Elevate your CRO with Marco Praetorius.

I help companies with conversion optimization – whether it’s getting the last 5% out or building/optimizing an experimentation program.

Boosting conversion rates through comprehensive analysis and optimization.

I optimize your website’s conversion rates through a range of data-driven services, including qualitative & quantitative analysis, customer journey analysis, UX design & usability optimisation, and development & optimisation of experimentation programmes.

Qualitative analysis: Exploring the „why“ behind user experiences for targeted optimization.

Quantitative analysis: analysing the „how much“ through measurable data for effective website optimization.

On the path to conversion, I identify optimization opportunities and ensure a seamless experience by exploring customer interactions, enhancing engagement and driving results.

Assisting you in creating visually appealing, user-friendly interfaces while enhancing usability, to improve the user experience and boost your conversion rates.

Together, we create and refine a robust experimentation strategy, using data-driven tests to continuously enhance your website and boost conversion rates.

Let's Work Together!

Partner with me to achieve your goals and bring your vision to life.

Why choose me?

Conversion Expert

Qualitative & quantitative user-centeredness since 2004


Focus on individual customer needs and close collaboration


Let's aim for your customer journey pain points and identify levers


Creativity and innovation for unique solutions and strategies.

You are in good company

Join my list of happy companies!

About me

Active in the field of qualitative and quantitative user-centeredness since 2004. Active in the field of Online Controlled Experimentation since 2013.
Experience with many different industries, from an agency perspective, in permanent positions with medium-sized companies and corporations, and from freelance work with ONLINECONVERSION.

Responsible for the experimentation programme at IU International University – Germany’s largest university with more than 100,000 students from all over the world.


Boost Conversions - Contact Me

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