I’m building an ecommerce site and need conversion testing

Absolutely — conversion testing is one of the highest-leverage things you can do for an ecommerce site.

What conversion testing is

Conversion testing is the process of systematically improving the percentage of visitors who complete a desired action, such as:

• Add to cart
• Begin checkout
• Complete purchase
• Sign up for email/SMS
• Subscribe or reorder

What to test first

Start with the parts of the funnel that have the biggest impact:

1. Product page

   • Product images
   • Pricing display
   • Reviews / trust badges
   • CTA text and placement
   • Shipping/returns messaging

2. Cart

   • Free shipping threshold messaging
   • Promo code field placement
   • Upsells/cross-sells
   • Cart layout and friction

3. Checkout

   • Guest checkout
   • Number of steps
   • Payment options
   • Autofill / address handling
   • Error handling

4. Homepage / landing pages

   • Hero message
   • Value proposition
   • Category navigation
   • Featured products

Common high-impact hypotheses

Examples of good test ideas:

• “Adding shipping cost visibility earlier will reduce checkout abandonment.”
• “Changing the CTA from ‘Buy Now’ to ‘Add to Cart’ will increase product page clicks.”
• “Showing review stars near the price will improve add-to-cart rate.”
• “Reducing checkout steps from 3 to 2 will improve completed purchases.”
• “Offering express pay options like Apple Pay/Shop Pay above the fold will increase mobile conversions.”

How to run tests properly

1. Pick one primary metric

   • Usually purchase conversion rate
   • Or add-to-cart rate / checkout completion rate

2. Create a clear hypothesis

   • What you’re changing
   • Why you think it will help
   • What metric should move

3. Run A/B tests

   • Control = current version
   • Variant = change you want to test

4. Measure supporting metrics

   • Revenue per visitor
   • Average order value
   • Bounce rate
   • Checkout abandonment
   • Refund rate

5. Make sure the sample size is large enough

   • Don’t stop too early
   • Avoid drawing conclusions from small traffic swings

Useful tools

• A/B testing platforms: Optimizely, VWO, Convert, AB Tasty
• Analytics: GA4, Mixpanel, Amplitude
• Session replay/heatmaps: Hotjar, Microsoft Clarity
• Feature flags: LaunchDarkly, Split.io

Best practices

• Test one major change at a time
• Segment mobile vs desktop separately
• Prioritize high-traffic pages
• Don’t optimize only for clicks; optimize for actual revenue
• Keep a test log so you know what has been tried

A simple testing roadmap

If you’re just starting:

1. Improve product page trust signals
2. Test checkout simplification
3. Add or optimize express payment methods
4. Improve cart/shipping clarity
5. Test price and promotion presentation

If you want, I can help you create:

• a conversion testing roadmap
• A/B test hypotheses for your store
• a test backlog ranked by expected impact
• or a tracking plan with KPIs and events