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UX Design
5 minutes reading

Top UX Mistakes Affecting Online Sales: Avoid Losses

Written by
Anghel Bogdan
Published on
September 17, 2025
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Surprising or not, many online stores lose sales on the conveyor belt due to UX mistakes that make visitors quickly exit the site. Statistics don't lie: about 70% of users abandon a website if navigation is too complicated, and nearly half (47%) expect the page to load within two seconds. It sounds harsh, but that's the way it is.

User experience problems cost online businesses millions of lei in lost sales, but frankly, most of these mistakes can be corrected with fairly simple and effective strategies. From mismatched design for mobile, at overly complicated checkout forms, these trivial errors sabotage the conversion rate and drive away customers before you know it.

Here you will find an honest look at the main UX issues that are putting a brake on the performance of online stores, plus some practical solutions to make life easier for users. If you're wondering how to identify and fix technical shortcomings, navigation issues, or design errors that are cutting your sales, stay tuned.

Poor user experience and impact on sales

Confused users interacting with a cluttered digital dashboard, illustrating the impact of bad UX and poor interface design in a modern workspace.

A poor user experience can cut sales in half, sometimes even more, and that's because of three big problems. When companies do not realize what customers really want, complicate processes and do not personalize messages, they unwittingly lose a bunch of opportunities.

Lack of focus on customer needs

Too many businesses build websites according to their taste, not according to customer needs real. This is immediately apparent: tangled interfaces, which do not solve the problems of visitors, and on the contrary, confuse them.

Those who end up on the site have clear questions, they do not come at random:

  • How much does the product cost?
  • How does the delivery work?
  • What guarantees do I get?

If this information is missing or hidden who knows where, people leave without thinking. User Experience you need to answer these questions first, without putting them in the way.

A clear example: if an online store hides prices on the third page, do not be surprised that it loses customers. People want to see the costs from the start, without the hassle.

Companies that are really successful study their customers with all kinds of analysis tools. They see where visitors are stuck, what they are looking for the most, and then adjust the site to give them exactly what they need. It seems simple, but few really do it.

Complicated purchase process

A cumbersome buying process causes people to give up before they can finish the order. Studies show that 70% of baskets are abandoned precisely because of complicated steps.

Among the common problems are:

  • Too many stepsto complete the order
  • Forms with all sorts of unnecessary fields
  • Lack of preferred payment options
  • Obligation to make an account before buying

A decent process should have no more than 3 steps: you choose the product, fill in the delivery dates and pay. Any extra step cuts off your chances of completing the sale.

Customer trustdrops sharply if the process seems dubious. Blurred buttons or meaningless error messages make people knock in retreat.

Stores that allow payment as a guest usually sell more. Nobody wants to account for just one order, right?

Absence of personalized marketing

General messages do not convince anyone to buy. Personalized MarketingIt's about showing each visitor exactly the products he's interested in, not treating everyone to a pile.

Sites without customization treat everyone the same. A customer looking for sports shoes sees the same offers as the one who wants suits. Doesn't make much sense, right?

Effective personalization involves:

  • Recommendations based on browsing history
  • Offers for Recently Viewed Products
  • Content tailored to the customer's location
  • Special prices for the faithful

Companies that use personalization sell 20% more. It's simple: show the right products at the right time and people buy.

For example, if a customer looks at laptops, they may receive suggestions for compatible accessories. Or, someone in Bucharest sees options for fast, same-day delivery. The small details really make the difference.

The lack of customization leaves the site cold and impersonal. Customers want to feel that the offer is designed for them, not for everyone.

Design errors and navigation problems

Design errors and navigation problems are, without exaggeration, among the most common reasons why visitors leave a site without buying anything. A confusing structure, mismatched design, or lack of product information quickly cuts off customer confidence and lowers conversion rates.

Hassy navigation and unintuitive structure

An overly complicated navigation structure takes users out of skips and makes them exit quickly. If the menus are hidden or the products are miscategorized, people do not find what they are looking for and that's it, they are gone.

Common navigation problems:

  • Hidden or hard to notice main menus
  • Too many categories without a clear order
  • Missing or not working breadcrumbs
  • Weak or non-existent search function

Users expect to find the menu at the top or left. If you put it somewhere else, don't be surprised that you have a high dropout rate.

A clear menu with a maximum of 7 main categories helps tremendously in navigation. Each category must be named in everyone's meaning and lead exactly where you would expect it to be.

Design not adapted to the brand

If the design does not reflect the brand, visitors feel confused and do not trust your online store. Colors, fonts and visual style must say something about the quality of the products, otherwise everything looks generic.

Items that should be consistent:

  • Color palette in accordance with the identity of the brand
  • Fonts that reflect the personality of the brand
  • Images and illustrations in the same style
  • Communication tone according to the target audience

A Responsive design is mandatory on any device. Over 70% of users log in from their phone, and if the site isn't mobile-friendly, you lose them before you can show them something.

Visual inconsistency makes the site look unprofessional. Each page should keep the same design elements so that the experience is uniform and easy to recognize.

Incomplete product information

The lack of product details is a serious barrier to shopping. Customers want to know exactly what they are buying, otherwise they do not risk the money.

