A bad website does not just fail to help your business — it actively drives customers away, damages your credibility, and wastes every naira you spend attracting visitors to it. And the frustrating part is that most web design failures are entirely avoidable, caused by the same handful of mistakes repeated again and again. This guide walks through web design done wrong: the most common and costly mistakes we see on Nigerian websites, why each one hurts, and how to fix it. Whether you are commissioning a new site or auditing your current one, use this as a checklist of what to avoid.
We see these problems constantly. DPX Digital Network (Design Planet Xperience, RC 3048318) has rebuilt many websites that fell into these traps, and this guide distils the mistakes that most often cost Nigerian businesses customers.
Mistake 1: A site that is slow to load
Speed is the silent killer of websites. Visitors abandon pages that take more than a few seconds to appear, and in Nigeria — where many people browse on mobile data they pay for by the megabyte — a slow, bloated site is doubly punishing. Slow sites also rank lower on Google, so the problem compounds: fewer people find you, and those who do leave before the page loads. The usual culprits are huge, unoptimised images and unnecessary scripts and plugins. The fix is disciplined performance work — compressing and correctly sizing images, removing what is not needed, and testing load times on real devices — which is one of the highest-return improvements any website can make.
Mistake 2: Not working properly on mobile
The majority of Nigerian web visitors arrive on phones, yet countless sites are still designed for desktop and treated as an afterthought on mobile. The result is text too small to read, buttons too close to tap, layouts that overflow the screen, and forms that are painful to complete. Every one of these frustrations sends a potential customer to a competitor. A website today must be designed mobile-first — built for the small screen first and scaled up — and tested on real phones, not just a browser window shrunk on a laptop. If your site is awkward on a phone, you are failing most of your audience.
Mistake 3: An unclear message and confusing navigation
A visitor should understand what you offer and what to do next within seconds of arriving. Many sites fail this basic test, burying their message under vague slogans, corporate jargon, or cluttered layouts, and hiding key information behind confusing menus. When people cannot quickly find what they came for, they leave. Good web design makes the core message immediately clear, organises information logically, and offers simple, predictable navigation. Every page should answer, plainly, what this business does, why it matters to the visitor, and what to do next. Clarity is not a design luxury; it is the difference between a site that converts and one that confuses.
Mistake 4: No clear call to action
A surprising number of websites attract visitors and then fail to tell them what to do, leaving them to wander off without acting. Every page should guide the visitor toward a clear next step — request a quote, order on WhatsApp, book a call, make a purchase — through an obvious, well-placed call to action. Without it, even an interested visitor slips away. The fix is simple but often overlooked: decide the single most important action you want visitors to take, and make the path to it unmistakable on every page.
Mistake 5: Looking untrustworthy
Nigerian buyers are rightly cautious online, and a website that looks unprofessional or lacks trust signals loses the sale before it begins. Common trust-killers include no clear physical address or phone number, obvious stock photos in place of real ones, spelling and grammar errors, no security (a "not secure" warning in the browser), and a dated or amateurish design. Building trust means the opposite: a polished, current design, a real and verifiable identity, genuine photography and testimonials, HTTPS security, and clear contact details. In a market where trust is the deciding factor, a website's credibility is inseparable from its success.
Mistake 6: Being invisible on Google
A website that cannot be found is an expensive business card. Many sites are built with no thought for search optimisation — no proper page titles, no relevant content, poor structure, trapped in slow performance — and so they never appear when customers search for what the business offers. The result is a site that only people who already know the company ever see, missing the vast audience actively searching. Good web design builds SEO into the foundation, so the site is eligible to rank from day one. If your site attracts no visitors from Google beyond your own name, this mistake is almost certainly part of the reason.
Mistake 7: Neglecting the site after launch
Too many businesses treat a website as a one-time project, launch it, and never touch it again. Over time the content goes stale, the software becomes outdated and insecure, links break, and the site slowly decays — quietly signalling a business that is not paying attention, and becoming vulnerable to being hacked. A website is a living asset that needs ongoing care: security updates, backups, fresh content, and occasional fixes. Budgeting for maintenance from the start protects the larger investment you made in the build and keeps the site working for you year after year.
Mistake 8: Choosing the cheapest option
Underlying many of these failures is a single decision: choosing the cheapest possible website. A bargain template thrown together with no strategy, content, SEO, or support almost inevitably ends up slow, invisible, untrustworthy, and awkward on mobile — committing several of the mistakes above at once. The business then loses customers for months before paying a professional to rebuild it properly, spending more in total than a good site would have cost at the outset. Cheap web design is the most expensive kind, because you pay twice: once for the failure, and again for the fix.
