5 conversion rate optimisation best practices
Generate more leads with less traffic.

Your lead generation is working — traffic is coming in and leads are landing. But traffic alone doesn't pay the bills. You need traffic and leads that convert; anything less is budget quietly burning. And the gap is bigger than most owners think: the average landing page converts at just 2.35%, while the best pages convert at 5.31% or more. That difference is rarely about more traffic — it's about making the traffic you already have count.

What is conversion rate optimisation?

Conversion rate optimisation (CRO) is the practice of increasing the percentage of visitors who take a desired action — buying a product, adding to cart, booking a call, or filling out a form. Done well, it produces three things at once: more qualified leads, more revenue, and a lower cost to acquire each customer.

Why CRO matters

CRO doesn't just lift sales — it compounds across your whole funnel. It teaches you more about your audience, because heat maps and session recordings show how people actually behave rather than how you assume they do. It boosts sales from the same traffic — small changes to visuals, copy and form length add up to real revenue. It lowers your customer acquisition cost, so every marketing pound returns more. And it strengthens your SEO, because the things that lift conversions — fast pages, clean structure, mobile-friendly content, genuine engagement — are the same signals search engines reward.

5 conversion rate optimisation best practices

1. Design a focused landing page

Your landing page is the first thing a visitor sees after your ad, and it carries the whole conversion. Look at it the way a first-time visitor would: don't overwhelm them with information, lead with a concise, user-oriented headline, balance images, video and text, and keep it fast — if the page takes more than four or five seconds to load, you're losing people before they read a word. The pages that win are the simple ones: a clear headline, clean visuals, and short paragraphs that spell out the benefit.

2. Get your lead-gen forms right

Forms are the most common source of friction on a landing page, so they're the obvious place to start. Five fields or fewer is a safe default — less time, less effort, less drop-off. But shorter isn't universally better: some high-intent audiences expect and even want more fields, and the extra questions can qualify the lead. The honest answer to “do fewer fields convert better?” is yes and no — which is exactly why you test it.

3. Take your CTAs to the next level

A weak call to action leaves prospects wondering why they're handing over their details at all. A strong one makes the value obvious. Beyond persuasive language, anchor the CTA in the benefit the visitor walks away with: “Get my free audit” beats “Submit” because it says what happens next and what they get. The more clearly the button spells out the gain, the more people click it.

4. Increase conversions with social proof

Trust is what turns interest into action — and social proof can lift conversions by as much as 34%. Put the evidence where the decision happens: customer testimonials, reviews, case studies, certifications and accreditations, recognisable client logos, and industry awards. The strongest pages stack several of these near the CTA so the visitor's last impression before clicking is “people like me trusted this.”

5. Keep testing

The last best practice is the one that makes the other four work: never stop testing. Every element — headline, form, CTA, layout, proof — should be tested regularly, because the first version of anything is rarely the best. A/B test one change at a time, keep what wins, and treat your conversion rate as something you improve continuously, not something you set once.

Ready to improve your conversion rate?

There are far more CRO best practices than five, and you don't need to apply them all at once. You wouldn't “try SEO” on one keyword for a month and quit — CRO is the same. Put these basics in place, keep testing, and the small improvements compound into a conversion rate that climbs quarter after quarter.

Frequently asked questions