CRO & Experimentation

10 Best Practices for Conversion Rate Optimization (CRO)

Explore 10 CRO best practices to optimize your e-commerce site, improve user experience, and boost conversions across touchpoints like checkout, PDPs, and cart.

Gaurav Rawat

Sep 18, 2025

10 Best Practices for Conversion Rate Optimization (CRO)
10 Best Practices for Conversion Rate Optimization (CRO)

Conversion Rate Optimization (CRO) is crucial for turning visitors into customers. At its core, CRO focuses on improving the conversion rate, defined as the percentage of visitors who take a desired action, such as making a purchase, signing up for a newsletter, or downloading an app. 

For e-commerce and DTC brands, applying CRO best practices across touchpoints like homepages, PDPs, PLPs, carts, and checkout creates personalized shopping experiences. By analyzing past shopper behavior, such as browsing, cart actions, and purchase patterns, brands can deliver tailored content and offers.

This article will explore the essential CRO best practices that e-commerce brands can apply to their websites and apps, ensuring they optimize every stage of the shopping journey, from first touch to checkout.

Key Takeaways

  • Simplify checkout to reduce abandonment and improve conversions.

  • Display trust signals like secure payment icons and reviews to build confidence.

  • Optimize for mobile with responsive design and fast load times.

  • To increase the appeal of your products, use high-quality photos and videos.

  • Use customized offers and recommendations to make the shopping experience more unique.

What is Conversion Rate Optimization (CRO)?

Conversion Rate Optimization (CRO) is the systematic process of improving the percentage of visitors to a website or app who complete a desired action. The goal of CRO is to enhance the user experience and simplify the process of guiding customers through the sales funnel, all while maximizing the value of existing traffic.

In e-commerce, CRO involves a wide range of strategies, from optimizing landing pages and product detail pages (PDPs) to personalizing the checkout process. The key to successful CRO is understanding how visitors interact with your site and identifying areas where they may be dropping off.

Transform your landing pages, PDPs, and shopping carts with AI-powered Nudge’s Commerce Surfaces. Dynamically personalize the experience across the funnel to engage each shopper and drive higher conversions. Continuously test and optimize to ensure maximum performance at every touchpoint.

What is Conversion Rate Optimization (CRO)?

Next, let's look at how you can calculate your conversion rate to measure your CRO success.

How to Calculate Your Conversion Rate in E-commerce?

Calculating your conversion rate is straightforward: divide the total number of conversions (purchases, sign-ups, etc.) by the total number of website visitors, then multiply the result by 100 to get a percentage. The formula is as follows:

Formula for conversion rate: Number of Conversions divided by Total Visitors, then multiplied by 100.

For instance, your conversion rate would be 5% if 10,000 people visited your website and 500 of them converted. Tracking your conversion rate regularly helps you measure the effectiveness of your CRO efforts and identify areas that need improvement.

Also Read: CRO A/B Testing Frameworks That Actually Work

With that in mind, let’s examine what the average conversion rate is in e-commerce.

What is the Average Conversion Rate in E-commerce?

The average conversion rate in e-commerce can vary widely based on the industry, type of product, and the quality of the website. On average, the conversion rate for most e-commerce websites is between 2.5% and 3%. However, some highly optimized sites or those in specific niches can see conversion rates as high as 5% or more. 

Nudge engages customers with real-time, behavior-driven Contextual Nudges such as urgency popups, personalized offers, and seasonal promos. Trigger these messages based on actions like exit intent, scroll depth, or time on page to increase conversions and reduce drop-offs.

CTA promoting user recovery, re-engagement, and conversion with a button to explore contextual nudges and shopping app features.

Now that we have an understanding of CRO, let’s look into the 10 best practices that can help you implement an effective CRO strategy.

10 Best Practices for Conversion Rate Optimization (CRO)

Diagram titled "Best Practices for CRO" with 10 branches listing: optimize checkout, add trust signals, display reviews, mobile optimization, and more.

