The process of turning more visitors into customers by boosting engagement and increasing online conversions.
Conversion Rate Optimisation (CRO) helps us turn more website visitors into customers through user-focused improvements. We analyse user behaviour, identify barriers, and design solutions that improve engagement, streamline user journeys, and drive measurable increases in conversions and online revenue.
What is CRO and why does it matter?
CRO is the process of improving your website to increase the percentage of visitors who complete a desired action, such as making a purchase, filling out a form, or subscribing to your newsletter. The goal is to enhance the user experience by removing any barriers in the conversion process, ensuring that more of your site visitors take the actions you want.
Driving traffic to your site is just the beginning. If your visitors aren't taking action, you're leaving revenue on the table.
There are two main ways to grow your online revenue, form completions or newsletter sign-ups: increase the number of visitors to your website, or improve the rate at which those visitors convert. Driving more traffic can work, but it’s often costly and competitive, especially if you're relying heavily on paid ads.
The more sustainable alternative is to focus on CRO. Instead of chasing more clicks, CRO helps you make the most of the traffic you already have by improving your website’s performance. By removing barriers, enhancing user experience, and removing pain points, CRO increases the percentage of visitors who take action, ultimately boosting revenue without increasing your marketing efforts and spend.
Don't fall into the never-ending circle of unlimited expenditure for traffic, without also considering CRO. The best strategy is to come at the problem from both angles. The difference with CRO, is that it can compound results. Adding small improvements on top of each other to make big improvements. Improvements that last!
“We don’t just guess what works - we test it, and then we re-iterate. By using data and user insight, it gives us an important guide that is integral to every design decision that we make.”
Scott Andrews - Lead Designer
Our Methodology
Our approach to CRO is structured around in-depth research, experimentation, and a focus on continuous improvement. Every design decision is backed by data and validated through a process of prototyping and user-testing.
We begin by understanding your users. Through research, including user testing, analytics reviews, session recordings and market analysis. This is followed by ideation and concept development, where we explore potential solutions to usability challenges and conversion barriers. Using prototyping and iterative testing, we refine these ideas to ensure they’re not just creative - but effective.

“We are thrilled with the transformation of our website. The new website significantly enhanced the user experience and lead to a huge increase in subscriptions and online revenue. Castus took the time to really understand our brand, our products, and our goals. The results speak for themselves.”
Kathryn - The Founder of Rejuvenated
Related Work
These case studies show the projects that relate to this service. We cannot always show all of the detail for a project due to client sensitivies. Please give us a call if you would like to discuss our projects in more detail.