Digital Marketing: CRO Testing
Buying more traffic is expensive. Getting more from the traffic you already have is smart. We develop hypotheses based on real user data – heatmaps, session recordings, funnel analysis – and test systematically what actually moves your conversion rate. Every test is statistically planned so results are reliable and your next feature is built on genuine evidence.
Challenges you'll recognise
- You make changes to your website but cannot prove afterwards whether they made a difference.
- Your traffic is growing but conversion rate stagnates – and you do not know where in the funnel users drop off.
- Changes are prioritised based on gut feeling rather than real user data.
Hypothesis Development
Good tests start with a clear hypothesis: which element creates friction, what change should reduce it, and what result do we expect? We derive hypotheses from user data, heatmaps and funnel analysis – not from opinions.
A/B and Multivariate Testing
We plan and run A/B tests on headlines, CTAs, forms, page layouts and checkout steps. Every test runs to statistical significance – we do not stop early because an interim result looks good. Findings are documented and accumulated.
Qualitative Methods as Complement
A/B tests tell you what converts better – but not always why. We complement quantitative tests with qualitative methods: session recordings, heatmaps and brief in-page surveys. This way we understand the cause behind the numbers.
Documentation and Knowledge Building
Every test is documented with hypothesis, methodology, result and interpretation. Over time this builds a company-specific knowledge base showing what moves your specific audience – and makes future tests more precise.
Good to know
Statistics before speed
A/B tests ended too early are one of the most common sources of error in CRO. A test must run long enough for the sample size to allow statistically significant results – otherwise you are optimising on chance.
Hypothesis before test
A test without a hypothesis is a lottery. Only when it is clear why a change should lead to a better conversion can you draw a real insight from the result – regardless of whether it wins or loses.
Accumulated knowledge beats single tests
The value of CRO grows over time: each test produces insights about your specific audience that make the next test more precise. Businesses with a long testing history have a sustained optimisation advantage.
Frequently asked questions
How much traffic does my site need for meaningful A/B tests?
Which tools do you use for CRO testing?
Does CRO testing make sense for B2B sites with few leads?
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