Applying CRO best practices across core touchpoints like homepages, PDPs, shopping carts, and checkout can significantly improve user experience and boost conversions. Here's a breakdown of the CRO best practices that can help maximize revenue.

1. Optimize Your E-Commerce Checkout Process

Incorporating AI-powered checkout forms that pre-fill information based on past shopper behavior or saved details ensures a smoother experience. Simplifying the checkout process is critical to reducing cart abandonment. For e-commerce sites, this means simplifying the checkout form, minimizing steps, and offering multiple payment options.

Promotional message urging customers to complete their cart purchase for 15% off.

2. Add Trust Signals

Trust signals are essential for reassuring customers that their personal and payment information is safe. For e-commerce brands, displaying SSL certificates, secure payment icons, and trusted brand logos on product pages and checkout forms helps build credibility. Trust badges, return policies, and customer testimonials displayed on PDPs and landing pages further build consumer confidence, encouraging more conversions.

Use Nudge to deliver a tailored shopping journey at every stage, from landing pages to checkout. Personalized content, smart recommendations, and relevant offers keep shoppers engaged and guide them toward completing their purchases.

Light blue CTA banner with text promoting Nudge's services: "See how Nudge turns clicks into conversions. Book a demo."

3. Clearly Display Product Reviews

Product reviews act as social proof and influence purchasing decisions. By prominently displaying user reviews and ratings on PDPs, shoppers can confidently move forward with their purchase. Use AI-driven recommendation tools that highlight relevant products based on customer reviews, past behavior, or browsing history.

4. Optimize Websites for Mobile Users

With mobile commerce growing rapidly, ensuring your e-commerce site is mobile-optimized is a must. The key is a responsive design that adjusts to different screen sizes. Implementing AI-driven features like funnel personalization, tailored recommendations, and easy navigation for mobile users makes the shopping experience.

Fashion ad featuring a plaid shirt and jeans with 30% off, star ratings, and social media icons for Google, TikTok, and Facebook.

5. Improve Product Photography

Product images are a key factor in driving conversions, as customers cannot physically touch the products online. High-quality, clear images that show multiple angles and allow zoom functionality improve the shopping experience. Additionally, shoppable videos and interactive features can further engage users and increase conversion rates by making products feel more tangible.

6. The Checkout Form Should be Simple to Use

A complex checkout form leads to cart abandonment. Simplify the form by labeling required and optional fields clearly, reducing the number of steps, and using autofill to speed up the process. AI can help personalize the form experience, automatically filling in details for returning customers.

Also Read: How to Enhance CRO Through Effective UX Design

7. Always Mark the Required and Optional Checkout Fields

Clear labeling of required and optional fields during the checkout process can prevent confusion and frustration. Visual cues like asterisks or color coding can help users quickly identify what’s necessary. Using CRO best practices like these ensures a smoother user experience and increases the chances of cart completion.

8. Use Caution When Adding a Live Chat Feature

Live chat can improve customer service, but it must be implemented without disrupting the user journey. E-commerce brands should use AI-driven live chat tools that are available during business hours, offering real-time support. For after-hours inquiries, AI chatbots can handle common questions or redirect customers to relevant resources, ensuring that visitors receive prompt assistance.

9. Websites Should Be Easy to Navigate

E-commerce websites should have intuitive navigation, clear product categories, and a reliable search function. AI-powered personalization can adjust the website layout and content based on past shopper behavior, making it easier for customers to find products they’re interested in. A well-organized website helps customers feel confident in their choices, which directly impacts conversions.

Nudge offers dynamic, personalized AI product recommendations based on shopper behavior and affinities. Tailor upsell bundles and product suggestions across PDPs, carts, and checkout to align with each customer's intent and purchase history, increasing conversion potential.

Banner promoting intent-driven recommendations to boost AOV, featuring product offers for sunglasses and a shirt with discounts and a CTA button.

10. Improve Mobile Payment

As mobile commerce increases, offering mobile payment options like Apple Pay, Google Pay, or PayPal is essential. E-commerce sites should make the mobile payment process as smooth as possible, reducing steps and ensuring security. Offering real-time, AI-powered payment suggestions based on past purchases or category affinities can increase conversions and reduce friction during checkout.

