Online store selling: 12 optimisations that increase conversion rate

Speed, product page, checkout, and trust — the changes with the biggest impact we make for our clients' stores.
The average e-commerce conversion rate in Romania is somewhere around 1-2%. The difference between 1% and 2% means doubling sales with the same traffic. Here's where you win.
Speed and technical aspects
- WebP images, lazy loading, correct dimensions
- Under 2.5 seconds LCP on mobile (check in PageSpeed Insights)
- Internal search with suggestions — users who search convert 2-3x better
Product page
- Minimum 5 photos + a short video
- Price, availability, and delivery time visible without scrolling
- Description based on benefits, plus specifications table
- Customer reviews, with photos if possible
- "Product Questions" section
Basket and checkout
- Single-page checkout, with order without account
- Delivery cost displayed early — surprise at the end is the #1 cause of abandonment
- Complete payment methods: card, cash on delivery, Apple/Google Pay
- Progress bar and clear payment button, without distractions (no menu in checkout)
Trust, in short
Visible company details, real phone number, 14-day return policy explained simply, secure payment badges. A store without a "Contact" page with real details loses orders before it even gets a chance to make other mistakes.
Abandoned cart recovery
Three emails: at 1 hour, at 24 hours, at 72 hours. The second can include free delivery. Typically, you recover 5-15% of carts.
What you measure
- conversion rate by device (mobile vs desktop)
- average order value
- abandonment rate at each step of the checkout
Optimise in order of impact, not in the order your ideas come. Eliminating a single checkout step can be worth a whole month's worth of ads.
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Related service
Online store development
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Written by
Andrei MunteanuHead of Development, RebeDesign
Builds the websites and online stores: speed, stability and an admin you can use without us.
Updated: 30 August 2026