Intelligent Execution

Conversion Rate Optimisation Agencies: How to Compare Them

Proposals from conversion rate optimisation agencies tend to read alike: audits, testing roadmaps, monthly reports and a retainer.

The differences that decide value sit underneath, in how each agency diagnoses a problem, how it reports a losing test and who keeps the evidence when the contract ends.

Choosing on presentation risks paying for months of test volume that leaves little behind to learn from.

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Questions that separate one proposal from another

Diagnosis: How will the agency establish why buyers hesitate before suggesting what to change?
Hypotheses: Is each test tied to a written reason, or chosen from a list of common page changes?
Statistical standards: What sample size, test duration and stopping rule will be used, and who decides when a result counts?
Losing tests: Are failed tests reported with the same detail as winners?
Ownership: Do test records, recordings and research stay with you after the engagement?

Evidence worth requesting before signing

A sample test record shows more than a case study. It reveals the hypothesis, the measurement and how the agency explained a result that went against it.

References from clients whose traffic and sales cycle resemble yours carry more weight than headline uplift figures.

Agency, consultant or audit

The engagement model matters as much as the provider.

Full-service agency

Research, design, build and testing delivered together. Suits teams without spare design or development time.

Conversion rate optimisation agency

Consultant

Direction and review for a team that builds its own changes.

Conversion rate optimisation consultant

One-off audit

A diagnosis before any commitment to a programme.

Conversion funnel audit

Contract terms that protect the budget

Short initial terms with a defined diagnostic phase allow a programme to be judged before it is extended.

Success measures should be commercial, such as completed orders or qualified enquiries, and agreed in writing before work starts.

Where this practice sits among UK providers

SilentVision's conversion rate optimisation agency service begins with buyer research and behavioural diagnosis, and every test result, including losses, stays with the client.

The questions above apply equally to us, and we would rather be compared on them than on claims.

Questions about choosing a CRO provider

How many conversion rate optimisation companies should be shortlisted?

Enough to compare methods in detail. A shortlist small enough to read every proposal properly usually serves better than a long one.

Are published rankings reliable?

Rankings often reflect who submitted, paid or was nominated. Your own questions about method and evidence give a fairer comparison.

Compare our method against your shortlist

Bring the proposals you are weighing. We will go through the questions above with you, including the ones about us.