With these practices in mind, let’s explore how Nudge can directly boost your conversions at every shopper touchpoint.

Also Read: Understanding Landing Page Conversion Rates in 2025

Use Nudge to Increase Conversions at Every Touchpoint

Nudge is designed to help e-commerce and DTC brands significantly enhance their Conversion Rate Optimization (CRO) efforts by personalizing the shopper experience and optimizing every touchpoint across the customer journey. 

Here's how Nudge's features can directly improve your CRO:

1.Commerce Surfaces

Nudge personalizes every landing page, PDP, and shopping bag dynamically, adapting based on past shopper behavior, ad context, and campaign performance. This personalization increases engagement by providing the most relevant content and offers at each touchpoint, reducing bounce rates and improving conversions.

A smartphone screen displays an online shop offering a 30% discount and reviews.

2. AI Product Recommendations

With Nudge's AI-powered product recommendations, you can boost your AOV by offering tailored suggestions based on real-time shopper behavior, inventory, and category affinities. By recommending the right products at the right time across PDPs, cart, and checkout, Nudge ensures higher engagement and encourages additional purchases, driving up conversions.

Clothing product recommendations and a product bundle displayed on a yellow background.

3. Contextual Nudges

Nudge's Contextual Nudges are key in guiding customers to complete purchases. By triggering real-time messages based on shopper actions like exit intent or time spent on page, Nudge delivers timely offers and reminders. Whether through urgency cues or personalized promotions, these nudges help recover abandoned carts and reduce drop-offs, directly improving your CRO.

Mobile interface showcasing a Black Friday sale with 50% off, countdown timer, and product suggestions.

4. 1-1 Personalization

By using detailed behavioral insights, Nudge personalizes each shopper's experience, offering recommendations and content that resonate with their unique preferences and needs. This customized strategy improves conversion rates by making each person's shopping experience more interesting and relevant.

5. AI Decisioning

Nudge’s AI Decisioning feature allows for automated, real-time content adjustments based on user behavior. This ensures that the website adapts to each shopper in real-time, presenting the right content, offers, and layout to maximize conversions. By optimizing the shopping experience on the fly, Nudge helps you convert more visitors with less effort.

Incorporating Nudge’s features into your site ensures that every element is working together to enhance user experience, reduce friction, and optimize your CRO strategy to guide customers towards conversion. 

Conclusion

Implementing CRO best practices across your e-commerce site is essential for turning visitors into customers. From optimizing your checkout process to providing personalized product recommendations, these strategies help simplify the customer journey and improve conversion rates. 

Utilizing tools like Nudge, which offer AI-powered solutions for personalization and real-time optimization, can further enhance your CRO efforts. By focusing on user experience and optimizing every stage of the sales funnel, you can boost conversions and increase revenue.

Book a demo to see how Nudge can help your e-commerce brand succeed.

FAQs

1. Why is CRO important for e-commerce websites?

CRO helps maximize revenue by converting more visitors into paying customers without increasing traffic, optimizing each touchpoint of the customer journey.

2. How can I improve my checkout process for better conversions?

Make the checkout process easier by cutting down on steps, offering several ways to pay, and making sure the design is user-friendly and responsive to mobile devices.

3. What are trust signals, and why are they important?

Trust signals, like secure payment icons and product reviews, reassure customers that your site is safe, boosting their confidence and increasing the likelihood of conversion.

4. How can I use product reviews to improve CRO?

Customers are given social proof when product ratings and reviews are prominently displayed on PDPs, which increases their confidence in their purchasing choices.

5. What mobile optimization practices should I follow for CRO?

To improve user experience and boost conversions, make sure your e-commerce site is responsive, has quick load times, easy mobile payment options, and simplified navigation.

Table of contents
Talk to us

Ready to launch personalized commerce experiences?

Ready to launch personalized commerce experiences?

Ready to launch personalized commerce experiences?