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What are the most common web design mistakes?

Short answer

The most common web design mistakes hide the basics. Pages bury the phone number, use vague headlines, cram every service onto one page and rely on stock photos. Many load slowly on phones, ask long forms, fail basic accessibility checks or launch without tracking. Each one quietly costs calls.

In this answer
  1. 01The mistakes we fix most
  2. 02Small errors that cost trust
  3. 03Design choices that look good but work badly
  4. 04How to catch them

The mistakes we fix most

MistakeWhat it costsThe fix
Vague headlineVisitors cannot tell what you doName the service and area in plain words
Hidden phone numberCallers give up and call a rivalA tap-to-call button on every page
One page for all servicesNo page ranks or convinces wellA page for each main service
Stock photosThe business feels fakeReal photos of your team and work
Slow pagesVisitors leave before the page loadsSmaller images and fewer scripts
Long formsPeople quit halfway throughAsk only what the first call needs
No trackingNobody knows what the site bringsCalls and forms tracked as key events

Small errors that cost trust

Stanford's Web Credibility Project tells sites to avoid errors of all types, no matter how small. A typo, a broken link, an old promotion or last year's hours all suggest a careless business. Visitors notice faster than owners do.

Design choices that look good but work badly

  • Image sliders that hide most of their messages
  • Light gray text that fails contrast checks
  • Pop-ups that cover the page on arrival
  • Menus with clever labels instead of service names
  • Autoplay video that slows the first screen

Good example. A dentist replaces a five-slide hero with one headline, one photo of the team and a booking button. Calls rise because visitors see the offer at once.

Bad example. The same dentist adds a pop-up newsletter offer, an autoplay video and a chat widget. The phone layout grinds to a halt.

How to catch them

Test every page on a phone, run PageSpeed Insights, submit every form and read the site aloud for typos. Then check GA4 for pages with traffic but no leads.

See the golden rules of web design. Our website redesign service fixes these mistakes without throwing away what works.

Keep reading

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