Conversion optimisation : UX and A/B testing

Conversion rate optimisation, or CRO (Conversion Rate Optimisation), enables you to double your results without doubling your budget. If your website converts 1 % of its visitors and you increase this to 2 %, you’ll double your leads with the same amount of traffic. Evolurise uses behavioural data, heatmaps and A/B testing to identify and resolve every point of friction.

Our 4-step CRO method

1. Audit, Analytics and Behavioural Science, Google Analytics 4, Hotjar heatmaps, session recordings, conversion funnel analysis. Where do users drop out? Why?
2. Assumptions and prioritisation, Identification of the 10 most promising improvement hypotheses, ranked by potential impact and ease of testing.
3. Rigorous A/B testing, Statistically significant tests using Google Optimize or VWO. Minimum duration of 2 weeks per test, with a sample size sufficient to ensure statistical significance.
4. Implementation and monitoring, Roll-out of winning variants, monitoring of business metrics (not just click-through rates), monthly report.

What we optimise

• Homepages and landing pages
• Contact and quotation forms
• WooCommerce checkout processes
• Service and product pages
• CTAs and action buttons
• Loading speed (every second counts)
• Mobile experience (50 % of traffic)

FAQ, Conversion Optimisation

What is a «normal» conversion rate for a website?

It depends on the sector and the type of conversion. A B2B service website aims for 2–5 % completed forms. An average e-commerce site generates 1–3 % orders. If you’re below these benchmarks, there’s clearly room for improvement. We’ll provide you with the benchmark for your sector during the audit.

How much traffic do I need to carry out valid A/B tests?

A minimum of 1,000 visitors per month to the page being tested and 100 conversions per variant are required for 95% statistical significance. Below these thresholds, the tests take too long to be useful. We adapt our approach (multivariate testing, direct improvements) if traffic is insufficient.

By how much can we expect to improve the conversion rate?

On average, our clients see an improvement of between +20 and +40 % in their conversion rate over a six-month period of continuous CRO. In some cases, this figure reaches +80 % (sites with major UX issues). The most common quick wins include: simplifying forms, clarifying CTAs and improving mobile loading speeds.

Does optimising conversions mean we need to redesign the website?

No, in most cases. We work on the existing website, making targeted changes. Sometimes, a partial redesign of key pages (landing pages, contact pages) is recommended, but this is never our starting point.

What is the budget for a CRO project?

A CRO audit + recommendations report: €690. Monthly CRO support (testing + analysis + implementation): from €790 per month. The necessary tools (Hotjar, Google Optimize) have free versions that are sufficient to get started.