After building and optimising eCommerce stores for businesses across Portsmouth and beyond, we've seen the same mistakes come up again and again. Here are the 10 most damaging — and how to fix them.
1. No Clear Value Proposition on the Homepage
A visitor lands on your store and within 5 seconds needs to understand: what do you sell, who is it for, and why should they buy from you rather than Amazon or a competitor? Most eCommerce homepages fail this test — they lead with a carousel of product images and no clear statement of what makes them worth buying from.
Fix: Add a clear headline above the fold that communicates your core value proposition. "Handmade leather goods, crafted in Portsmouth" is far more compelling than a wordless hero image.
2. Slow Page Speed
Every second of load time costs you sales. Studies consistently show that a 1-second delay in mobile page load reduces conversions by up to 20%. Image-heavy eCommerce sites are particularly prone to this.
Fix: Compress all product images (use WebP format where possible), implement lazy loading, reduce app bloat, and use a fast, reliable hosting provider. Run your site through Google PageSpeed Insights and address every critical issue.
3. Poor Mobile Experience
Over 60% of UK eCommerce traffic comes from mobile devices, yet many stores are clearly designed for desktop with mobile as an afterthought. Tiny tap targets, horizontal scrolling, and checkout forms that are painful to fill on a phone all kill mobile conversions.
Fix: Test your entire purchase journey on a real mobile device — not just a browser emulator. Every button should be at least 44x44px. The checkout should require minimal typing. Consider Apple Pay and Google Pay to streamline mobile checkout.
4. Complicated Checkout
Every additional field and step in your checkout is an opportunity for a customer to abandon their cart. The average eCommerce cart abandonment rate is around 70% — and a complicated checkout is one of the primary causes.
Fix: Offer guest checkout. Reduce form fields to the minimum required. Add progress indicators. Offer multiple payment methods. Auto-fill addresses where possible. Consider a one-page checkout.
5. No Trust Signals
Online shoppers are increasingly savvy — and sceptical. If your store doesn't clearly communicate that it's legitimate, secure, and reliable, visitors will leave without buying.
Fix: Add: SSL certificate (the padlock — non-negotiable), customer reviews on product pages, clear returns and refund policy, contact details (not just a form), secure payment logos at checkout, and trust badges where relevant.
6. Weak Product Photography
Online shoppers can't touch or try your products. Photography has to compensate. Poor lighting, low resolution, or single-angle photos dramatically reduce purchase confidence.
Fix: Invest in professional product photography. Show multiple angles, include lifestyle shots of products in context, and add zoom functionality. If budget is a constraint, a modern smartphone with a white background and good natural light is better than you might think.
7. Missing or Unhelpful Product Descriptions
Product descriptions that just list specs — or worse, copy the manufacturer's description — miss a huge opportunity to address customer objections, communicate benefits, and support SEO.
Fix: Write descriptions that lead with benefits, not features. Address common customer questions. Include dimensions, materials, and care instructions where relevant. Write unique descriptions — duplicate content harms SEO.
8. No Email Capture or Marketing Automation
Most first-time visitors don't buy. If you have no way to stay in touch with them — no email capture, no retargeting — they're gone forever. Abandoned cart emails alone can recover 5–15% of lost sales.
Fix: Set up a welcome discount popup for first-time visitors. Implement an abandoned cart email sequence (3 emails over 48 hours works well). Build a post-purchase email sequence that encourages repeat buying and reviews.
9. Ignoring SEO
Many Portsmouth eCommerce businesses rely entirely on paid ads and social media — and are one algorithm change away from losing their primary traffic source. Organic search traffic from Google is free, compounding, and doesn't stop when your ad budget does.
Fix: Optimise your category pages and product pages for search. Write unique product descriptions. Add a blog covering topics your customers search for. Build backlinks from relevant UK sites. Read our guide: How to Get Your Portsmouth Business to the Top of Google.
10. Not Tracking the Right Things
If you're only looking at total revenue and traffic, you're missing the data that actually drives improvements. Most Portsmouth eCommerce businesses aren't tracking conversion rate by traffic source, average order value trends, cart abandonment rate, or customer lifetime value.
Fix: Set up GA4 with eCommerce tracking properly configured. Connect it to Google Search Console. Review your data weekly — not just at month end. Look for patterns: which traffic source converts best? Which products have the highest return rate?
Need Help With Your eCommerce Store?
Jazz Creative offers eCommerce development and CRO services for Portsmouth and UK businesses. Whether you need a new store built or your existing one optimised, get in touch for a free consultation.