Mistake 9: Clutter, distraction, and too much going on
Where some sites say too little, others overwhelm. Pages crammed with competing messages, flashing banners, auto-playing videos, intrusive pop-ups, and a dozen calls to action all shouting at once leave visitors unsure where to look or what to do — and a confused visitor does nothing. This clutter often comes from trying to say everything at once, or from adding features because they are possible rather than because they help. Good web design is disciplined: it uses whitespace generously, gives each page a single clear purpose, and removes anything that does not serve the visitor's journey. Restraint is a feature, not a limitation. When every element on a page earns its place, the important things stand out and visitors are gently guided toward action rather than paralysed by noise. If your pages feel busy and exhausting, simplifying them is often the single fastest way to improve results.
Mistake 10: Ignoring accessibility
A website that only works well for some visitors is quietly turning others away. Poor colour contrast makes text hard to read, especially outdoors or for anyone with low vision; images without descriptive text exclude people using screen readers; and sites that cannot be navigated by keyboard shut out those who do not use a mouse. Beyond being the right thing to do, accessibility overlaps heavily with good design and SEO — the same practices that make a site usable for everyone also make it clearer, faster, and more findable. Ignoring accessibility narrows your audience and, increasingly, exposes larger organisations to reputational and even legal risk. Building with accessibility basics in mind — sufficient contrast, descriptive text for images, proper headings, and keyboard navigation — costs little when done from the start and benefits every visitor, not only those who need it most.
How to tell if your website is done wrong
You do not need to be technical to diagnose most of these problems. Open your site on your phone over mobile data and time how long it takes to load and how comfortable it is to use. Ask someone unfamiliar with your business to look at the homepage and tell you, within ten seconds, what you do and what they should do next — if they cannot, your message is unclear. Search Google for your service plus your city and see whether you appear at all. Check that your contact details, security padlock, and a clear call to action are present and obvious. Look at whether the content has been updated recently. This quick audit will usually reveal which of the mistakes above are costing you customers — and the good news is that every one of them is fixable.
The good news: none of this is permanent
If reading this list has made you wince about your own website, take heart: every single one of these mistakes can be put right, often without starting entirely from scratch and usually while keeping your existing domain and any content worth saving. A slow site can be optimised; a desktop-only site can be made properly responsive; unclear messaging can be rewritten; missing trust signals and calls to action can be added; and SEO foundations can be strengthened. The scale of the fix depends on how deep the problems run. Where only a few issues exist on otherwise sound foundations, targeted improvements may be enough. Where the underlying build is poor — slow, badly structured, not mobile-first — a rebuild on solid foundations is usually faster, cheaper, and more effective than endlessly patching a flawed site. Either way, the return is real: fixing these mistakes typically produces a marked improvement in visitors, enquiries, and sales, because you stop leaking the customers a broken site was quietly turning away. The cost of getting it right is almost always less than the cost of leaving it wrong.
Frequently asked questions
What is the most common web design mistake?
Slow loading and poor mobile experience are the most common and damaging, especially in Nigeria where most visitors browse on phones and mobile data. Both drive visitors away and hurt your Google rankings.
Can a bad website really cost me customers?
Absolutely. A slow, confusing, or untrustworthy site sends potential customers straight to competitors, and wastes the money you spend attracting them. A bad website often does more harm than no website at all.
How do I know if my website has these problems?
Test it on your phone, ask an outsider what your homepage communicates in ten seconds, search Google for your service and city, and check for security, clear contact details, and a call to action. This quick audit reveals most issues.
Is it better to fix my site or rebuild it?
It depends on how deep the problems run. Some issues can be fixed on the existing site, but if the foundations are poor — slow, badly structured, not mobile-first — a rebuild on solid foundations is usually faster and cheaper than patching indefinitely.
Why do so many websites make these mistakes?
Usually because they were built cheaply or without expertise — by template shops or inexperienced providers who omit strategy, performance, SEO, and testing. The mistakes are avoidable with a professional who builds properly from the start.
How much does it cost to fix a badly built website?
It varies with the extent of the problems, but a professional redesign generally starts from a few hundred thousand naira and pays for itself through the customers a working site brings in. Our cost guide explains the factors.
Get web design done right
Every mistake in this guide is avoidable, and every one is fixable. The businesses that win online are simply the ones that avoid these traps — fast, mobile-first, clear, trustworthy, findable sites that are looked after over time. If your website is making any of these mistakes, or you want to make sure your next one does not, talk to the DPX team. We will give you an honest assessment of what is going wrong and what it would take to put it right, and the first conversation is free.
