What Is Conversion Rate Optimisation? | Marketing Dictionary
DICTIONARY · WEB

What is conversion rate optimisation?

Improving digital experiences to increase desired actions.

In plain English

CRO is the work of getting more of the people already arriving to do what you want. Enquire, buy, book, subscribe. Same traffic, better outcome.

It is often sold as a discipline of clever tests. In practice most of the gains on small and medium sites come from removing obvious friction, clarifying the offer and fixing things nobody had watched a real visitor struggle with.

What to know

Find where people drop out
Analytics for where journeys end, session recordings and heatmaps for why. Diagnose before you change anything.
Fix the obvious first
Unclear headline, missing price context, six-field form, no visible next step. These are not test candidates, they are repairs.
Then test what is genuinely uncertain
A/B testing earns its keep on real disagreements, and only where traffic is sufficient to reach a conclusion.
Judge on the outcome you care about
A change that lifts clicks and reduces qualified enquiries is not an improvement. Measure the thing that pays.

Why it matters

Traffic is the expensive input, conversion is the multiplier on everything you already pay for. Improving conversion makes every channel more affordable at once, which is why it is usually the cheapest growth available to a business with existing traffic.

Common mistakes

×Running tests on pages that have too little traffic to conclude anything.
×Testing button colours while the offer itself is unclear.
×Optimising a form and never asking whether the enquiries got better or worse.
×Copying competitor layouts instead of diagnosing your own drop-off.

FAQs

What is a good conversion rate?

It depends entirely on the offer, the traffic source and the price point. Compare against your own baseline, not an industry average.

Do I need testing tools to start?

No. Analytics, session recordings and a careful walk through your own journey on a phone will find plenty to fix first.

WRITTEN BY TARIQ SALLAM
Marketing Consultant. Entrepreneur. Content Creator.

I'm a marketing consultant, entrepreneur and content creator. I help businesses grow through practical marketing, websites, SEO, content and AI.

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