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Why conversion rate optimisation matters more than ever

Anna Appleton-Claydon

By Anna Appleton-Claydon

27th Nov 2025

UX

Most websites don’t need more traffic, they need better performance from the traffic they already have. Conversion rate optimisation focuses on removing friction and improving the steps that lead to real results.

Why conversion rate optimisation matters more than ever

Most websites don’t have a traffic problem. They have a conversion problem. Companies spend heavily on SEO, ads, and content, but ignore the part that actually turns visitors into customers. This is where conversion rate optimisation (CRO) makes the difference.

CRO focuses on improving the actions that matter: purchases, enquiries, sign-ups, downloads. Small gains compound into significant revenue without increasing traffic or ad spend.

What CRO actually does

The reality is that CRO can have a huge impact, maximising the value of any other campaigns and work you might be doing. It:

  • Reduces friction for users
  • Identifies what stops people from converting
  • Improves clarity, trust, and relevance
  • Tests variations so decisions rely on data, not assumptions
  • Increases revenue from the traffic you already have

Why CRO is so important

1. It increases revenue without increasing spend

Improving conversion rates means you get more value from the visitors already landing on your site. You reduce wasted ad spend and extract more profit from the same marketing investment.

2. It improves user experience

Most CRO wins come from removing confusion and making journeys smoother. Better usability leads to happier customers, stronger brand perception, and repeat business.

3. It reduces acquisition costs

When more visitors convert, your cost per acquisition drops. This gives you more financial room to scale marketing safely.

4. It turns opinions into data

Teams often rely on guesswork because internal biases are strong. CRO replaces that with evidence from real users so decisions become clearer and less emotional.

5. It exposes hidden issues

Heatmaps, session recordings, focus groups and data analysis often reveal broken forms, poor messaging, unclear layouts, and unexpected drop-offs. Fixing these issues can deliver immediate wins.

What gets tested in CRO

CRO focuses on the parts of your site that influence how easily someone can understand, trust, and act on what you offer. The aim is to identify friction, barriers and confusion and improve the steps that matter most to conversions.

  • Messaging and value propositions
  • Page layout and hierarchy
  • Accessibility
  • Calls to action
  • Form length and structure
  • Page speed and performance
  • Checkout experiences
  • Trust signals like reviews and guarantees

The impact adds up

A series of small uplift tests might look modest:

  • 1% on a form
  • 2% on a checkout step
  • 1.5% on a call to action

While increasing a conversion rate from 3 percent to 4 percent is only a 1% absolute increase, it represents a 33% relative improvement. That kind of gain, applied consistently across a year, can have a transformative effect on revenue.

Why businesses overlook CRO

Businesses often overlook or even avoid CRO because they assume it is only relevant for larger companies and instead they focus too heavily on increasing traffic rather than improving outcomes. Decisions are often driven by intuition or design preferences instead of data, and teams underestimate how much hidden friction exists in user journeys. Many also treat their website as a static asset rather than something that needs to evolve. In reality, CRO is an ongoing process because markets change, user expectations shift, and competitors continue to improve. Continuous optimisation prevents performance from slowly declining over time.

In summary

CRO is an incredibly cost-effective way to increase revenue. It strengthens your marketing, reduces waste, and gives users a better experience. Investing in CRO means you stop guessing and start growing based on evidence.

Want to find out more?

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