What information should not be missing from any product:

  • Detailed description with clear technical specifications
  • Quality images from multiple angles
  • Price clearly displayed, with all taxes included
  • Availability in stock
  • Delivery options and costs

Poor or low-resolution images make customers look for the same product elsewhere. Blurred photos do not inspire confidence at all.

Reviews and ratings of other buyers increase customer trustin the product. If there are no reviews, the product looks suspicious and risks remaining unsold.

Technical shortcomings and insufficient optimization

Technical problems and the lack of decent optimization put serious obstacles to online conversions. The performance of the site has a direct impact on the user experience and, by implication, the dropout rate. It's not at all to ignore.

Lack of optimization for mobile devices

Let's be honest: most of us surf and buy directly from the phone. If a site does not have Responsive design, risk losing almost 70% of potential traffic. It's not a little bit at all.

The little buttons? A real hassle. It's hard to hit links or add products to your cart when you have to zoom in or click multiple times.

Tiny text forces people to keep zooming in and out the screen. This not only annoys, but makes them quickly leave the site. Who has the patience for such a thing?

Complicated menus on mobile... not to mention. If you can't get to what you need quickly, just give up. Users have no time to waste searching through hidden categories.

Unoptimized Formsfor mobile turns completing the order into a real challenge. Too narrow fields, the keyboard that covers half the screen — all this cuts a lot out of the buzz and the conversions.

Poor site performance

A slow website? Basically, you sabotage your online sales yourself. Every extra second on load can mean 7% fewer conversions. That's a lot if you think about it.

Unoptimized imagesslow everything down. Large pictures, although they look good, consume resources and make visitors wait too long. And who has patience?

Unnecessarily loaded code and plugins put just for the sake of being there slow down the site. Browsing becomes cumbersome and, frankly, many users quickly give up.

Overloaded server or poor hosting pull everything down. During busy times, pages load hard or not at all. It's not exactly what you want when you have high traffic.

If you do not use the cache, each visitor will load all the items again. The result? Higher waiting times and increasingly impatient users.

Problems with charging time

If the site loads in more than 3 seconds, almost 40% of users simply leave it. Direct loss of sales, no question.

Javascript Files and CSS that are not optimized pull everything back. Blocked or uncompressed code reduces the speed of the site and, by default, the patience of visitors.

Multiple redirects make accessing content a test of patience. Many do not wait and are quickly looking for other options.

Lack of a CDN (Content Delivery Network) is especially felt for users from other regions. Content loads slowly, and frankly, not everyone has the patience to wait.

Unoptimized databases extend product display time. Queries take a long time and buyers lose interest pretty quickly.

"Frustrated user holding a futuristic smartphone with a spinning loading icon on the screen, in a clean, high-tech environment with soft lighting, symbolizing poor mobile performance and slow loading speeds.

Checkout mistakes and conversion problems

Completion of the order is the decisive moment. Here, many online stores lose customers for reasons that can even be avoided. Few payment options, lack of transparency or incomplete information — all this leads to abandoned baskets.

Limited payment options

Customers drop their order if they can't find their preferred payment method. Stores that only offer bank transfer or accept only one type of card lose important sales. It's not a surprise.

Modern payment options include:

  • Credit and debit card (Visa, Mastercard)
  • PayPal and other digital wallets
  • Payment on delivery (cash on delivery)
  • Interest-free rates
  • Apple Pay and Google Pay

PayPal remains one of the preferences of online shoppers. Many already have an account and see it as a safer option than entering their card data directly on the site.

Lack of diversity in pay affects generations differently. Young people prefer digital payments, and adults often choose cashback. It's hard to please everyone, but it's worth a try.

An effective online store offers at least 4-5 payment methods. This variety can increase conversions by up to 20%. They are not to be neglected.

Lack of transparency and trust

Trust is earned with total transparency on costs and conditions of sale. Hidden fees or missing information about delivery make customers give up shopping.

Elements that inspire confidence:

  • Total costclearly displayed before checkout
  • Return Policyin plain sight, not hidden in the basement
  • Security Certificateseasy to notice
  • Contact detailscomplete and accessible

Too many sites hide delivery costs until the last step. It's frustrating and decreases conversions dramatically. Who wants unpleasant surprises at the end?

SSL badges and certificates from known providers should be visible on the checkout page. Many customers look for these safety signs before entering their personal data.

Reviews, ratings and customer testimonials strengthen trust. A store without reviews looks suspicious or even risky to most buyers.

Absence of answers to frequently asked questions

Customers have all kinds of questions, especially when they are about to complete an order, and they usually want answers on the spot. If there is no FAQ section or clear delivery information, that feeling of insecurity quickly arises.

Frequently asked questions that everyone has:

  • How long does delivery actually take?
  • What shipping costs are involved?
  • What's the deal with returning the products?
  • If the product is not what I expected, what do I do?

A FAQ section, if done well, should be visible right on the checkout page. Many traders still hide this information through all sorts of complicated menus, which does not help anyone.

Chatbots or live chat functions can really make a difference, because the answers come immediately. It's especially useful when technical questions arise about products — who wants to search for hours?

Delivery details should be updated and as clear as possible. Customers want to know exactly when the order is coming and what options there are for their area, not just vague estimates.

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