---
title: What Is Conversion Rate Optimisation (CRO)? | WebManics
description: Conversion rate optimisation (CRO) means getting more of your existing visitors to call, book or enquire. What it is, how it works and where to start.
---

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5. Conversion rate optimisation (…

# Conversion rate optimisation (CRO)

**Conversion rate optimisation (CRO)** is the process of getting more of the people who already visit your website to take a valuable action, such as calling, booking, buying or sending an enquiry. Instead of paying for more traffic, you find and fix what stops your current visitors from getting in touch.

- [CRO Fundamentals](https://webmanics.com/glossary/tag/cro-fundamentals)

Updated 8 November 2026 • 3 min read

On this page

[All glossary terms A–Z](https://webmanics.com/glossary)

## CRO in plain English

Imagine 1,000 people visit your website this month and 10 of them enquire. That is a 1% [conversion rate](https://webmanics.com/glossary/conversion-rate). You could try to double your enquiries by doubling your traffic, which usually means doubling your ad spend or SEO effort. Or you could make the site better at turning visitors into enquiries, so the same 1,000 visitors produce 20 enquiries. That second route is CRO.

A "conversion" is whatever action matters to your business. For a clinic it might be a booked appointment. For a consultancy it might be a contact form. For a dance school it might be a trial class sign-up. Smaller actions along the way, such as clicking a phone number or starting a form, are called micro-conversions.

## Why CRO matters for businesses that run on enquiries

- **It makes every other channel work harder.** Better conversion lifts the return on SEO, ads, social and referrals at the same time.
- **It fixes problems you cannot see.** Visitors rarely tell you why they left. CRO finds out.
- **It compounds.** A clearer page keeps working every month after it is fixed.

## How CRO works, step by step

1. **Measure.** Set up tracking so every form, call click and booking is counted with its source. Without this, you are guessing.
2. **Diagnose.** Use analytics, [heatmaps](https://webmanics.com/glossary/heatmap) and session recordings to see where visitors drop out of your [conversion funnel](https://webmanics.com/glossary/conversion-funnel).
3. **Understand why.** Common reasons include an unclear [value proposition](https://webmanics.com/glossary/value-proposition), missing [social proof](https://webmanics.com/glossary/social-proof), slow mobile pages, long forms and a weak [call to action](https://webmanics.com/glossary/call-to-action).
4. **Prioritise.** Rank fixes by likely impact and effort, and tackle the biggest leaks first.
5. **Change and test.** Make the change. Where traffic allows, prove it with an [A/B test](https://webmanics.com/glossary/ab-testing). Where it does not, compare results before and after.
6. **Repeat.** CRO is an ongoing cycle, not a one-off project.

## What CRO is not

- **Not just button colours.** The biggest gains usually come from clearer messaging, better offers and stronger proof.
- **Not only for big websites.** Smaller sites cannot always run A/B tests, but they can still fix obvious friction and measure the results.
- **Not a replacement for SEO.** SEO brings people in. CRO makes sure they act once they arrive. The two work best together.

## A simple example

A local clinic gets plenty of visitors to its treatment pages but few bookings. Heatmaps show most mobile visitors never scroll past the opening image, and the booking button is at the bottom of a long page. Moving a clear "Book an appointment" button and the clinic's review rating to the top of the page, and cutting the booking form from nine fields to four, gives visitors what they need sooner. That is CRO in practice.

## Related terms

- [Conversion rate](https://webmanics.com/glossary/conversion-rate)
- [Conversion funnel](https://webmanics.com/glossary/conversion-funnel)
- [Customer journey](https://webmanics.com/glossary/customer-journey)
- [Landing page](https://webmanics.com/glossary/landing-page)
- [A/B testing](https://webmanics.com/glossary/ab-testing)

## How WebManics can help

CRO is our core specialism. We start with a [free website conversion audit](https://webmanics.com/website-conversion-audit) that shows what is holding enquiries back and what to fix first. If your site needs ongoing improvement, our [CRO Growth Retainer](https://webmanics.com/services/cro-growth-retainer) makes and measures changes every month. If the platform itself is the problem, we design and build a [new website around conversion from day one](https://webmanics.com/services/conversion-optimised-website-build).

## Want more enquiries from your website?

Get a free website conversion audit. We’ll show you what’s stopping visitors from getting in touch, and what to fix first. No obligation.

[![Request a free audit](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/143736829/interactive-87103837382.png)](https://webmanics.com/hs/cta/wi/redirect?encryptedPayload=AVxigLLsC%2Fzz5ZIdca5NQJCwIh%2FrFy0ZLd60m%2FZDD9QL53sqbFY4MLcTJECNcoG3ovN%2FQ94r%2BbRxLmW0Kq2%2FqfzNnT0HE7K6SDln4myhRZv6UbjLI6Bf0cmlSPRs7%2FWLEhZQgyWbvyw0Tx%2BVsSp6Vxa15YmW8jzl9PGyk%2FD96W9%2FlLAdlHSAmrfIehoU2XcPvYnR4UFs7YlULBwqmocFwjakL8%2BI3yBGyQ5X6WKJ0GhNu5TAflw%3D&webInteractiveContentId=87103837382&portalId=143736829)

## More definitions

[Browse all terms A–Z](https://webmanics.com/glossary)

### [Social proof Social proof is evidence that other people already trust, use or recommend you, such as reviews, star ratings, testimoni... Read definition](https://webmanics.com/glossary/social-proof)

### [Call to action (CTA) A call to action (CTA) is a prompt that tells a website visitor what to do next, such as "Book a free consultation", "Ge... Read definition](https://webmanics.com/glossary/call-to-action)

### [Conversion rate Conversion rate is the percentage of website visitors who take a specific action you want them to take, such as sending ... Read definition](https://webmanics.com/glossary/conversion-rate)

## Clarity first.   Conversion next.

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