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A/B testing

A/B testing: which version of your ad converts more

Without A/B testing, you're betting your business's ad budget on a hunch. A/B testing is the most reliable method for making marketing decisions based on evidence instead of intuition.

What A/B testing is and how it works

A/B testing means comparing two versions of the same element to work out which performs better using real data. Version A gets shown to part of the audience. Version B to another. After enough time, you analyse which generated better results and scale the winner.

What you can test

In Meta or Google ads:

  • The headline — a single change can double or triple your CTR.
  • The visual — image vs video, colours, format.
  • The body copy of the ad.
  • The CTA — the text on the action button.

On landing pages:

  • The main headline and the value proposition.
  • The form — length, fields, friction.
  • The CTA button — colour, text, position.

The rules of A/B testing nobody explains

  • Test one variable at a time — if you change the headline and the visual together, you won't know which one made the difference.
  • You need enough volume — a test with 50 impressions tells you nothing statistically.
  • Time matters — let the test run long enough to capture weekly behaviour swings.
  • Today's winner might not be tomorrow's — markets shift, audiences evolve.

A/B testing on landing pages — the add-on that changes your conversions

An untested landing page performs at an unknown conversion level. A tested one performs at the optimal level the data allows. The difference between a 2% and a 4% conversion rate on paid traffic can mean doubling your leads with the same budget.

As we explain in "KPIs and metrics," measuring correctly is the foundation of any smart marketing decision. A/B testing is that philosophy put into practice.

We offer A/B testing as an add-on on landing pages within web design, precisely because the impact on conversion rate more than justifies the investment.