Usability mistakes that can cost you up to 30% of customers
Advertising, strong copy and traffic cannot compensate for an awkward website that prevents purchase.
Poor usability - a major cause of low conversion. Research shows even minor interface errors can deter up to 30% of prospects.
Common website problems, how to spot them and how to help visitors act instead of leave.
Usability and its business value
Usability (usability) means how easily people find information, order, enquire or read terms on a website or product.
An attractive but awkward website wastes money. Good usability helps:
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Improve conversion by making the desired action easier
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Reduce staff workload through fewer clarification calls
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Build trust by showing customers their needs matter
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Retain customers with intuitive experiences that make return visits easy
Error 1: difficult navigation and crowded menus
If finding a section takes three clicks, users may leave.
Common problems:
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Hidden or awkward mobile navigation
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Illogical or unclear category names
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No website search
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Too many homepage options and banners
💡 Solution:
Aim to make products or services reachable within 3 clicks. Check mobile usability; the source puts mobile at 80% of current traffic.
Error 2: slow page loading
Users will not wait. Even a 2-3 second delay can increase bounce rates by 20-30%.
Reasons:
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Heavy image files
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Unoptimised video
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Poor layout implementation
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Poor hosting
💡 Solution:
Compress images with WebP or TinyPNG, use a CDN and test PageSpeed Insights. Speed is part of marketing.
Error 3: unclear buttons and calls to action
The user should understand what to do next. Hidden Buy or Send buttons can sharply reduce conversion.
💡 Solution:
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Use contrast for calls to action
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Be specific: 'Get an estimate', 'Book a consultation'
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Place buttons above the fold
Error 4: poor mobile adaptation
Mobile dominates traffic, yet small text, oversized forms and crowded buttons still make many websites difficult to use.
💡 Solution:
Check every page on mobile: shorter forms, simpler menus, vertical scrolling and large buttons.
Error 5: complex forms and unnecessary fields
The source attributes a 10% conversion drop to each extra field. Avoid unnecessary forms, especially on mobile.
💡 Solution:
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Remove unnecessary fields: name, phone and email are enough
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Add autofill
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Split lengthy forms into stages
Error 6: missing visual guidance and trust signals
Visitors need to trust the website. Missing company details, reviews, certificates or contact information can undermine confidence.
💡 Solution:
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Add reviews, team photos and business details
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Show security signals such as HTTPS and payment logos
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Provide genuine contact details, location and map
Error 7: a complex purchase process
An interested buyer may abandon if the process is too long.
💡 Solution:
Shorten checkout, remove unnecessary confirmations and keep the basket clear and accessible.
Spotting usability problems
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High bounce rate (>60%)
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Many clicks without enquiries
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Rapid exits from key pages
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Many incomplete orders
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Chat complaints: 'Cannot find it', 'Button not working'
Conduct usability audit - identify weaknesses and recover conversion without additional ad spending.
Conclusion
Usability supports sales, not just appearance. Loading speed, menu structure and clear forms can affect profitability.
Fixing common errors can improve conversion by 20-30% without extra ad spending.
Where is your website losing prospects, and what limits enquiries? Submit your enquiry on express marketing audit in Promarketing.tech - review website, advertising and analytics to find growth potential.
