CRO is the art of extracting maximum value from existing traffic. Moving from 1% to 2% conversion doubles sales. To start: identify exit pages and funnel drop-off points in Google Analytics. Enable heatmaps and session recordings with Hotjar or Microsoft Clarity.
A/B testing is the primary CRO tool. Test one variable at a time: headline, CTA button color, number of form fields. You need enough traffic for statistical significance (at least 100 conversions per variant). For landing pages: one goal, one CTA, social proof (reviews, logos), fast loading, and mobile optimisation.
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