Glossary
conversion

CRO (Conversion Rate Optimisation)

Definition

The practice of improving your website to increase the percentage of visitors who take desired actions. More conversions from the same traffic.

What is CRO?

CRO stands for Conversion Rate Optimisation. It's the systematic process of increasing the percentage of website visitors who complete desired actions – purchases, enquiries, signups, or whatever you want them to do.

Why CRO Matters

Maximise Existing Traffic

You already have visitors. CRO helps more of them convert.

Higher ROI

Improving conversion rates amplifies all your marketing investments.

Compound Effect

A 1% to 2% conversion improvement doubles your results.

Competitive Advantage

Better conversion = more efficient customer acquisition.

CRO Process

1. Research

Understand current performance. Where do visitors drop off? What's causing friction?

Methods:

  • Analytics data
  • Heatmaps and recordings
  • User surveys
  • User testing

2. Hypothesise

Based on research, develop theories about what would improve conversions.

"If we simplify the form, more people will complete it."

3. Prioritise

Score hypotheses by potential impact and effort.

4. Test

Run A/B tests or controlled experiments.

5. Analyse

Did the change improve conversions? Is it statistically significant?

6. Implement

Roll out winning changes. Document learnings.

7. Repeat

CRO is continuous improvement.

Common CRO Improvements

  • Clearer value propositions
  • Simpler navigation
  • Better calls to action
  • Shorter forms
  • Improved page speed
  • Enhanced trust signals
  • Mobile optimisation

When CRO Makes Sense

CRO requires meaningful traffic. With 100 visitors/month, you can't run valid tests.

Focus on CRO when:

  • You have consistent traffic
  • Your conversion rate has room to improve
  • You can measure conversions accurately

CRO vs Getting More Traffic

Both matter. But often, improving CRO delivers faster results than increasing traffic – and makes traffic investments more valuable.

Want to Learn More?

Check out our in-depth guides on web design, SEO, and digital marketing.