Top 15 Tips to Increasing Your On-Site Conversion Rates

On-site conversion rate optimisation is the process of improving your website so that a higher percentage of visitors take a desired action — such as making a purchase, filling in a form, or signing up to a list. Conversion rate optimisation is not a one-time fix; it is an ongoing discipline that combines design, psychology, and data to turn passive visitors into active customers. The tips below cover the most impactful changes you can make today.

Higher on-site conversion rates mean more revenue from your existing traffic. Every percentage-point improvement compounds over time, making conversion optimisation one of the highest-return activities in digital marketing.

What Are the Most Effective Ways to Increase On-Site Conversion Rates?

On-site conversion rates are directly affected by friction, trust, and clarity. Reducing form fields, adding guarantees, and placing calls to action above the fold are all proven methods for lifting conversions. The table below summarises the 15 tips covered in this guide.

How Do Form Fields and Trust Signals Affect Conversion Rates?

On-site conversion rates drop sharply when visitors encounter unnecessary friction or doubt. Two of the most powerful levers are form length and trust signals — and both are quick to address.

1. Include as Few Fields as Possible on Forms

On-site conversion rates are directly harmed by long forms. According to MarketingSherpa, one additional form field decreases conversions by 11 percent. Always ask for as little information as possible in any email or sign-up form.

• Form fields are a conversion killer — every extra field adds friction.
• Only collect data you will immediately use.
• Use progressive profiling to gather more information over time rather than upfront.

2. Add a Guarantee

Adding a guarantee to your product pages reduces perceived risk and increases on-site conversion rates. A clear refund policy signals that you stand behind your products, making customers more likely to complete a purchase.

3. Use Testimonials

Testimonials are a trust signal that increases credibility and portrays your business in a positive light. Displaying genuine customer reviews motivates visitors to invest in your brand, which leads to more conversions.

How Should Headlines and Above-the-Fold Content Be Optimised for Conversions?

On-site conversion rates are heavily influenced by what visitors see in the first few seconds. Headlines and above-the-fold elements set the tone for the entire page experience.

4. Pay Careful Attention to Your Headline

Your headline is the touchpoint of your webpage, so it needs to be compelling. Spend time brainstorming headline options and select the one that most clearly communicates the value on offer.

5. Keep Conversion Elements Above the Fold

On-site conversion rates improve when opt-in boxes and key calls to action appear above the fold — the area visible without scrolling. Above-the-fold placement has long been the standard for high-performing web design because it entices visitors to take action before they have a chance to leave.

• Place your primary CTA button in the upper half of the page.
• Ensure your value proposition is visible without scrolling.
• Test different above-the-fold layouts using A/B testing (see tip 12).

How Do Calls to Action and Product Page Features Increase Conversions?

On-site conversion rates rise when every page element serves a clear purpose. CTAs, related product recommendations, and urgency signals all work together to move visitors toward a decision.

6. Incorporate Strong Calls to Action Into Every Piece of Content

A clear call to action is an essential part of on-site conversion rate optimisation. You need to tell users exactly what to do next — whether that is filling out a form, clicking a button, or completing a purchase. CTAs are not optional; pages without a clear next step will not convert.

7. Recommend Related Products

Adding a related products section to your product pages keeps visitors on your site and supports cross-selling. This is an effective method for increasing average order value and overall on-site conversion rates.

8. Include Stock Numbers

Displaying the number of remaining items creates urgency and can lead to greater conversions. When customers see limited stock, they understand they may not have long before a product sells out, which motivates faster purchasing decisions.

How Does Page Design Influence On-Site Conversion Rates?

On-site conversion rates are not just about copywriting — page layout and user experience play an equally important role. Reducing clutter and integrating real-time support tools can significantly lift results.

9. Give Your Visitors Tunnel Vision

A clutter-free landing page focuses visitor attention on a single goal. Remove sidebars, competing CTAs, and any distractions that could divert attention away from the primary conversion action. A landing page that tries to do everything will convert nothing.

10. Use Live Chat

Integrating a live chat tool helps customers resolve concerns in real time. Live chat keeps visitors engaged, builds a stronger customer-brand relationship, and can directly drive sales by addressing objections before they cause abandonment.

What Payment and Testing Strategies Improve Conversion Rates?

On-site conversion rates at the checkout stage are influenced by payment flexibility and continuous testing. Both strategies reduce the number of visitors who abandon before completing a transaction.

11. Offer Various Payment Options

Offering multiple payment methods satisfies the preferences of a broader range of customers and decreases the chance of them clicking away at checkout. Review your target audience data to understand which payment options they prefer, then prioritise those.

12. A/B Split Testing

Running A/B split tests compares page variants against each other to collect measurable data. That data can be used to understand the impact of your changes and identify where to make further improvements. A/B testing should be applied across your entire platform — not just landing pages.

1. Identify the page element you want to test (headline, CTA colour, form length, etc.).
2. Create a variant that changes only that element.
3. Split your traffic evenly between the original and the variant.
4. Run the test until you have statistical significance.
5. Implement the winner and begin the next test.

How Do Trust, Retargeting, and Guest Checkout Lift On-Site Conversion Rates?

On-site conversion rates are also influenced by what happens after a visitor leaves and how much trust they feel while browsing. These three tactics address both.

13. Increase Trust

There are multiple ways to build trust on your website and drive conversions. Switch to HTTPS to provide a secure environment for every customer. Humanise your company by showing the real people behind the brand, and highlight your authority and credentials throughout the site.

• Display security badges and SSL certificates prominently.
• Show real team photos and company backstory.
• Highlight awards, press mentions, and industry certifications.

14. Retargeting

According to CMO.com, only 2% of online shoppers will buy an item the first time they visit a site. Setting up retargeting campaigns allows you to reach the other 98% with relevant content after they leave. Relevancy drives higher on-site conversion rates, making retargeting one of the most cost-effective ways to recover lost revenue.

15. Allow Guest Checkouts

Forcing customers to register before completing a purchase is a barrier that costs conversions. If a visitor has reached the checkout page, they are ready to buy — a mandatory registration requirement can undo that intent. Offering guest checkout keeps the process simple and removes an unnecessary obstacle.

Frequently Asked Questions About On-Site Conversion Rate Optimisation

What is a good on-site conversion rate?

On-site conversion rates vary by industry, but most ecommerce sites average between 1% and 4%. Improving your rate — even by a fraction of a percent — can have a significant impact on revenue when traffic volumes are high.

How quickly can changes to a website improve conversion rates?

Some changes, such as simplifying a form or adding a guarantee, can produce measurable results within days. More structural changes — such as redesigning a checkout flow — may take several weeks of A/B testing before a clear winner emerges.

Are testimonials still effective for increasing on-site conversion rates?

Yes. Testimonials remain one of the most reliable trust signals available. Authentic reviews from real customers reduce purchase hesitation and increase the likelihood that new visitors will convert.

What is the most common reason visitors leave without converting?

The most common reasons include a lack of trust signals, unclear calls to action, a complicated checkout process, and slow page load times. Addressing these issues is the foundation of any conversion rate optimisation strategy.

Does retargeting work for all types of businesses?

Retargeting is effective for most businesses that have measurable web traffic. It is particularly powerful for ecommerce, where the gap between first visit and purchase is common. According to CMO.com, only 2% of shoppers buy on a first visit, making retargeting essential for capturing the remaining majority.