Conversion rate: what to measure before a redesign

Conversion rate shows what proportion of visitors complete the target action: send an enquiry, call, subscribe or buy. The number is not useful if you do not know who visits the site, which page they see, which action matters and whether the event is measured correctly.

Define the conversion before drawing conclusions

For a service website, the conversion may be a valid enquiry, not every form submission. For an online store, it may be a paid order, not only an add-to-cart event. If the definition is vague, optimisation becomes opinion.

What to check before redesign

• relevant traffic versus accidental traffic;
• the hero message and visible offer;
• page clarity on mobile;
• the form, error messages and submission confirmation;
• GA4/GTM events and Ads conversions;
• pages with abandonment or a blocked step.

Not every conversion issue requires redesign

If the page has a good offer but the form fails, the fix is technical. If people arrive from the wrong searches, the issue is SEO or Ads. If the page does not explain the benefit and next step, the solution may be rewriting key sections.

When testing makes sense

A/B testing is useful when there is enough traffic and a clear hypothesis. For small sites, qualitative review, fixing obvious friction and monitoring real enquiries are often more useful. Do not use universal benchmarks without context.

The next step

For pages with traffic, start with CRO and UX. For measurement and reporting, see analytics and business intelligence. For rebuilding, see website design and redesign.