Design & UX

Conversion rate optimization (CRO)

Systematically improving a site so a larger share of visitors take a desired action, like calling or buying.

By Nick Irmo · Updated

What Conversion rate optimization (CRO) means

CRO uses analytics, user research and testing to find and fix what stops people from converting. Small improvements on key pages can add up to meaningful revenue without more traffic. It works best as an ongoing habit, not a one-time project.

Why it matters for your website

Buying more traffic gets expensive, but turning more of your existing visitors into leads makes every marketing dollar work harder. CRO finds where people get confused or drop off and fixes it. Even small improvements on key pages can add up to real revenue over time.

Example

A med spa notices most visitors leave its booking page. Session recordings show the date picker is broken on iPhones, and fixing it brings bookings back up.

Tips

  • Start with your highest-traffic pages that lead to calls, forms or sales.
  • Watch session recordings or run quick user tests to find friction.
  • Track each change so you know what made a difference.

Common mistakes

  • Copying a competitor's design without understanding your own customers.
  • Making many changes at once, then not knowing which one worked.

Questions about Conversion rate optimization (CRO)

What is Conversion rate optimization (CRO)?
Systematically improving a site so a larger share of visitors take a desired action, like calling or buying.
What is a good conversion rate for a website?
It varies widely by industry, traffic source and what counts as a conversion. Track your own baseline and aim to improve it rather than chase an average.
Where should I start with conversion rate optimization?
Make sure conversion tracking works, then look at where visitors drop off in your key paths. Fix obvious problems like slow pages, broken forms and unclear calls to action first.

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