Conversion Rate Optimisation (CRO)

What is CRO?

Conversion Rate Optimisation (CRO) is the systematic process of increasing the percentage of website visitors who complete a desired action (conversion). While SEO drives traffic to a site, CRO ensures that traffic converts into business outcomes — making CRO and SEO highly complementary disciplines.

CRO and SEO: The Relationship

• Better conversions improve SEO indirectly — pages that convert better tend to have lower bounce rates, longer dwell times, and more return visits — positive behavioural signals for Google
• Improved user experience helps both — CRO improvements like clearer CTAs, faster load times, and better content structure improve both conversions and SEO performance
• High-converting pages earn more links — genuinely useful, well-designed pages attract more backlinks organically

Key CRO Techniques

1. A/B testing — test different versions of headlines, CTAs, forms, or page layouts against each other
2. Heat mapping and session recording — tools like Hotjar show where users click, scroll, and drop off
3. Reducing friction — simplify forms, reduce required fields, remove unnecessary steps from checkout
4. Social proof — add testimonials, review counts, and customer logos near conversion points
5. Clear CTA — one primary action per page; make the CTA button visually prominent
6. Page speed — every second of delay reduces conversions; fast pages convert better
7. Trust signals — security badges, guarantee text, privacy policy links

Conversion Rate Formula

Conversion Rate = (Conversions / Total Visitors) × 100

Example:
1,000 visitors → 25 purchases
Conversion rate = (25 / 1,000) × 100 = 2.5%