honest context matters far more than a single dramatic number.

02 · Voices

Reviews and references

What other clients say, in reviews and in person. Patterns of clear communication and steady results are the signal to look for.

03 · Their own SEO

Do they rank themselves

How the agency performs in search for its own terms. A useful signal of craft, though not the whole story on its own.

The evidence to gather

How to check a
track record

Five things to look for, with what good looks like for each.

Checking an agency track record
Evidence Checklist
Relevant case studies
Real detail and a starting point, ideally for a business like yours.
Independent reviews
Patterns across Google and third-party sites, not one testimonial.
Contactable references
A current or past client you can actually speak to.
Their own visibility
How the agency ranks for competitive SEO terms itself.
Honest framing
Results explained with context rather than a lone dramatic figure.
How readily they share is itself evidence. A genuine track record is easy to show. Reluctance, vagueness or nothing at all should make you slow down before trusting an agency with your site.
Ask directly

Four questions about
the track record

If the evidence is not on the website, simply ask. These four questions get you to the truth quickly.

Relevant case studies?Can you show results for a business similar to mine?
Can I speak to a client?Is there a current or past client willing to act as a reference?
What about clients who left?How does the agency talk about relationships that ended?
Do you rank yourselves?How does the agency perform for its own competitive terms?
Proof vs claims

Real proof
vs hollow claims

A track record either holds up under a little scrutiny or it does not. Here is the difference.

Real proof

Detailed and checkable

  • Case studies with context and detail
  • Consistent independent reviews
  • References you can speak to
  • Examples relevant to your sector
  • Happy to share when asked
Hollow claims

Vague and unverifiable

  • Big numbers with no context
  • A single testimonial and little else
  • No reference ever available
  • Only unrelated or unnamed examples
  • Evasive when asked for proof
In context: This is guide 23 of 34, in our Vetting and Hiring theme.
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Proof on request

A track record
we will show you.

Ask us for relevant examples, reviews or a client to speak to and we will share them gladly. Real work stands up to a look. Free quote today, from £350 per month.

Frequently asked

Track records

How do I check an SEO agency track record?
Look at their case studies, client reviews, references you can actually contact and their own search visibility. Seek honest detail and examples relevant to your business rather than only headline wins. Be cautious if an agency cannot show any evidence at all, because a genuine track record is easy to share. How readily they offer proof tells you a great deal.
What should I look for in SEO case studies?
Look for context and honesty, not just a big number. A useful case study shows where the client started, what the agency actually did, the results over time and ideally the business outcome. Examples from businesses similar to yours matter more than dramatic results in unrelated sectors, since they show the agency can do the work you need.
Should I ask an SEO agency for references?
Yes. A confident agency will happily put you in touch with current or past clients, ideally in a similar field. A short conversation with a real client reveals how the agency communicates, reports and behaves over time. Reluctance to provide any reference at all is worth noting, though some sensitivity around named clients can be reasonable.
Should an SEO agency rank for its own keywords?
It is a fair signal, though not the whole story. An agency that ranks well for competitive SEO terms clearly knows the craft. That said, some excellent agencies are busy serving clients rather than chasing their own rankings, so weigh it alongside case studies, reviews and references rather than treating it as the only test.